Minitab questions with statistics #4

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MBA 501A – [STATISTICS]

ASSIGNMENT 4

INSTRUCTIONS: . The total number of points possible is 50. Please note that point allocation varies per question. Use the Help feature in MINITAB 16 to read descriptions for the data sets so that you can make meaningful comments.

[10 pts] 1. Use the data set MBASURVEY.MTW in the student 14 folder.

a) Perform the Chi Square test for independence to determine whether Gender and Highest Degree are related. Use α = 0.05. Explain your results.

[10 pts] 2. Use the data set PULSEA.MTW in the student 14 folder.

a) Perform the Chi Square test for independence to determine whether smoking status and usual level of activity are related. Use α = 0.05. Explain your results.

[30 pts] 3. Use the data set SCHOOLSDATA.MTW in the Student14 folder.

Is average SAT verbal score (SATV) significant in explaining the percent of students going to college (%College) at ? Explain your conclusion. [10 pts]

b) What is the 95% confidence interval for the percent of students going to college if the average SAT verbal score is 500? Interpret. [5 pts]

c) What is the 95% prediction interval for the percent of students going to college if the average SAT verbal score is 500? Interpret. [5 pts]

Is cost per pupil significant in explaining the percent of students going to college (%College) at ? Explain your conclusion. [10 pts]