At a large university, a mathematics placement exam is administrated to all students.This exam has a history of producing scores with a mean of 77.Samples of 36 males students and 30 female students are randomly selected and the scores are recorded in the file Math Score Placement Exam.

a) Describe each set of data with a histogram, mean and standard deviation. (use the same set of class intervals for both histograms: 50-55-60-65-70-75-80-85-90-95-100)

b) Test the hypothesis "Mean score for all males is 77"

c) Test the hypothesis "Mean score for all female is 77"

d) Do the preceding results show that the mean score for male and females are the same?

e) Test the hypothesis that "There is no difference between the mean scores for male and female students " using a=0.05

f) Do the result from part (e) differ from part (d) Explain.

Subject | Mathematics |

Due By (Pacific Time) | 05/21/2013 04:00 pm |

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