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  3. you may need to use the appropriate appendix table

You may need to use the appropriate appendix table or technology to answer this question. A simple...

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Question

Basic Math

You may need to use the appropriate appendix table or technologyto answer this question.

A simple random sample with

n = 54

provided a sample mean of 23.5 and a sample standard deviationof 4.4. (Round your answers to one decimal place.)

(a)

Develop a 90% confidence interval for the population mean.

to

(b)

Develop a 95% confidence interval for the population mean.

to

(c)

Develop a 99% confidence interval for the population mean.


Answer & Explanation Solved by verified expert
3.6 Ratings (304 Votes)
solution Given thatPoint estimate sample mean 235sample standard deviation s 44sample size n 54Degrees of freedom df n 1 54 1 53a At 90    See Answer
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