Question

Hello, I really need help on problems 1-4 listed below for my practice set. I appreciate the help!

1. Which of the following is true with regard to a P-value? (More than one answer may be correct) a. The P-value is generated under the assumption that the null hypothesis is false. b. The P- value may never be negative. c. As the P-Value approaches 0 is it is less likely the null hypothesis will be rejected. d. In a left-tailed test if the P-Value is 0, the test statistic equals the population value as stated in the null hypothesis. 2. A hypothesis test is used to test a claim. On a two-tailed hypothesis test with a -1.96 critical value, the collected sample's test statistic is calculated to be -2.51.Which of the following is the correct decision statement for the test? a. Claim the null hypothesis is true b. Fail to reject the null hypothesis c. Reject the null hypothesis d. Claim the alternative hypothesis is true 3. A P-value of 0.12 is calculated on a hypothesis test with a significance level set at 0.01. Which of the following is the correct conclusion for the test? a. Claim the null hypothesis is true b. Fail to reject the null hypothesis c. Reject the null hypothesis d. Claim the alternative hypothesis is true 4. Which of the following are not requirements for using the t-distribution for a hypothesis test concerning μ? (More than one answer may be correct.) a. Sample is a simple random sample c. Population must be normally distributed d. The population standard deviation must be known

Answer 1

1)

The p value may never be negative
2)

Reject the null hypothesis as zstat < -1.96

3)

Fail tot reject the null hypothesis asp value > 0.01

4)
Sample size must be larger than 30
The population std.deviationnn must be known