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A sample of 20 people has a mean of 53.4 and a standard deviation of 31.97....

A sample of 20 people has a mean of 53.4 and a standard deviation of 31.97. Calculate the t-statistic for the hypothesis: μ =35.1.

Round your answer to four decimal places.

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Answer #1

solution:

sample size = n = 20

sample mean = = 53.4

sample standard deviation = S = 31.97

Hypothesized mean = = 35.1

since population standard deviation is not known and sample size is small

so we willuse t test statistics:

so value of t test statistics = 2.5599

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