Part II.

Suppose that the z is the test statistic for hypothesis testing, calculate the value of z for each of the following: (2pts each item)

11-12. = 10, =3, n=68, and x=9.2

13-14. = 26, =4.5, n=80, and x=28.3

15-16. = 75, = 5.8, n=118, and x=72.2 17-18. = 52, = 7, n=160, and x=49.6 19-20. =100, =12, n=130, and x=92 Part III.

For item no. 21-25.Solve the given problem.

A certain group of welfare recipients receives relief goods with a mean amount of Php 300.00 per week. A random sample of 50 recipients is surveyed and found that the mean amount of relief goods they received in a week is Php 300 and a standard deviation of Php 50.00. Test the claim at 1% level of significance is not Php 300.00 per week and assume that the population is approximately normally distributed.