Note: \(\mu\) \(\sigma\)

10.1

9.

Right tailed. Mean.

10.

Left tailed. Probability.

11.

Two tailed. Standard deviation.

12.

Right tailed. Probability.

13.

Left tailed. Mean.

14.

Two tailed. Standard deviation.

15.

Ho: p = .105

H1: p > .105

16

Ho: \(\mu\) = 17072

H1: \(\mu\) =/= 17072

17.

Ho: \(\mu\) = 218600

H1: \(\mu\) < 218600

18

Ho: \(\mu\) = 32

H1: \(\mu\) < 32

19.

Ho: sigma = .7

H1: sigma > .7

20

H0: p = .196

H1: p > .196

21.

Ho: mean = 47.47

H1: mean =/= 47.47

10.2

7.

  1. 2.31
  2. .0104
  3. Reject the null.

9.

  1. -.74
  2. .2296
  3. Do not reject the null.

11.

  1. -1.49
  2. .1362
  3. Do not reject the null.

13.

27% of samples of companies have a sample proportion of .5 or higher, so we don’t reject the null.

15.

  1. z = .65; P = .2578

  2. Do not reject the null.

17.

  1. z = 1.09; P = .0047

  2. Reject the null.

19.

  1. z = 1.09; P = .0001

  2. Reject the null.