Question

The following 10 numbers were drawn from a population: 5 7 7 10 10 10 11...

The following 10 numbers were drawn from a population:

5 7 7 10 10 10 11 12 12 13

a) Calculate the 95% confidence interval for the population mean

b) Is it likely that these numbers came from a population with a mean of 13? Explain

c) Calculate t and decide to reject or fail to reject the null hypothesis. mu=13 using a two-tailed test and at an alpha of .05

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