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    Hypothesis testing : Multiple choice questions

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    In chronological order, state the 5 steps of the standard procedure for hypothesis testing:
    1.
    2.
    3.
    4.
    5.
    Except as directed, check the single best answer.
    6. Which of the following could be a valid null hypotheses?
    A. &#956; &#8805; 27.9 B. &#956; < 27.9
    7. Which of the following can be rejected by a statistical test?
    A. Null hypothesis B. Alternate hypothesis
    8. If sample size is 20, which can be used to test a hypothesis about the mean?
    A. Z B. t C. Either
    9. If sample size is 30, which can be used to test a hypothesis about the mean?
    A. Z B. t C. Either
    10. The level of significance is the probability of:
    A. Rejecting a true null hypothesis B. Accepting a false null hypothesis
    11. The probability of Type I error is denoted by which Greek letter?
    A. &#956; B. &#963; C. &#945; D. &#946;
    12. Which kind of test is made for the null hypothesis "&#956; = 27.9"?
    ____ A. One-tailed test ____ B. Two-tailed test
    13. In a two-tailed test, using Z as test statistic, if the significance level is 0.05, how much probability is in each of the two tails?
    A. 1.0% B. 2.5% C. 5.0% D. 7.5%
    We sample 100 light bulbs from a manufacturing plant to test the null hypothesis that the mean is 1,200 hours, using a significance level of 0.05. The sample average is 1,150 hours and the standard deviation is 500 hours.
    14. What is the null hypothesis?
    A. &#956; = 1,200 hrs B. &#956; &#8800; 1,200 hrs C. &#956; < 1,200 hrs D. &#956; > 1,200 hrs
    15. What is the alternate hypothesis?
    A. &#956; = 1,200 hrs B. &#956; &#8800; 1,200 hrs C. &#956; < 1,200 hrs D. &#956; > 1,200 hrs
    16. What is the value of &#945;?
    A. 0.010 B. 0.025 C. 0.050 D. Unknown
    17. Which statistic can properly be used in this hypothesis test?
    A. Z B. t C. Either D. Neither
    18. What are the approximate critical values of the test statistic? Indicate two values.
    A. -3.0 B. -2.0 C. -1.0 D. +1.0 E. +2.0 F. +3.0
    19. What is the value of the test statistic computed from the sample's descriptive statistics?
    A. -3.0 B. -2.0 C. -1.0 D. +1.0 E. +2.0 F. +3.0
    20. Is the null hypothesis rejected?
    A. Yes B. No

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    https://brainmass.com/statistics/hypothesis-testing/hypothesis-testing-multiple-choice-questions-145797

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    The solution gives the answers of multiple choice question from hypothesis testing .

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