A major DVD rental chain is considering opening a new store in an area

1.A major DVD rental chain is considering opening a new store in an area that currently does not have any such stores. The chain will open if there is evidence that more than 5,000 of the 20,000 households in the area are equipped with DVD players. It conducts a telephone poll of 300 randomly selected households in the area and finds that 96 have DVD players. The p-value associated with the test statistic in this problem is approximately equal to ________.选项： A:0.0100; B:0.0051; C:0.0026; D:0.0013

2.A major DVD rental chain is considering opening a new store in an area that currently does not have any such stores. The chain will open if there is evidence that more than 5,000 of the 20,000 households in the area are equipped with DVD players. It conducts a telephone poll of 300 randomly selected households in the area and finds that 96 have DVD players. The p-value associated with the test statistic in this problem is approximately equal to ________. 选项： A、0.0100 B、0.0051 C、0.0026 D、0.0013

3.A major DVD rental chain is considering opening a new store in an area that currently does not have any such stores. The chain will open if there is evidence that more than 5,000 of the 20,000 households in the area are equipped with DVD players. It conducts a telephone poll of 300 randomly selected households in the area and finds that 96 have DVD players. The value of the test statistic in this problem is approximately equal to ________. 选项： A、2.80 B、2.60 C、1.94 D、1.30

4.A major DVD rental chain is considering opening a new store in an area that currently does not have any such stores. The chain will open if there is evidence that more than 5,000 of the 20,000 households in the area are equipped with DVD players. It conducts a telephone poll of 300 randomly selected households in the area and finds that 96 have DVD players. The value of the test statistic in this problem is approximately equal to ________. 选项： A、2.80 B、2.60 C、1.84 D、1.30

5.A major videocassette rental chain is considering opening a new store in an area that currently does not have any such stores. The chain will open if there is evidence that more than 5,000 of the 20,000 households in the area are equipped with videocassette recorders (VCRs). It conducts a telephone poll of 300 randomly selected households in the area and finds that 96 have VCRs. The p-value associated with the test statistic in this problem is approximately equal to: 选项： A、0.0026. B、0.0100. C、0.0051. D、0.0013.

6.A major videocassette rental chain is considering opening a new store in an area that currently does not have any such stores. The chain will open if there is evidence that more than 5,000 of the 20,000 households in the area are equipped with videocassette recorders (VCRs). It conducts a telephone poll of 300 randomly selected households in the area and finds that 96 have VCRs. The p-value associated with the test statistic in this problem is approximately equal to:选项： A:0.0026.; B:0.0100.; C:0.0051.; D:0.0013.

7.A
major videocassette rental chain is considering opening a new store
in an area that currently does not have any such stores. The chain
will open if there is evidence that more than 5,000 of the 20,000
households in the area are equipped with videocassette recorders
(). It conducts a telephone poll of 300 randomly selected
households in the area and finds that 96 have VCRs. The p-value
associated with the test statistic in this problem is approximately
equal to:() 选项： A、0.0100. B、0.0051. C、0.0026. D、0.0013.

8.The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to determine whether or not the mean age of her customers is greater than 30. If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. The appropriate hypotheses to test are: 选项： A、H0: μ ≥ 30 versus H1: μ < 30. B、H0: μ ≤ 30 versus H1: μ > 30. C、H0: X(bar) ≥ 30 versus H1: X(bar) < 30. D、H0: X(bar) ≤ 30 versus H1: X(bar)> 30.

9.The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to determine whether or not the mean age of her customers is greater than If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. The appropriate hypotheses to test are: 选项： A、H0: μ ≥ 30 versus H1: μ < 30. B、H0: μ ≤ 30 versus H1: μ > 30. C、H0: ≥ 30 versus H1: < 30. D、H0: ≤ 30 versus H1: > 30.

10.The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to determine whether or not the mean age of her customers is greater than If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. The appropriate hypotheses to test are: 选项： A、H0: μ ≥ 30 versus H1: μ < 30. B、H0: μ ≤ 30 versus H1: μ > 30. C、H0: ≥ 30 versus H1: < 30. D、H0: ≤ 30 versus H1: > 30.

11.When testing H0: π1 - π2 = 0 versus H1: π1 - π2 ≠ 0, the observed value of the Z test statistic was found to be -2.13. The p-value for this test is ________. 选项： A、 0.0166 B、0.0332 C、 0.9668 D、 0.9834

12.Hilda believes that the average return on equity in the consumer durables industry is greater than 8%. What is the null (H0) and the alternative (Ha) hypotheses for this study? 选项： A: H0: M = 0.08 versus Ha: M ≠ 0.08 B: H0: M ≥ 0.08 versus Ha: M < 0.08 C: H0: M ≤ 0.08 versus Ha: M > 0.08

13.How large is Pit No. 1 of the Terracotta Army? 选项： A:With an area of more than 14,000 square meters and is the largest pit. B:With an area of more than 10,000 square meters. C:With an area of more than 5,000 square meters. D:Less than 5,000 square meters.

14.Suppose we wish to test H0: μ ≤ 47 versus H1: μ > 47. What will result if we conclude that the mean is greater than 47 when its true value is really 52 选项： A、We have made a Type I error. B、We have made a Type II error. C、We have made a correct decision. D、None of the above are correct.

15.Suppose we wish to test H0: μ ≤ 47 versus H1: μ > 47. What will result if we conclude that the mean is greater than 47 when its true value is really 52? 选项： A、We have made a Type I error. B、 We have made a Type II error. C、We have made a correct decision. D、None of the above are correct.

16.Suppose we wish to test H0: μ ≤ 47 versus H1: μ > 47. What will result if we conclude that the mean is greater than 47 when its true value is really 52? 选项： A:We have made a Type I error.; B: We have made a Type II error.; C:We have made a correct decision.; D:None of the above are correct.

17.下列假设检验中属于右侧检验的是() 选项： A、H0:μ=µ0;H1:μ≠µ0; B、H0:μ≥µ0;H1:μ C、H0:μ≤µ0;H1:μ>µ0; D、H0:μ>µ0;H1:μ≤µ0

18.下列假设检验中,属于左侧检验的是选项：A、H0:μ=μ0,H1:μ≠μ0 B、H0:μ≥μ0,H1:μ<μ0 C、H0:μ≤μ0,H1:μ>μ0 D、H0:μ>μ0,H1:μ≤μ0

19.下列假设检验中属于右侧检验的是选项： A:H0：μ=μ0；H1：μ≠μ0 B:H0：μ≥μ0；H1：μ＜μ0 C:H0：μ≤μ0；H1：μ＞μ0 D:H0：μ＞μ0；H1：μ≤μ0

20.下列假设检验中属于右侧检验的是() A: H0:μ=µ0;H1:μ≠µ0; B: H0:μ≥µ0;H1:μ C: H0:μ≤µ0;H1:μ>µ0; D: H0:μ>µ0;H1:μ≤µ0

21.下列假设检验中属于右侧检验的是选项：A、H0:μ=μ0,H1:μ≠μ0 B、H0:μ≥μ0,H1:μ C、H0:μ≤μ0,H1:μ>μ0 D、H0:μ>μ0,H1:μ≤μ0

22.差别有统计学意义的含义是（）选项： A:拒绝H0，接受H1 B:接受H0，拒绝H1 C:不拒绝H0，接受H1 D:接受H0，不拒绝H1

23.下列假设检验中,属于左侧检验的是选项：A、H0:μ=μ0,H1:μ≠μ0 B、H0:μ≥μ0,H1:μ C、H0:μ≤μ0,H1:μ>μ0 D、H0:μ>μ0,H1:μ≤μ0

24.指出下列假设检验中，（）属于右侧检验。选项： A:H0:μ=μ0，H1：μ≠μ0 B:H0：μ≥μ0，H1：μ＜μ0 C:H0:μ≤μ0，H1：μ＞μ0 D:.H0：μ＞μ0，H1：μ≤μ0

25.下列假设检验中属于右侧检验的是() 选项： A、H0:μ=μ0;H1:μ≠μ0 B、 H0:μ≥μ0;H1:μ<;μ0 C、 H0:μ≤μ0;H1:μ>;μ0 D、 H0:μ>;μ0;H1:μ≤μ0

26.在假设检验中，H0为原假设，H1为对立假设，则第二类错误指的是选项： A:H1真，接受H0; B:H1不真，拒绝H0; C:H1真，不接受H0; D:H0真，接受H0

27.下列假设检验中属于右侧检验的是(　　) 选项： A: H0:μ=μ0；H1：μ＜μ≠μ0 B: H0≥μ0；H1：μ<μ0 C: H0:μ≤μ0；H1：μ＞μ0 D: H0：μ＞μ0；H1：μ≤μ0