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What is the standard error of the? mean

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Suppose that you are testing the hypotheses H0?: mu =14 vs. HA?: mu >14. A sample of size 16 results in a sample mean of 14.5 and a sample standard deviation of 1.7

?a) What is the standard error of the? mean?

?b) What is the critical value of? t* for a 90?% confidence? interval?

?c) Construct a 90?% confidence interval for mu μ.

Reference no: EM132047844

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