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Which type of class provides a means for users to work with the system?

Question 3 (15pts)

To better understand its customers, a music streaming service gathers a random sample of users and collects information including age group and preferred music listening genre. They wonder if age group is related to music listening genre. Determine which Minitab test/feature you would use to answer the question. Explain how you came to your decision. You do not have to conduct the test in this question. [5 points]

An NFL analyst wants to better understand fan loyalty and their support for specific teams. He conducts three surveys from three different regions (Northeast, South, and West) and records which popular NFL team each person supports: Team A, Team B, or Team C. The counted data can be found in the sheet: Football Conduct the appropriate hypothesis test to determine if the proportions of support are the same across the three regions? Show the complete test process as taught in the lessons and use alpha = 0.05. In the Sample Step, you should Copy table and Paste to bring in the Minitab test output as text; inserting images will not work; if you have difficulty pasting the output, don’t stress… just report important values in the Results Step]

A researcher wants to know if the distribution of Thanksgiving meal choices from a sample of city residents matches the percentages determined by a national survey. The counted data can be found in the sheet: Thanksgiving Meal Choice Counts Percentages Turkey 90 54% Ham 60 32% Vegetarian 40 11% Other 10 3% Conduct the appropriate hypothesis test to determine if the Thanksgiving meal choices matches the percentages determined by a national survey. Show the complete test process as taught in the lessons and use alpha = 0.05. In the Sample Step, you should Copy table and Paste to bring in the Minitab test output as text; inserting images will not work; if you have difficulty pasting the output, don’t stress… just report important values in the Results Step]

A study was done to determine whether field mice found in a specific region of the country have preference for the habitat where they tend to live. This region was divided into four habitat types. The proportion of total acreage in each of the habitat types was determined for the study area. Using an eco-friendly catch and release method, mice were trapped and released in each of the four habitat areas. The results are given in the table. Which is the most appropriate test to study these data?

A retail analyst conducts a survey in two large cities (Cleveland & Cincinnati), asking a random sample of shoppers in each city about their shopping preference (online vs in store). In Cleveland, 200 out of 500 respondents prefer online shopping, while in Cincinnati, 250 out of 600 respondents prefer online shopping. Conduct the appropriate hypothesis test to determine if Cleveland has the statistically smaller proportion of shoppers that prefer online shopping? Show the complete test process as taught in the lessons and use alpha = 0.05. In the Sample Step, you should Copy table and Paste to bring in the Minitab test output as text; inserting images will not work; if you have difficulty pasting the output, don’t stress… just report important values in the Results Step]

A researcher wants to compare the distribution of favorite movie genres among students from three different universities (University A, University B, and University C). She collects data from a sample of students at each university, recording each student’s favorite genre: action, drama, comedy, or horror. Which statistical test should be used to study these data?

A study was conducted to determine the effectiveness of varying amounts of vitamin C in reducing the number of common colds. A survey of 450 people provided the following information and Chi-square test results: What conclusion can be made based on the above information?

A career counselor wants to compare the effectiveness of two different resume formats – a traditional format (Format A) and a modern format (Format B). Two groups of job seekers were randomly sampled and data was collected on the interview callbacks received from both formats. The differences will be calculated as p1 – p2 where… p1 = the population proportion of interview callbacks using resume Format A (traditional)p2 = the population proportion of interview callbacks using resume Format B (modern) A 95% confidence interval on the differences in proportions was constructed and the results are below:What can we conclude based on the 95% confidence interval?