# Question: You are testing the null hypothesis p 0 4 and

You are testing the null hypothesis p = 0.4 and will reject this hypothesis if z_ is less than _2.05.

a. If the null hypothesis is true and you observe z equal to - 2.12 which of the following will you do? (1) Correctly fail to reject Ho. (2) Correctly reject Ho. (3) Commit a type I error. (4) Commit a type II error.

b. What is the significance level for this test?

c. What is the p-value for z = - 2.12?

a. If the null hypothesis is true and you observe z equal to - 2.12 which of the following will you do? (1) Correctly fail to reject Ho. (2) Correctly reject Ho. (3) Commit a type I error. (4) Commit a type II error.

b. What is the significance level for this test?

c. What is the p-value for z = - 2.12?

## Answer to relevant Questions

An insurance company states that 90% of its claims are settled within 30 days. A consumer group selected a random sample of 75 of the companyâ€™s claims to test this statement. If the consumer group found that 55 of the ...Find the values of t that bound the middle 0.95 of the distribution for df = 12. Refer to Applied Example 9.14. a. State the Polish statisticiansâ€™ hypothesis. b. Is their hypothesis the null or alternative hypothesis? Explain. c. State the null hypothesis. State the alternative hypothesis. d. ...a. The central 90% of the chi-square distribution with 11 degrees of freedom lies between what values? b. The central 95% of the chi-square distribution with 11 degrees of freedom lies between what values? c. The central ...Determine the critical region and critical value(s) that would be used to test the following using the classical approach:Post your question