E-Text Week Three

RUNNING HEADER: E-TEXT

E-TEXT

Name

RES 342

E-TEXT

10.30

A. H0:equalsπ1 = π2 Versus H1: π1 >π2

B. Z > 2.326 and to reject null hypothesis.

C. ρ1 =.0001304, ρ2 =.0000296 and Z =2.961

D. This would be a reject null hypothesis. The sample is a significant of the difference between the two proportions.

E. P-Value is .0015. This type of result is not by chance.

F. Yes, the severe consequences of the accidents are small to make the difference.

G. -------------------------------------------------

The assumption is questionable due to the 4 only accidents that were observed with those who were the yellow fire trucks.

10.44

A. H0:π1> = π2

H1:π1< π2

B. Z = -3.987 P =.0, The null hypothesis is a reject

C. This is a normal assumption.

D. Yes, the important is the differences.

E. -------------------------------------------------

The physicians are to be asked about the habits, weight, nutrition, etc.

10.46

A. H0:μ2 versus H1: μ1> μ2

B. T =1.221, P = .1141 rounded

C. The sample is not statistically significant. They would know that 8 points makes an important difference.

D. Yes, the standard deciations are similar.

E. F equals .620, FL equals .488 and FR equals 2.05. It fails to reject the null hypothesis. The variances are not different because of lack of evidence.

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So 384.16/620.01 equals .6196

11.24

Varmints mean damage.

1290 +1390+1400+1850+950 / 5 equals to 1376 the standard deviation is 321.83

Weasel mean damage.

1090+1830+2100+1920+1250 / 5 equals to 1638 the standard deviation is 441.78 rounded.

P value is .4188, F equals to .936

Significance is .5

This cannot be a reject to the null hypothesis since it is an equal means. The p passes .05 and there are no differences. This is a result that clearly agrees with the Levenes test which the p value is .715. And they overlap the confidence...