Concept explainers
Peer mentor training at a firm. Peer mentoring occurs when a more experienced employee provides one-on-one support and knowledge sharing with a less experienced employee. The Journal of Managerial Issues (Spring 2008) published a study of the impact of peer mentor training at a large software company. Participants were 222 employees who volunteered to attend a 1-day peer mentor training session. One variable of interest was the employee’s level of competence in peer mentoring (measured on a 7-point scale). The competence level of each trainee was measured at three different times in the study: 1 week before training, 2 days after training, and 2 months after training. One goal of the experiment was to compare the
a. Explain why these data should be analyzed using a randomized block design. As part of your answer, identify the blocks and the treatments.
b. A partial ANOVA table for the experiment is shown below. Explain why there is enough information in the table to make conclusions.
c. State the null hypothesis of interest to the researcher
d. Make the appropriate conclusion.
e. A multiple comparisons of means for the three time periods (using an experimentwise error rate of .10) is summarized below. Fully interpret the results.
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Statistics for Business and Economics (13th Edition)
- Concur Technologies, Inc., is a large expense-management company located in Redmond, Washington. The Wall Street Journal asked Concur to examine the data from 8.3 million expense reports to provide insights regarding business travel expenses. Their analysis of the data showed that New York was the most expensive city, with an average daily hotel room rate of $198 and an average amount spent on entertainment, including group meals and tickets for shows, sports, and other events, of $172. In comparison, the U.S. averages for these two categories were $89 for the room rate and $99 for entertainment. The table in the Excel Online file below shows the average daily hotel room rate and the amount spent on entertainment for a random sample of 9 of the 25 most visited U.S. cities (The Wall Street Journal, August 18, 2011). Construct a spreadsheet to answer the following questions. City Hotel Room Rate ($) Entertainment ($) Boston 145 163 Denver 97 105 Nashville 93 101 New Orleans…arrow_forwardThe hospital readmission rate is often considered an indicator of an undesirable patient outcome. Youquality improvement team is located at a metropolitan hospital that serves a large population. The quality improvement team is conducting a study pertaining to readmissions, smoking and number of drugs administered to admitted patients with congestive heart failure (CHF). The team is interested in reducing the number of readmissions among patients discharged with a principal diagnosis of CHF. The team believes that the high admission rate is due to the difficulty that these patients have in controlling the number of drugs that they typically take. The team believes that by improving patient/family education regarding drug administration, the readmission rate could be reduced. Thus, they have developed the screen “CHF patients taking three or more drugs” to identify these patients before discharge. To evaluate the effectiveness of the measure, the team conducts a study on all CHF…arrow_forwardPursuing an MBA is a major personal investment. Tuition and expenses associated with business school programs are costly, but the high costs come with hopes of career advancement and high salaries. A prospective MBA student would like to examine the factors that impact starting salary upon graduation and decides to develop a model that uses program per-year tuition as a predictor of starting salary. Data were collected for 37 full-time MBA programs offered at private universities. The data are stored in the accompanying table Use the least-squares method to determine the regression coefficients b0 and b1.arrow_forward
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- 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 5 4 6 6 5 6 6 5 6 4 4 5 5 5 7 4 4 6 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…arrow_forwardIn 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 5 6 5 6 4 4 = ○ H₂: HMM HMR = HA H₂: HMM # HMR #HA | Ⓒ H₂³ Hmm = HMR = HA 5 5 5 O H₂: HMM# HMR #HA H₂HMM = HMR = HA 4 Find the value of the test statistic. 7.0 4 OH: Not all the population means are equal. H₂: HMM HMR HA 4 H₂: Not all the population means are equal. (a) Use a = 0.05 to test for…arrow_forwardIn 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 5 4 6 6 5 6 6 5 6 4 4 5 5 5 7 4 4 6 #1) Use ? = 0.05 to test for significant differences in perception among the three groups.State the null and alternative hypotheses A) H0: Not all the population means are equal.Ha: ?MM = ?MR = ?A B) H0: ?MM = ?MR = ?AHa: ?MM ≠ ?MR ≠…arrow_forward
- 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 6 3 5 6 5 5 6 5 6 5 4 6 7 3 5 6 (a) Use ? = 0.05 to test for significant differences in perception among the three groups. State the null and alternative hypotheses. H0: Not all the population means are equal.Ha: ?MM = ?MR = ?A H0: ?MM ≠ ?MR ≠ ?AHa: ?MM = ?MR =…arrow_forwardIn 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 7 3 6 6 3 5 6 4 5 5 5 5 6 5 6 6 Find the value of the test statistic. Find the p-value. (Round your answer to three decimal places.) p-value = (b) At the ? = 0.05 level of significance, we can conclude that there are differences in the perceptions for marketing…arrow_forwardIn 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 5 7 5 3 6 5 4 7 6 4 6 5 5 6 4 3 7 5 (a) Use ? = 0.05 to test for significant differences in perception among the three groups. State the null and alternative hypotheses. H0: ?MM = ?MR = ?AHa: Not all the population means are equal. H0: At least two of the population…arrow_forward
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