This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: students who are sophomores is .1, the proportions of students who are juniors is .3 and the proportions of students who are seniors is .4. [pfresh=.2; psoph=.1 pjr=.3; psr=.4]. Use .05 significance level and the following data on enrollments: group number fresh 15 soph 15 jr 25 sr 45 6 [10] Test the null hypothesis that the mean time to find parking is equal to 15 minutes. A sample of 60 students had a mean time of 13.5 minutes and a standard deviation of 4 minutes. . Use .05 significance level and a two tail test. 7 [15] Test the null hypothesis that the mean for run students is less than or equal to the mean for runb. Use .05 significance level, a one tail test and the following data: Run Runb Mean 45 42 Variance 25 20 number 60 50...
View
Full Document
 Spring '10
 VANDERHOFF
 Statistics, Standard Deviation, Variance, Global Warming, Harshad number, Statistical power, Ronald Fisher

Click to edit the document details