A corporation administers an aptitude test to all new sales representatives. Management is interested in the extent to which this test is able to predict weekly sales of new representatives. Aptitude test scores range from 0 to 30 with greater scores indicating a higher aptitude. Weekly sales are recorded in hundreds of dollars. Construct a scatter plot of the following test scores and weekly sales for a random sample of 10 representatives.
Answer to relevant QuestionsThe U.S. Department of Agriculture (USDA) Center for Nutrition Policy and Promotion (CNPP) developed and administered the Healthy Eating Index-2005 to measure how well the population follows the recommendations of the 2005 ...Compute the variance and standard deviation of the following sample data: 6 8 7 10 3 5 9 8 A set of data is mounded, with a mean of 450 and a variance of 625. Approximately what proportion of the observations is? a. Greater than 425? b. Less than 500? c. Greater than 525? Consider the following sample of five values and corresponding weights: xi wi 4.6 .......... 8 3.2 .......... 3 5.4 .......... 6 2.6 .......... 2 5.2 .......... 5 a. Calculate the arithmetic mean of the xi ...In Chapter 1, we described graphically using a frequency distribution table and a histogram the time (in seconds) for a random sample of n = 110 employees to complete a particular task. Describe the data numerically based on ...
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