# The mean IQ score of statistics professors is less than 119. The significance level is 0.05. What is the null hypothesis (H0) and alternative hypothesis (H1)?

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Assume that a simple random sample has been selected from a normally distributed population.

What is the test statistic t?

What is the P-value?

How do you find the critical value using a t-distribution table?

What can you conclude?

n = 27, x-bar = 124, s = 7.

Assume that a simple random sample has been selected from a normally distributed population.

What is the test statistic t?

What is the P-value?

How do you find the critical value using a t-distribution table?

What can you conclude?

n = 27, x-bar = 124, s = 7.

##### 1 Answer

Dec 10, 2017