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# Project 6 Math 102 Complete Solution

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This 0 page Study Guide was uploaded by anadar Notetaker on Wednesday November 18, 2015. The Study Guide belongs to a course at a university taught by a professor in Fall. Since its upload, it has received 15 views.

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Date Created: 11/18/15

Project 6 Math 102 1 When a directional hypothesis is being tested and the rejection region is on the right of the mean then the alternate hypothesis must be of the form A Less than C Not equal D Equal 2 As the signi cance level decreases the chances of rejecting increases B False C Cannot determine D Stays the same 3 A directional alternate hypothesis results in a two tail test A True C Cannot determine D Depends on the alpha 4 If samples of size 36 are selected in a one sample hypothesis test using tscores then what would be the degrees of freedom A36 B37 D34 513 In 1996 the mean monthly bill for cell phone users was 4570 with a standard deviation of 22 In 1997 the mean monthly bill for cell phone use for a sample of 41 phone bills was 4240 At the 5 signi cance level is there suf cient evidence to conclude that the cell phone use decreased from 1996 to 1997 Assume the population is a Normal Population 5 What would be the Null Hypothesis B u lt 4570 C u 4570 D u gt 4240 E u gt 4570 6 What is the Alternate Hypothesis A u 4240 B u lt 4570 C u 4570 E u gt 4570 7 What is the given standard deviation A 5 B 4240 C 4570 E 344 8 What is the sample mean outcome A5 B 4240 UI N N E 344 9 What is the DSM Standard deviation A 5 B 4240 C 895 I39 N N 10 What are the degrees of freedom Ingt oobNb l O 11 What is the value of the critical cut off score B 233 C 168 D 168 E 165 12 What is the values of the test statistic B 165 C 168 D 096 E None of the above 13 3 what is the nal decision B Do Not Reject Ha C Reject Ho D Reject Ha E Neither Reject or Do not Reject since it is a tie 1422 An automobile manufacturer claims that their leading compact car averages 32 mpg or more in the city A local police department purchased 16 of these cars The cars were driven exclusively in the city and averaged 282 mpg with a standard deviation of 5 mpg Is the manufacturer39s caim too high Use a 1 Assume the population is a Normal Population 14 What would be the Null Hypothesis Bult32 Cu282 Dugt282 Eu5 15 What is the Alternate Hypothesis Au32 Bult32 Cplt282 Dpgt 282 16 What is the given standard deviation A 25 I C 16 D 141 E8E8 17 What is the sample mean outcome A 35 B 16 C 5 E32 18 What is the DSM Standard deviation A 25 B 16 C 5 D8 19 What is the degrees of freedom A 16 B 31 C4 E There are no degrees of freedom needed for this example

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