3. In a recent hypothesis test, the null hypothesis was NOT rejected. Which of the following...
| 3. | In a recent hypothesis test, the null hypothesis was NOT rejected. Which of the following types of error could have been made, and what is the probability of such an error? | ||||||||
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Homework Answers
since failure to reject null hypothesis given it is false lead to type II error
correct option is b:
b) Type II error with probability of β
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3.
In a recent hypothesis test, the null hypothesis was NOT
rejected. Which of the following...
In hypothesis testing, if the null hypothesis has NOT been rejected when the alternative hypothesis is...
In hypothesis testing, if the null hypothesis has NOT been rejected when the alternative hypothesis is true, a. a Type II error has been committed b. a Type I error has been committed c. the correct decision has been made d. either a Type I or Type II error has been committed
If the null hypothesis is rejected when the null hypothesis is true, what type of error,...
If the null hypothesis is rejected when the null hypothesis is true, what type of error, if any, has been made? Type I error Type II error Correct decision Type error
11. If the null hypothesis is rejected at a 05 significance level, it (a) must also...
11. If the null hypothesis is rejected at a 05 significance level, it (a) must also be rejected at a.10 significance level. (b) might also be rejected at a .10 significance level. (c) must not be rejected at a.10 significance level. (d) none of the above lfte null hypothesis İs not rejected at a .05 significance level, it: (a) will also not be rejected at a.01 significance level. (b) might be rejected at a .01 significance level. (e) will be...
Which of the following statements is FALSE? a.) The power of a hypothesis test is the...
Which of the following statements is FALSE? a.) The power of a hypothesis test is the probability of not making a Type II error. b.) Alpha (α) is equal to the probability of making a Type I error. c.) The probability of rejecting the null hypothesis when the null hypothesis is true is called a Type I Error. d.) A smaller sample size would increase the effectiveness of a hypothesis test.
If the null hypothesis is rejected when the null hypothesis is true, what type of error,...
If the null hypothesis is rejected when the null hypothesis is true, what type of error, if any, has been made? O O O O Correct decision Type Il error Type I error Type error Click to select your answer.
When a false null hypothesis is not rejected, a.we commit a type i error b. we...
When a false null hypothesis is not rejected, a.we commit a type i error b. we choose the wrong alpha c. we commit a type ii error d. we commit a type ii error e.we rely on the p value to see the probability of the null hypothesis being correct
9. (Bonus: 5 points) A researcher rejected a null hypothesis in a test when α 5%....
9. (Bonus: 5 points) A researcher rejected a null hypothesis in a test when α 5%. For which of the following significance levels the test will be rejected in any situations? Explain. a. α 0.15% b. 2.5% c. α# 0.02% d. α 20%
if a hypothesis test leads to failing to reject the null hypothesis, a___ a) type II...
if a hypothesis test leads to failing to reject the null hypothesis, a___ a) type II error must have been committed b) type II error MAY have been committed c) type I error MAY have been commited
If the null hypothesis is that the population mean is equal to 150 and a sample...
If the null hypothesis is that the population mean is equal to 150 and a sample mean of 113 gave significant support against the null hypothesis, which of the following sample means would be certain to give support against the null hypothesis. a) 114 b.) 122 c.) 264 d.) 112 _____12) If the p-value is less than the significance level, you would . a.) reject the null hypothesis b.) accept the...
For a given population with σ=10.5 lb. we want to test the null hypothesis μ=66.5 against...
For a given population with σ=10.5 lb. we want to test the null hypothesis μ=66.5 against the alternative hypothesis μ ≠66.5 on the basis of a random sample of size n=64. If the null hypothesis is rejected when x¯<64.6 lb. or x¯>68.8. a) (3 points) What is the probability of a type I error? b) (4 points) What is the probability of a type II error and the power of the test when in reality μ=67.0?
In hypothesis testing, if the null hypothesis has NOT been rejected when the alternative hypothesis is true, a. a Type II error has been committed b. a Type I error has been committed c. the correct decision has been made d. either a Type I or Type II error has been committed
11. If the null hypothesis is rejected at a 05 significance level, it (a) must also be rejected at a.10 significance level. (b) might also be rejected at a .10 significance level. (c) must not be rejected at a.10 significance level. (d) none of the above lfte null hypothesis İs not rejected at a .05 significance level, it: (a) will also not be rejected at a.01 significance level. (b) might be rejected at a .01 significance level. (e) will be...
If the null hypothesis is rejected when the null hypothesis is true, what type of error, if any, has been made? O O O O Correct decision Type Il error Type I error Type error Click to select your answer.
9. (Bonus: 5 points) A researcher rejected a null hypothesis in a test when α 5%. For which of the following significance levels the test will be rejected in any situations? Explain. a. α 0.15% b. 2.5% c. α# 0.02% d. α 20%
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