Question: You may need to use the appropriate technology to answer this question. In the digital age of marketing, special care must be taken to make
You may need to use the appropriate technology to answer this question.
In the digital age of marketing, special care must be taken to make sure that programmatic ads appearing on websites align with a company's strategy, culture and ethics. For example, in 2017, Nordstrom, Amazon and Whole Foods each faced boycotts from social media users when automated ads for these companies showed up on the Breitbart website (ChiefMarketer.com). It is important for marketing professionals to understand a company's values and culture. The following data are from an experiment designed to investigate the perception of corporate ethical values among individuals specializing in marketing (higher scores indicate higher ethical values).
| Marketing Managers | Marketing Research | Advertising |
|---|---|---|
| 4 | 6 | 5 |
| 4 | 5 | 6 |
| 3 | 6 | 7 |
| 5 | 5 | 6 |
| 3 | 6 | 6 |
| 5 | 5 | 6 |
Find the value of the test statistic.
Find the p-value. (Round your answer to three decimal places.)
p-value =
At the = 0.05 level of significance, we can conclude that there are differences in the perceptions for marketing managers, marketing research specialists, and advertising specialists. Use the procedures in Section 13.3 to determine where the differences occur. Use = 0.05. (Use the Bonferroni adjustment.)
Find the value of LSD. (Round your comparisonwise error rate to four decimal places. Round your answer to three decimal places.)
LSD =
Find the pairwise absolute difference between sample means for each pair of treatments.
xMM xMR
=
xMM xA
=
xMR xA
=
You may need to use the appropriate appendix table or technology to answer this question.
To test for any significant difference in the number of hours between breakdowns for four machines, the following data were obtained.
| Machine 1 | Machine 2 | Machine 3 | Machine 4 |
|---|---|---|---|
| 6.4 | 9.0 | 11.1 | 9.7 |
| 7.7 | 7.5 | 10.2 | 12.7 |
| 5.3 | 9.6 | 9.6 | 11.9 |
| 7.5 | 10.4 | 10.4 | 10.8 |
| 8.3 | 9.3 | 9.3 | 11.1 |
| 7.4 | 10.0 | 8.8 | 11.6 |
Use the Bonferroni adjustment to test for a significant difference between all pairs of means. Assume that a maximum overall experimentwise error rate of 0.05 is desired.
Find the value of LSD. (Round your comparisonwise error rate to three decimal places. Round your answer to two decimal places.)
LSD =
Find the pairwise absolute difference between sample means for each pair of machines.
x1 x2
=
x1 x3
=
x1 x4
=
x2 x3
=
x2 x4
=
x3 x4
=
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