Z calc equals a 1 8917 b 1 8917 c 8917 d 0 8917 26

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W14PracticeTest1

25 .   Z CALC equals a
1 . 8917 b -
1 . 8917 c - 0 . 8917 d 0 . 8917
26 .   The lowest level of significance at which the null hypothesis can be rejected is
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27 .   Which of the following statements is false a the null
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28 .   What will be the p-value if these data were used to perform a two - tail test ?
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29 .   A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches . To test this claim against the alternative that the actual proportion of doctors who recommend aspirin is less than 0.90 , a random sample of 100 doctors was selected . Suppose that the test statistic is - 2 . 20 . Can you conclude that H 0 should be rejected at the ( A ) α = 0 . 10 , ( B ) α = 0 . 05 , and ( C ) α = 0 . 01 level of Type I error ? a
( A ) yes ; ( B ) yes ; ( C ) yes b ( A ) no ; ( B ) no ; ( C ) no c ( A ) no ; ( B ) no ; ( C ) yes d ( A ) yes ; ( B ) yes ; ( C ) no
30 .   A survey claims that 9 out of 10 doctors recommend aspirin for their patients with headaches . To test this claim against the alternative that the actual proportion of doctors who recommend aspirin is less than 0.90 , a random sample of 100 doctors was selected . Suppose you reject the null hypothesis . What conclusion can you reach ?
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25.ZCALCequalsa 1.8917b-1.8917c-0.8917d 0.8917
26. The lowest level of significance at which the null hypothesis can berejected is
27. Which of the following statements is falsea the null hypothesis would not be rejected if a 1% probability ofcommitting a Type I error is allowed.
28. What will be the p-value if these data were used to perform a two-tailtest?
1129. A survey claims that 9 out of 10 doctors recommend aspirin for theirpatients with headaches. To test this claim against the alternative thatthe actual proportion of doctors who recommend aspirin is less than0.90, a random sample of 100 doctors was selected. Suppose that thetest statistic is-2.20. Can you conclude thatH0should be rejectedat the (A)α= 0.10, (B)α= 0.05, and (C)α= 0.01 level of Type Ierror?a (A) yes; (B) yes; (C) yesb (A) no; (B) no; (C) noc (A) no; (B) no; (C) yesd (A) yes; (B) yes; (C) no
30. A survey claims that 9 out of 10 doctors recommend aspirin for theirpatients with headaches. To test this claim against the alternative thatthe actual proportion of doctors who recommend aspirin is less than0.90, a random sample of 100 doctors was selected. Suppose you rejectthe null hypothesis. What conclusion can you reach?
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