Quiz 1 (15 % of your grade), each question weights., point Multiple choice quest

Question

Quiz 1 (15 % of your grade), each question weights., point Multiple choice questions . Which of the following is true for the null and alternative hypotheses? Both hypotheses must be true b. C It is possible for both hypotheses to be tru It is possible for neither hypothesis to be true d. You conduct a hypothesis test and you observe values for the sample mean and sample standard deviation when n-25 that do not lead to rejection of null hypothesis. You calculate p-value of 0,0667, What will happen to p-value if you observe the same sample mean and standard deviation for a sample >257 Increase Decrease Stay the same May either increase or decrease 2. a. b. c. d. 3. a. b. c. d. The form of alternative hypothesis can be: One-tailed Two-tailed Neither one nor two tailed One or two-tailed 4. a. b. c. d. The value set for a is known as: The rejection level The acceptance level The significance level The error in the hypothesis test 5. An increase in a, the level of significance, causes a. An increase in the probability of type I error to occur b. A decrease in the probability of type I error to occur c. No change in the type I or type ll error d. A decrease in the probability of type t error to occur and increase in the probability of type e. None of the above The null hypothesis usually represents: a. b. c. 6. The theory of the researcher would like to prove The preconceived ideas of the researcher The perceptions of sample population

Explanation / Answer

Solution:-
1. option a. Exactly one hypothesis must be true.

2. option b. Decrease.

3. option d. one or two-tailed.

4. option c. the significance level

5. option A. An increase in the probability of the type I error to occur

6. option d. a,b,c option are not satisified  

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