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Construct a 95?% confidence interval to estimate the population mean when x bar =124 and s?...

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Question

Basic Math

Construct a 95?% confidence interval to estimate the populationmean when x bar =124 and s? =29 for the sample sizes below.

?a)

n=40?????

?b)

n=50???????

?c)

n=90

round to 2 decimale places as needed

Answer & Explanation Solved by verified expert
3.7 Ratings (421 Votes)
Solution Given thatPoint estimate sample mean 124sample standard deviation s 29asample size n 40Degrees of freedom df n 1 40 1 39At 95 confidence level the t is 1 95 1 095 005    See Answer
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