Description of this paper

Question 1: A random sample of male college baseball players and-(Answered)

Description

Question

Question 1:

A random sample of male college baseball players and a random sample of male college soccer players were obtained independently and weighted. The distributions of both data sets suggest that the population distributions are roughly Normal. Test whether there is a significant difference between their mean weights, using a significance level of 10%.

(a) State the null and alternative hypothesis. Also specify the type of test.

????????????????????????

??????????????????????????????????????????? Ho:

??????????????????????????????????????????? Ha:

(b) Insert the table ?Independent Samples Test?

(c) State the p-value from table from (b). Compare with the significance level

(d) Make the conclusion. Explain whether we have strong evidence to support/reject the claim.

Question 2:

Brain size for 20 random women and 20 random men was obtained and is reported in the table (in hundreds of thousands of pixels shown in an MRI). Test the hypothesis that men tend to have larger brains than women at the 5% level.

(a) State the null and alternative hypothesis. Also specify the type of test.

????????????????????????

??????????????????????????????????????????? Ho:

??????????????????????????????????????????? Ha:

(b) Insert the table ?Independent Samples Test?

(c) State the p-value from table from (b). Compare with the significance level

(d) Make the conclusion. Explain whether we have strong evidence to support/reject the claim.

Question 3:

The prices of a sample of books at UCSB were obtained. Then the prices of books for the same subjects (at the same level) were obtained for CSUN. Assume that the distribution of differences is Normal enough to proceed, and assume that the sampling was random. Test the hypothesis that the population means are different, using a significance level of 5%.

(a) State the null and alternative hypothesis. Also specify the type of test.

????????????????????????

??????????????????????????????????????????? Ho:

? ??????????????????????????????????????????Ha:

(b) Insert the table ?Paired Samples Test?

(c) State the p-value from table from (b). Compare with the significance level

(d) Make the conclusion. Explain whether we have strong evidence to support/reject the claim.

Baseball Soccer

190

165

200

190

187

185

182

187

192

183

205

189

185

170

177

182

207

172

225

180

230

167

195

190

169

185

186

156

210

168

198

173

180

158

182

150

193

172

200

180

195

184

182

174

193

190

190

156

186

163

Female Male

8.2

9.5

9.3

9.9

8.5

8.3

8.6

8.8

8.7

8.5

8.1

7.9

8.3

8

7.9

8.7

8.6

8.3

9.5

8.9

10

10.4

9.7

9

9.6

10.8

9.2

9.5

8.9

8.9

9.1

9.6

9.4

10.6

9.5

10

8.8

9.5

9.3

9.4

Subject

UCSB

CSUN

Algebra

76.35

112.5

Anthro

86

70.5

Art

25.95

83

Biology

115.28

88.75

Chem

128.35

140.25

Chicano

18.95

12

Commun

37.5

62.25

Econ

87.95

126

Educ

35.95

32

English

65.95

47

Geog

83

96.75

Geol

87.65

94.5

Health

29.95

56.5

History

29.95

48

Human

45

82

Japanese

45

95.75

Journalism

44.95

84.75

Music

29.95

30.25

Phil

60.3

66.25

Physics

106.65

137.75

PolySci

87.95

77.75

Soc

74.75

87

Theatre

24.95

33

Women

35.95

48.75

Paper#9210221 | Written in 27-Jul-2016

Price : \$22