Question: H 0 : p A = 0.4, p B = 0.2, and p C = 0.4 H a : The population proportions are not p
| H 0: | p A = 0.4, p B = 0.2, and p C = 0.4 |
| Ha : | The population proportions are not p A = 0.4 , p B = 0.2 , and p C = 0.4 |
A sample of size 200 yielded 20 in category A, 100 in category B, and 80 in category C. Use = .01 and test to see whether the proportions are as stated in H0 . Use Table 12.4.
a. Use the p-value approach.
2 = (to 2 decimals)
The p-value is less than .005
Conclusion: Conclude the proportions differ from 0.4, 0.2, and 0.4.
b. Repeat the test using the critical value approach.
2 .01 =9.210 (to 3 decimals)
Conclusion: Conclude the proportions differ from 0.4, 0.2, and 0.4.
Need help do not worry about the table of 12.4 i already figured that part out but I need help on Part A
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
