Question

Please write this in the computer, not by the hand.

To apply the test of hypothesis and to compute the confidence level, P – value, and the sample size lets vary the confidence level and the accuracy of the textbook example of the mean bonding strength of a lithium aluminum alloy (example 8 - 5, page 264)

Remember that in the textbook example the:

x = 13.71 mega Pascal n was equal to 22 specimens. α = 0.05 T-, v = 21-T0025, 2,--2.080 S 3.55 mega Pascal Assume 13 mega Pascal The accuracy is 0.1 mega Pascal

Questions:

1. If you change the alpha from 0.05 to an alpha of 0.01 the critical T use in the hypothesis testing (from the table) is +2.831?

a.         True

b.         False

2. The experimental T in the test of hypothesis is 0.938?

a.         True

b.         False

3. The null hypothesis is rejected?

a.         True

b.         False

Answer 1