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

10.1

9.

Right Tailed, mean.

10.

Left Tailed. Probablity.

11.

Two tailed, SD.

12.

Right tailed probability.

13.

Left tailed, mean.

14.

Two tailed. SD.

15.

Ho: p=0.105

H1:p>0.105

16.

Ho: mean = 17072

H1: mean (doesn’t equal) 17072

17.

Ho: mean = 218600

H1: mean < 218600

18.

Ho: mean = 32

H1: mean < 32

19.

Ho: sigma= 0.7

H1: sigma < 0.7

20.

Ho: p= 0.196

H1: p> 0.196

21.

Ho: mean = 47.47

H1: mean (doesn’t equal) = 47.47

10.2

7.

  1. z0= 2.31 > z.05. So reject null hypothesis.
  2. 0.0104
  3. Reject the Null Hypothesis. There is statistical significance to do so.

9.

  1. z0 = -0.74 > -z 0.10 So do not reject the null hypothesis.
  2. 0.2296
  3. Do not reject null hypothesis. There is not enough statistical siginificance to do so.

11.

  1. z0 = -1.49, between -z0.025 and z0.025. Do not reject.
  2. 0.1362.
  3. Do not reject the null hypothesis. There is not enough statistical significance to do so.

13.

27/100 samples will have a sample proportion as large or larger than the population. Therefore, do not reject the null hypothesis.

15.

  1. z0 = 0.65 < z0.01. p value = 0.2578.

  2. Do not reject the null hypothesis.

17.

  1. z0 = 1.09 < z0.05. p value = 0.0047.

  2. Sufficent evidence to reject the null hypothesis.

19.

  1. z0 = -11.32 < z0.01. p value = 0.0001.

  2. Reject the null hypothesis.