Use the data in Example 1 and technology to construct 75 , 85 , and 90 confidence intervals for the mean number of hours worked by grocery store employees How does the width of the confidence interval change as the level of confidence increases Data in Example 1 a Enter the data b Use the appropriate command to construct each confidence interval c Compare the widths of the confidence intervals for c 0 75, 0 85, and 0 90 7167 3322 1935 1431 1819 3332 3243 6013 6535 3435 3322 6008 2232 30 27 22 27

Question: Use the data in Example 1 and technology to construct 75%, 85%, and 90% confidence intervals for the mean number of hours worked by grocery

Use the data in Example 1 and technology to construct 75%, 85%, and 90% confidence intervals for the mean number of hours worked by grocery store employees. How does the width of the confidence interval change as the level of confidence increases?

Data in Example 1

7167 3322 1935 1431 1819 3332 3243 6013 6535 3435 3322 6008

a. Enter the data.

b. Use the appropriate command to construct each confidence interval.

c. Compare the widths of the confidence intervals for c = 0.75, 0.85, and 0.90.

7167 3322 1935 1431 1819 3332 3243 6013 6535 3435 3322 6008 2232 30 27 22 27

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