FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 10: One-Sample Tests of Hypothesis

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 41

Multiple Choice

Review LaterAdd Note

Review Later

If the alternate hypothesis states that µ ≠ 4,000,where is the rejection region for the hypothesis test?

A) In both tails
B) In the lower or left tail
C) In the upper or right tail
D) In the center

Correct Answer

verified

Show Answer

Question 42

Multiple Choice

Review LaterAdd Note

Review Later

For an alternative hypothesis: µ > 6,700,where is the rejection region for the hypothesis test located?

A) In both tails
B) In the left or lower tail
C) In the right or upper tail
D) In the center

Correct Answer

verified

Show Answer

Question 43

Multiple Choice

Review LaterAdd Note

The mean annual incomes of certified welders are normally distributed with the mean of $50,000 and a population standard deviation of $2,000. The ship building association wishes to find out whether their welders earn more or less than $50,000 annually. The alternate hypothesis is that the mean is not $50,000. Which of the following is the alternate hypothesis?

Consider a left-tailed test,where the p-value is found to be 0.10. If the sample size n for this test is 49,then the t-statistic will have a value of ________.

The level of significance is the probability of rejecting the null hypothesis when it is actually true.

A hypothesis regarding the weight of newborn infants at a community hospital is that the mean is 6.6 pounds. A sample of seven infants is randomly selected and their weights at birth are recorded as 9.0,7.3,6.0,8.8,6.8,8.4,and 6.6 pounds. What is the alternate hypothesis?

The mean weight of newborn infants at a community hospital is 6.6 pounds. A sample of seven infants is randomly selected and their weights at birth are recorded as 9.0,7.3,6.0,8.8,6.8,8.4,and 6.6 pounds. Does the sample data show a significant increase in the average birthrate at a 5% level of significance?

For a one-tailed hypothesis test,the critical z-value of the test statistic is −2.33. Which of the following is true about the hypothesis test?

For a null hypothesis,H₀: µ = 4,000,if the 1% level of significance is used and the z-test statistic is +6.00,what is our decision regarding the null hypothesis?