Use the data in Try It Yourself 1 to construct a 95 confidence interval for the mean number of hours worked by grocery store employees Compare your result with the interval found in Example 3 a Find x and E b Find the left and right endpoints of the confidence interval c Interpret the results and compare them with Example 3 Number of hours 26 25 32 31 28 28 28 22 28 25 21 40 32 22 25 22 26 24 46 20 35 22 32 48 32 36 38 32 22 19

Question: Use the data in Try It Yourself 1 to construct a 95% confidence interval for the mean number of hours worked by grocery store employees.

Use the data in Try It Yourself 1 to construct a 95% confidence interval for the mean number of hours worked by grocery store employees. Compare your result with the interval found in Example 3.

Number of hours 26 25 32 31 28 28 28 22 28

a. Find x̅ and E.

b. Find the left and right endpoints of the confidence interval.

c. Interpret the results and compare them with Example 3.

Number of hours 26 25 32 31 28 28 28 22 28 25 21 40 32 22 25 22 26 24 46 20 35 22 32 48 32 36 38 32 22 19

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