I. Directions: Identify the BEST statistical test to use given the following res
ID: 3060682 • Letter: I
Question
I. Directions: Identify the BEST statistical test to use given the following research situations. Write the letter that corresponds to your answer in your answer sheet. A. Z-test for one sample mean B. Z-test for two sample means C. T-test for one sample mean D. T-test for two sample means E. Analysis of Variance F. Chi-square Goodness of Fit G. Chi-square Test of Independence H. Pearson Product Moment Correlation Coefficient i. Spearman's Rank Correlation A financial analyst wants to find out the relationship of interest rates on bonds and the interest rates for loans. He observed five transactions on interest rates of bonds and loans. 1. The table below shows the data by two manufacturers of a 60-second developing film. The researcher wanted to test if manufacturer A can develop more films than manufacturer B 2. Mean 98 95 Standard Deviation 5.3 4.2 Manufacturer 10 12 A research was conducted to determine the relationship between years of education and salary potential. Ten persons who have been employed for five years were interviewed between two variables. 3. . The researcher wanted to know the degree of relationship 4. It is reported that the average monthly salary of accounting graduates in the accounting field is Php 18 ,000. A dean of a certain university conducted a survey of 60 accounting graduates and found their average salary at Php 20,500 per month with a standard deviation of Php 1,500 per month. He wanted to find out if the reported average salary is correct. A PNU professor gathered data on the number of failures in Differential Geometry and Galois Theory classes. He gathered the following data and wanted to know if grade is independent of the subject area. 5. Differential Geometry Galois Theory Passed 24 31 Failed 16 amine the effects of pets and friends in stressful situations, researchers recruited 45 people to participate in an nt. Fifteen of the subjects were randomly assigned to each of three groups to perform a stressful task alone experimeExplanation / Answer
answering four parts as per Chegg policies
1) H.
The interest rate on bonds and the interest rate for loans are both measured on ratio scale of measurement. In order to understand the relationship between them, it is suggested to use Pearson product moment correlation coefficient.
2) D.
Since manufacture A and B are independent of each other It is suggested to apply T-test for two sample means.
3) H.
Years of education and salary potential are both measured on ratio scale of measurement. in order to know the degree of relationship between these two variables it is suggested to apply Pearson product moment correlation coefficient.
4) A
I want to compare the sample mean with the population mean it is suggested to use one sample Z test. since the sample size is large, greater than 30 I prefer Z test.