Review the attached documents.
Activity I – A manager claims that increases in advertising expenditure will surely raise the firm’s profits, citing his sense that people find the firm’s ads entertaining.
1
. Sketch how you might refute this claim using:
a. A theoretical argument
b. Data
2
. Why might the refutation using data be more convincing?
Activity II – A grocery store manager is interested in the data-generating process for her store’s weekly soda sales. She believes factors impacting these sales include price, product placement, and whether the week contains a holiday. Write out a formal representation of the data-generation process for weekly soda sales that incorporates these and additional factors.
Activity III – Access the dataset
Sales and Costs.xlsx (See the attached) and answer the following questions.
1. Calculate these descriptive statistics.
a. Mean of sales
b. Variance of materials costs
c. Covariance of labor costs and materials costs
d. Mean of labor costs
e. Total sales
2. Calculate at least two more descriptive statistics for this dataset.
Activity IV – Suppose you receive an e-mail from a stock broker who claims to be able to accurately predict whether any given stock will rise or fall in price during the subsequent month. To “prove” her claim, she makes a prediction about performance (higher price or lower price) for ten stocks over the next month. You are skeptical of the broker’s claim, and assume she simply guesses which stocks will improve or worsen in price over any given month. Put another way, you assume she has a
5
0
% chance of being correct in her prediction for any given stock. Based on this assumption, you derive the following probabilities concerning her ten picks:
Number of correct picks |
0 | 1 | 2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
Probability |
0.001 |
0.01 |
0.044 |
0.117 |
0.205 |
0.246 |
1. What is the empirically testable conclusion resulting from your deductive reasoning?
2. How could you test your empirically testable conclusion using a data sample?
3. Outline the inductive and deductive reasoning you could use to evaluate whether or not the broker is simply guessing in her stock picks.
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1
Region
Sales
Labor Costs
Materials Costs
1
$2,0
7
27
9
$
5
3
13
$
25
4
8
2
$2,2
53
58
$
84
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$
24
15
3
$1,
158
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$
6
57
$27,
90
4
$1,9
16
10
$
75
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$
26
36
5
$2,
20
66
$
73
11
$20,
28
6
$1,
34
$58,0
71
$27,
32
7
$1,
52
85
$
63
39
$20,9
48
8
$2,
101
50
$71,
22
$22,
55
9
$2,3
43
35
$63,4
38
$26,4
83
10
$1,9
65
95
$
61
89
$
18
49
11
$1,
42
19
$85,0
93
$28,
69
12
$2,029,357.00
$
59
$27,439.00
13
$9
86
$
78
97
$26,713.00
14
$1,901,358.00
$86,003.00
$25,048.00
15
$1,
46
56
$86,
62
$27,959.00
16
$1,339,
142
$66,014.00
$20,393.00
17
$1,
200
$57,0
88
$20,524.00
18
$1,295,627.00
$
68
37
$26,861.00
19
$8
92
51
$63,295.00
$
23
54
20
$1,7
81
45
$68,708.00
$17,651.00
21
$2,004,7
67
$
72
40
$24,
30
22
$1,
80
$66,453.00
$25,955.00
23
$1,589,468.00
$73,428.00
$25,
79
24
$1,
41
98
$80,573.00
$27,410.00
25
$1,007,695.00
$71,
82
$27,023.00
26
$2,0
47
87
$58,
91
$19,5
64
27
$633,691.00
$70,385.00
$18,798.00
28
$1,498,891.00
$78,
44
$27,471.00
29
$845,502.00
$56,672.00
$28,614.00
30
$1,326,4
77
$85,644.00
$22,815.00
31
$2,269,852.00
$80,518.00
$21,864.00
32
$2,355,777.00
$64,302.00
$17,614.00
33
$537,921.00
$67,073.00
$18,759.00
34
$1,795,804.00
$87,295.00
$22,673.00
35
$1,
135
$70,522.00
$24,010.00
36
$1,089,914.00
$73,
215
$22,557.00
37
$2,011,619.00
$78,
151
$28,035.00
38
$2,281,482.00
$85,753.00
$23,273.00
39
$921,1
94
$
76
$20,
106
40
$1,691,862.00
$67,
237
$29,091.00
41
$1,268,440.00
$73,632.00
$28,556.00
42
$1,569,321.00
$80,347.00
$20,
155
43
$823,068.00
$80,
167
$19,767.00
44
$1,524,685.00
$75,288.00
$26,404.00
45
$1,908,
126
$63,282.00
$25,759.00
46
$1,566,024.00
$69,
96
$22,545.00
47
$1,619,888.00
$83,
180
$28,056.00
48
$808,591.00
$68,919.00
$23,
179
49
$1,040,
239
$67,078.00
$19,
99
50
$997,462.00
$75,289.00
$29,025.00
51
$801,630.00
$68,497.00
$18,
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52
$1,886,438.00
$67,
231
$27,850.00
53
$864,289.00
$83,353.00
$21,987.00
54
$544,624.00
$81,315.00
$27,823.00
55
$1,287,403.00
$87,633.00
$22,756.00
56
$890,054.00
$56,083.00
$20,547.00
57
$2,239,090.00
$86,
178
$27,994.00
58
$2,262,311.00
$57,910.00
$24,894.00
59
$1,080,
190
$87,059.00
$24,367.00
60
$2,
147
$80,572.00
$25,795.00
61
$2,396,990.00
$80,957.00
$19,901.00
62
$1,417,255.00
$58,839.00
$27,052.00
63
$1,
157
$69,583.00
$28,822.00
64
$1,
134
$80,016.00
$29,467.00
65
$2,345,258.00
$73,865.00
$19,903.00
66
$1,672,436.00
$81,601.00
$26,807.00
67
$2,345,
143
$63,813.00
$18,
103
68
$2,261,
119
$76,714.00
$26,727.00
69
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$81,
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$25,151.00
70
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$73,410.00
$25,915.00
71
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$75,838.00
$26,430.00
72
$1,056,578.00
$74,259.00
$28,569.00
73
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$70,017.00
$22,004.00
74
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$87,546.00
$17,993.00
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$57,482.00
$22,655.00
76
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$77,448.00
$24,843.00
77
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$81,244.00
$24,262.00
78
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$68,843.00
$28,814.00
79
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$83,347.00
$19,435.00
80
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$84,689.00
81
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$76,721.00
$22,590.00
82
$1,
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$73,115.00
$28,932.00
83
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$21,393.00
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$1,917,
107
$63,529.00
$22,760.00
85
$1,
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$75,823.00
$20,284.00
86
$2,358,103.00
$62,489.00
$24,670.00
87
$1,512,
228
$78,675.00
$22,574.00
88
$2,365,887.00
$77,698.00
$22,541.00
89
$1,
220
109
$69,343.00
$18,787.00
90
$1,582,269.00
$87,323.00
$20,135.00
91
$1,694,
185
$59,479.00
$23,
110
92
$1,
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$56,737.00
$21,527.00
93
$719,072.00
$88,180.00
$21,478.00
94
$761,940.00
$70,907.00
$29,386.00
95
$654,623.00
$65,953.00
$19,344.00
96
$1,754,492.00
$63,005.00
$19,231.00
97
$2,
100
$73,282.00
$20,066.00
98
$2,
112
$72,606.00
$24,597.00
99
$1,900,468.00
$76,151.00
$23,548.00
100
$927,771.00
$85,190.00
$26,457.00
101
$1,335,
138
$64,275.00
$24,610.00
102
$1,021,
173
$77,647.00
$19,816.00
103
$1,
146
$73,662.00
$24,943.00
104
$2,066,518.00
$57,254.00
$17,847.00
105
$1,932,
132
$75,716.00
$23,913.00
106
$919,282.00
$82,506.00
$29,471.00
107
$2,
141
$75,596.00
$27,372.00
108
$599,061.00
$62,359.00
$24,
159
109
$1,411,500.00
$61,
139
$26,711.00
110
$2,389,813.00
$72,706.00
$18,468.00
111
$2,377,562.00
$78,447.00
$27,798.00
112
$535,614.00
$76,687.00
$21,539.00
113
$2,147,780.00
$58,931.00
$29,267.00
114
$2,
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$57,422.00
$28,743.00
115
$1,
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$73,808.00
$29,
166
116
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$62,
161
$17,868.00
117
$1,387,932.00
$69,869.00
$26,738.00
118
$550,332.00
$86,126.00
$22,865.00
119
$653,114.00
$74,309.00
$26,982.00
120
$1,610,589.00
$85,271.00
$26,716.00
121
$1,459,722.00
$69,595.00
$22,494.00
122
$1,051,652.00
$87,409.00
$26,092.00
123
$941,630.00
$68,080.00
$27,530.00
124
$1,254,743.00
$59,737.00
$18,836.00
125
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$64,344.00
$20,925.00
126
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236
$25,071.00
127
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$23,266.00
128
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$72,952.00
$23,341.00
129
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$72,
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$28,773.00
130
$2,193,410.00
$84,652.00
$20,450.00
131
$533,
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$20,040.00
132
$1,499,001.00
$85,
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$23,602.00
133
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$59,434.00
$19,998.00
134
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$83,325.00
$21,826.00
135
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144
$80,895.00
$22,102.00
136
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$60,482.00
$20,
154
137
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$75,832.00
$26,613.00
138
$1,783,
202
$70,814.00
$28,130.00
139
$615,007.00
$72,724.00
$28,755.00
140
$1,073,409.00
$73,356.00
$24,640.00
141
$1,324,584.00
$56,036.00
$28,007.00
142
$1,572,545.00
$59,405.00
$27,291.00
143
$2,142,207.00
$83,025.00
$27,538.00
144
$1,322,803.00
$82,618.00
$28,963.00
145
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$69,877.00
$20,
216
146
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$69,888.00
$23,943.00
147
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$83,553.00
$22,312.00
148
$668,568.00
$71,330.00
$19,654.00
149
$901,037.00
$68,961.00
$25,080.00
150
$1,470,753.00
$60,016.00
$22,154.00
151
$2,
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$76,705.00
$17,901.00
152
$999,515.00
$59,058.00
$20,996.00
153
$2,281,842.00
$75,257.00
$23,574.00
154
$1,633,531.00
$77,013.00
$23,619.00
155
$1,193,062.00
$69,
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$25,855.00
156
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$81,676.00
$23,635.00
157
$1,030,840.00
$70,962.00
$19,786.00
158
$1,135,681.00
$80,343.00
$23,138.00
159
$2,300,149.00
$88,624.00
$22,954.00
160
$996,367.00
$59,992.00
$18,193.00
161
$1,950,032.00
$72,645.00
$22,088.00
162
$1,902,193.00
$70,097.00
$18,435.00
163
$1,943,646.00
$60,325.00
$27,499.00
164
$656,331.00
$24,471.00
165
$1,407,348.00
$78,931.00
$22,677.00
166
$2,145,281.00
$88,810.00
$19,953.00
167
$1,771,726.00
$59,593.00
$25,434.00
168
$2,249,655.00
$69,797.00
$28,933.00
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$1,133,698.00
$70,742.00
$18,
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170
$1,373,116.00
$76,342.00
$24,072.00
171
$1,606,126.00
$68,633.00
$22,686.00
172
$687,442.00
$70,880.00
$23,726.00
173
$2,207,122.00
$85,731.00
$22,326.00
174
$2,111,579.00
$64,977.00
$22,572.00
175
$1,596,675.00
$85,872.00
$21,387.00
176
$2,123,277.00
$58,092.00
$23,115.00
177
$2,389,076.00
$80,723.00
$27,666.00
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$1,870,329.00
$59,693.00
$25,
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$1,154,544.00
$66,204.00
$21,491.00
180
$1,143,138.00
$74,878.00
$22,836.00
181
$1,294,604.00
$88,236.00
$26,604.00
182
$1,966,778.00
$70,841.00
$24,158.00
183
$515,820.00
$87,052.00
$28,152.00
184
$2,
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$76,689.00
$23,061.00
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$1,956,787.00
$57,714.00
$19,884.00
186
$1,
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$64,546.00
$24,425.00
187
$1,597,823.00
$81,454.00
$27,510.00
188
$1,360,436.00
$81,669.00
$21,335.00
189
$519,655.00
$74,236.00
$17,838.00
190
$651,626.00
$57,153.00
$18,357.00
191
$1,063,954.00
$75,651.00
$18,936.00
192
$1,423,040.00
$84,311.00
$26,813.00
193
$645,388.00
$81,524.00
$24,561.00
194
$1,283,879.00
$85,012.00
$27,877.00
195
$2,049,640.00
$72,002.00
$21,578.00
196
$2,412,435.00
$78,743.00
$21,039.00
197
$887,789.00
$56,150.00
$18,591.00
198
$2,290,641.00
$63,763.00
$20,787.00
199
$1,590,895.00
$84,386.00
$22,510.00
200
$2,361,150.00
$68,802.00
$19,429.00
201
$2,142,241.00
$64,416.00
$24,386.00
202
$2,018,946.00
$72,
226
$21,395.00
203
$1,426,128.00
$56,606.00
$23,506.00
204
$2,307,175.00
$69,290.00
$23,132.00
205
$2,359,559.00
$56,410.00
$28,282.00
206
$821,665.00
$74,653.00
$17,632.00
207
$1,866,668.00
$59,957.00
$26,226.00
208
$604,250.00
$76,469.00
$28,895.00
209
$1,969,455.00
$62,555.00
$25,287.00
210
$2,284,304.00
$58,962.00
$18,274.00
211
$851,326.00
$78,286.00
$22,293.00
212
$804,827.00
$78,756.00
$21,863.00
213
$703,472.00
$71,453.00
$28,461.00
214
$732,869.00
$60,495.00
$25,047.00
215
$1,532,699.00
$69,098.00
$20,994.00
216
$1,001,095.00
$81,025.00
$25,177.00
217
$2,017,591.00
$83,820.00
$23,090.00
218
$1,395,371.00
$83,098.00
$26,715.00
219
$880,326.00
$68,715.00
$18,865.00
220
$1,525,176.00
$78,973.00
$26,175.00
221
$1,428,854.00
$83,654.00
$22,420.00
222
$1,319,132.00
$56,985.00
$25,476.00
223
$515,776.00
$79,818.00
$23,892.00
224
$2,123,854.00
$63,507.00
$23,303.00
225
$2,010,794.00
$78,581.00
$20,786.00
226
$990,785.00
$63,971.00
$17,590.00
227
$603,132.00
$87,000.00
$25,750.00
228
$1,550,614.00
$87,257.00
$17,557.00
229
$1,360,328.00
$60,054.00
$28,009.00
230
$2,406,056.00
$85,079.00
$27,580.00
231
$1,375,610.00
$82,593.00
$24,851.00
232
$1,819,798.00
$73,386.00
$27,438.00
233
$1,150,208.00
$62,494.00
$20,810.00
234
$1,052,096.00
$64,618.00
$21,318.00
235
$689,215.00
$84,406.00
$22,988.00
236
$628,382.00
$77,514.00
$22,015.00
237
$1,319,461.00
$61,778.00
$17,641.00
238
$2,172,774.00
$66,558.00
$19,540.00
239
$1,531,918.00
$82,419.00
$29,276.00
240
$1,993,862.00
$58,677.00
$28,344.00
241
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See full FAQWe complete each paper from scratch, and in order to make you feel safe regarding its authenticity, we check our content for plagiarism before its delivery. To do that, we use our in-house software, which can find not only copy-pasted fragments, but even paraphrased pieces of text. Unlike popular plagiarism-detection systems, which are used by most universities (e.g. Turnitin.com), we do not report to any public databases—therefore, such checking is safe.
We provide a plagiarism-free guarantee that ensures your paper is always checked for its uniqueness. Please note that it is possible for a writing company to guarantee an absence of plagiarism against open Internet sources and a number of certain databases, but there is no technology (except for turnitin.com itself) that could guarantee no plagiarism against all sources that are indexed by turnitin. If you want to be 100% sure of your paper’s originality, we suggest you check it using the WriteCheck service from turnitin.com and send us the report.
Yes. You can have a free revision during 7 days after you’ve approved the paper. To apply for a free revision, please press the revision request button on your personal order page. You can also apply for another writer to make a revision of your paper, but in such a case, we can ask you for an additional 12 hours, as we might need some time to find another writer to work on your order.
After the 7-day period, free revisions become unavailable, and we will be able to propose only the paid option of a minor or major revision of your paper. These options are mentioned on your personal order page.