A clothing manufacturer is concerned that the heights of young men aged 18 to 24 might have changed since the patterns in use were first designed. A random sample of young men aged 18 to 24 was selected. The average height in the sample data was 177.2 cm, with a standard deviation of 7.2 cm. A histogram of the sample data was symmetric and bell-shaped. Assuming this sample is representative of the population, what proportion of young men aged 18 to 24 are shorter than 170 cm? What proportion of young men aged 18 to 24 are taller than 199 cm?
Answer to relevant QuestionsAnnual sales for two printing shop franchises are shown opposite in Exhibit 3.47. Calculate an appropriate measure of variability. Which enterprise had more variable sales over the period? A software company is about to release three new software programs, one from each of three very distinct business divisions. The first program is a new game aimed at 15-to 25-year-olds.Its probability of succeeding is ...Out of 100 gas station customers 80 customers pay with a credit card. Twenty-five gas station customers buy something other than gas (e.g., chips or pop) and 20customers pay with a credit card and buy something other than ...Refer back to Example 4.1, about the employee health and fitness facilities (page 157). Are gender and tendency to use the health and fitness facilities related in this sample? You must use probabilities to support your ...Refer back to Exercise 21 above. Are buying a membership and signing up for fitness classes mutually exclusive? Are buying a membership and signing up for fitness classes independent?
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