1. Open the file Spring17Data.MTW. This file contains data that were collected f
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Question
1. Open the file Spring17Data.MTW. This file contains data that were collected from World Campus STAT 200 students at the beginning of the Spring 2017 semester. Use this file to answer the following questions. [25 points]
A. Construct a contingency table for biological sex and dieting.
B. What proportion of students who completed this survey were male?
C. What proportion of students who completed this survey were dieting?
D. What proportion of males in this sample were dieting?
E. What proportion of this sample was males who were dieting?
F. Construct a clustered bar chart to compare the number of students dieting by biological sex.
G. If we were to randomly select one student from this sample, what are the odds that the student was female?
2. This question set also uses the data in Spring17Data.MTW. Use Minitab Express to answer the following questions. Don’t forget to include all relevant output. [35 points]
A. Is weight a categorical or quantitative variable?
B. Make graph to display the variable of weight.
C. Using your graph from part B, describe the shape of the distribution of weight.
D. Use Minitab Express to compute the mean, median, mode, standard deviation, range, and interquartile range for the variable of weight.
E. Use Minitab Express to take a simple random sample of 20 individual’s weights, and then find the mean and standard deviation for that sample.
F. Repeat part (E) two more times.
G. Were your results in parts (E) and (F) the same each time? Why or why not?
(You will need AT LEAST three sentences to completely answer this question)
Explanation / Answer
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