The mean IG for the entire population in any age goup is suppose to be 100. Suppose the IQ scores of 72 12th graders in columbus are measured and the sample mean is found to be 103.4 and the sample standard deviation is 20.2. Do the scores provide evidence that the mean IQ of this population is not 100?
A) State the null HYPOTHESIS and the alternative Hypothesis.
B) Give the standard score for the data.
C) Find the P-Value for this significance test.
D) Summarize the conclusion in the context of this problem.