Assuming that the average IQ score for all people is 100 with a standard deviati

Question

Assuming that the average IQ score for all people is 100 with a standard deviation of 15, Dr. Sheldon belives that students enrolled in his statistics course are significantly less intelligent than the population as a whole. He has discovered that the mean IQ of the 12 students who enrolled in his safety 341 class this sesmester was 97.7. USe beta=.05

1. State the null and alternate hypotheses in both word form and equation form.

2. Select the appropriate test statistic to use.

3. State the decision rule.

4. Calulate the test staistic

5. State the conclusion concerning the nul hypothesis.

6. Interpret the results of Dr. Sheldon;s Experiment. Based on this experiment, can Dr. Sheldon support his claim.

Explanation / Answer

given mu=100

sd=15

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