Question

For a random sample of 12 observations, the sample mean was 407 and the standard deviation was 6. Using the .05 significant level, answer the following questions.

What would the t value be?

What is the decision rule?


****


I think the t-value would be t = -3.0845

Any help would be great.

Related Questions

A sample of 40 observations is selected from one approximately normal population. The sample mean i... A random sample of 100 observations is to be drawn from a population with a mean of 40 and a standar... A random sample of 100 observations is to be drawn from a non-normal population with a mean of 40 an...