Question: Please write it in a paper, it's easier to follow along. 10. (25 points) Suppose that a scientist takes a simple random sample of 18

Please write it in a paper, it's easier to follow along.

Please write it in a paper, it's easier to follow along. 10.

10. (25 points) Suppose that a scientist takes a simple random sample of 18 students and gives them an IQ test before a large lunch and then an IQ test after the meal. The differences in scores for each student is then computed yielding a mean of = = 2.1 and a standard deviation of s = 4.01 for the differences. The sample distribution was found to be sufficiently normal. Is there sufficient evidence to suggest that there is a difference in the average IQ scores? Perform a hypothesis test at a significance level of a = 0.05 with a two-sided alternative hypothesis (make sure to state assumptions and hypotheses)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!