Question: Complete this after you have read material and done the homework up through Chapter 6.

A private school promoted itself by advertising that its graduates had an average SAT verbal score of 550 (with a standard deviation of 100). At the end of the school year the Parent-Teacher Association (PTA) decided to test this contention and obtained the SAT verbal scores for 80 graduating seniors. Their average score was 532. What should the PTA conclude in regard to the school's claim? Discuss the results of the research, using the data below:

Cutoff (.05 level, one-tailed)=1.64

The comparison distribution is a distribution of means: M=550, SD _M ² =125, SD _M =11.18, shape=normal.

Z score for sample on the comparison distribution: 532-550/11.18 = -1.61 Confidence Intervals (95%): 510.1 to 553.9

Include in your discussion the null hypothesis and the research hypothesis, whether the null hypothesis is rejected, and what that means in terms of the study. Discuss the limitations of this study with regard to the design and the sample selected.

Price: $2.99

Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document