5.in a lower one-tailed hypothesis test, chosen level of significance = 0.10, sample size = 55, and t-test statistic = -1.76.
Which of the following is the conclusion?
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A) This is a high probability and the conclusion is difficult. |
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B) The null hypothesis is rejected. |
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C) There are many sampling errors. |
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D) The null hypothesis cannot be rejected. |
4.
While checking for linearity by examining the residual plot, the residuals must:
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A) exhibit a linear trend. |
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B) form a parabolic shape. |
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C) be randomly scattered. |
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D) be below the x-axis. |
18.
Which of the following is true about the value of the power of the test?
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A) low value will enable valid conclusions to be made |
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B) small sample sizes generate a low value of the power of the test |
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C) low value will help in detecting small differences in sample statistics |
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D) small sample sizes incur higher costs than large sample sizes |
Answer - 5: p - Value = P(t(54) < -1.76) = 0.042
Since this p - value is less than 0.10, we reject the null hypothesis.
Option B is correct.
Answer - 4: Option A is correct.
Answer - 18: Option B is correct.
5.in a lower one-tailed hypothesis test, chosen level of significance = 0.10, sample size = 55,...
Which of the following is true about the value of the power of the test? A) low value will enable valid conclusions to be made B) small sample sizes generate a low value of the power of the test C) low value will help in detecting small differences in sample statistics D) small sample sizes incur higher costs than large sample sizes
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