The average salary of 64 employee was 5400 and the sample standard deviation was 280. Find the 90% confidence interval for the population mean salary. Select one: O a. 5400 + 56.33 O b. 5400 ± 58.42 O c. 5400± 54.24 O d. 5400 ± 52.16

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Q: How large a sample should be selected to provide a 99% confidence interval with a margin of error of…

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Q: In a random sample of ten ​people, the mean driving distance to work was 23.2 miles and the standard…

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Q: The average salary of 64 employee was 5400 and the sample standard deviation was 260. Find the 90 %…

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