The weight of a candy bar is n50 1 we take a sample of 4

Reference no: EM13603498

The weight of a candy bar is N(50, 1). We take a sample of 4 candy bars and compute the sample mean. The sample mean equals 51.

What is the sampling distribution of the sample mean?

What is a 95 percent Confidence Interval for the mean?

State the null and alternative hypothesis for a one-sided test where we think the mean is "greater than".

What is the Critical Value for the one-sided test (assume alpha = .05)? What is the P-value for the sample mean of 51? Can you reject the Null Hypothesis?

What is the power of the test if you think the mean is really 52? Assume alpha = .05.

Reference no: EM13603498

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