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A sample of 15 measurements, randomly selected from a normally distributed population, resulted in a sample...

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Basic Math

A sample of 15 measurements, randomly selected from a normallydistributed population, resulted in a sample mean,x¯¯¯=6.1 and sample standard deviation s=1.92.Using α=0.1, test the null hypothesis that μ≥6.4against the alternative hypothesis that μ<6.4 by givingthe following.

a) The number of degrees of freedom is: df=.

b) The critical value is: tα= .

c) The test statistic is: ttest=

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SolutionGiven that 64 61s 192n 15a The number of degrees of    See Answer
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