MM207FinalProject

# 1244 0122 mary 3632 37927 00734 jonathan 42 years

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Jonathan = 42-40.48/12.44 = 0.122 Mary = 36.32-37/9.27 =-0.0734 Jonathan (42 years male) is farther from the average (37.1197 years) age in male group as compared to Mary (37 years Female (Average age is 37.1197 Years) Statcrunch Output: Summary statistics:

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MM207 Final Project Summary statistics for Q2 How old are you?: Group by: Gender 4. If you were to randomly select a student from the set of students who have completed the survey, what is the probability that you would select a male? Explain your answer. The probability that, a male student is selected is 41/233 = 0.176 Frequency table results for Gender: 5. Using the sample of MM207 students: a) What is the probability of randomly selecting a person who is conservative and then selecting from that group someone who is a nursing major? The required probability is 17/56 = 0.3036 Gender n Mean Variance Std. Dev. Std. Err. Median Range Min Max Q1 Q3 Female 192 37.119793 97.43584 9.870959 0.7123751 36 44 21 65 29 44.5 Male 41 38.658535 147.28049 12.135918 1.8953118 35 38 24 62 29 49 Gender Frequency Relative Frequency Female 192 0.82403433 Male 41 0.17596567
MM207 Final Project Contingency table results: Rows: Q9 What is your college major? Columns: Q13 What best describes your political philosophy? b) What is the probability of randomly selecting a liberal or a male? The required probability is 85/227 = 0.3744 Contingency table results: Rows: Q13 What best describes your political philosophy? Columns: Gender 6. Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 25 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends or more? The estimated sample standard deviatiuon will be 90.57/sqrt(25) = 90.57/5=18.114, Hence, required probability is 0.21171 Statcrunch screenshot. Conservative Liberal Moderate Total Business 4 2 13 19 IT 1 3 6 10 Legal Studies 6 2 2 10 Nursing 17 12 32 61 Other 6 8 17 31 Psychology 22 26 49 97 Total 56 53 119 228 Female Male Total Conservative 41 15 56 Liberal 44 9 53 Moderate 101 17 118 Total 186 41 227

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MM207 Final Project 7. Select a random sample of 35 student responses to question 6, "How many credit hours are you taking this term?" Using the information from this sample, and assuming that our data set is a random sample of all Kaplan statistics students, estimate the average number of credit hours that all Kaplan statistics students are taking this term using a 95% level of confidence. Be sure to show the data from your sample and the data to support your estimate.
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