1. In hypothesis testing, the tentative assumption about the population paramete
ID: 3538722 • Letter: 1
Question
1. In hypothesis testing, the tentative assumption about the population parameter is
a. the alternative hypothesis
b. the null hypothesis
c. either the null or the alternative
d. None of these alternatives is correct.
2. The p-value
a. is the same as the Z statistic
b. measures the number of standard deviations from the mean
c. is a distance
d. is a probability
3. In hypothesis testing if the null hypothesis is rejected,
a. no conclusions can be drawn from the test
b. the alternative hypothesis is true
c. the data must have been accumulated incorrectly
d. the sample size has been too small
4. The error of rejecting a true null hypothesis is
a. a Type I error
b. a Type II error
c. is the same as b
d. committed when not enough information is available
Explanation / Answer
1. B
2. D
3. B
4. A
Explaination:
1. B: In hypothesis testing we begin by making a tentative assumption about a population parameter. This tentative assumption is called the null hypothesis.
2. D : The p-value is a probability that measures the support (or lack of support) for the null hypothesis. Hence D is true.
3. B: If your claim is this=that, then your null is your claim and when you reject your null, you reject your claim.
4. A: a type I error (or error of the first kind) is the incorrect rejection of a true null hypothesis.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.