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

10.1

9.

right tailed,\(\mu\)

10.

left tailed, p

11.

two tailed, \(\sigma\)

12.

right tailed, p

13.

left tailed,\(\mu\)

14.

two tailed, \(\sigma\)

15.

Ho: p=.105

H1: p>.105

17.

Ho: \(\mu\) = $218,000

H1: \(\mu\) < $218,000

19.

Ho: \(\sigma\) = 0.7 H1: \(\sigma\) < 0.7

21.

Ho: \(\mu\) = $47.47

H1: \(\mu\) ≠ $47.47

10.2

7.

  1. z=2.31
  2. p=.0104
  3. reject the null

9.

a)-.074 b) .2296 c) do not reject the null

11.

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

13.

you would not reject the null because the sample proportion is higher than the population proportion

15.

  1. p=.2578

  2. do not reject the null

17.

  1. p=.1379

  2. do not reject the null

19.

  1. p=.0047

  2. reject the null