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Do college students enjoy playing sports less than watching sports? A researcher randomly selected ten college students and asked them to rate playing sports and watching sports on a scale from 1 to 10 with 1
Playing vs. Watching Sports Data
Play | Watch |
---|---|
7 | 8 |
10 | 10 |
2 | 4 |
6 | 4 |
2 | 6 |
1 | 2 |
1 | 4 |
5 | 6 |
1 | 2 |
7 | 9 |
Assume a each population is
For this study, what sampling distribution should be used? Select an answer standard normal distribution binomial distribution uniform distribution Student t distribution
- The null and alternative hypotheses would be:
H0:H0: Select an answer μd μ1-μ2 μ p1-p2 p Select an answer = < > ≠ (please enter a decimal)
H1:H1: Select an answer μ p1-p2 p μd μ1-μ2 Select an answer < > = ≠ (Please enter a decimal)
- The test statistic? t z = (please show your answer to 3 decimal places.)
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- Make a graphical display of the following data sets, choosing nay type of display that you feel is appropriate. Explain your choice of display and discuss any interesting features in the data. The following table shows the perscentages of American men and women who had never been married in selected years since 1960. Percentages of Adults Who Never Married Year Women Men 1960 19.0% 25.3% 1980 22.5% 29.6% 2000 21.5% 31.3% 2015 28.9% 34.8%arrow_forwardThe college physical education department offered an advanced first aid course last summer. The scores on the comprehensive final exam were normally distributed, and the z-scores for some of the students are shown below. Robert 1.24 Juan 1.66 Haley −1.84 Joel 0.00 Jan −0.84 Linda 1.68 Which of these students scored above the mean? (Select all that apply.) Which of these students scored on the mean? (Select all that apply.) Which of these students scored below the mean? (Select all that apply.) If the mean score was μ = 140 with standard deviation σ = 15, what was the final exam score for each student?arrow_forwardPlease help by showing all workings and explanationsarrow_forward
- Consider the following ordered data. 6 9 9 10 11 11 12 13 14 Find the low, Q1, median, Q3, and high.arrow_forwardConsider the following ordered data. 4 7 7 8 9 9 10 11 12 (a) Find the low, Q1, median, Q3, and high.arrow_forwardEstimate the most likely degree of correlation for the scatterplot Options: a. 0 b. .85 c. -.90 d. -.05arrow_forward
- The popularity of computer, video, online, and virtual reality games has raised concerns that they might negatively affect youth. The data in this exercise are based on a recent survey of 14- to 18-year-olds in Connecticut high schools. The table displays the grade distributions of boys who have and have not played video games. Played games Never played games A's and B's: C's: A's and B's D's and F's: 744 210 Grade Average C's 445 140 D's and F's Find the conditional distribution of grades (the response variable) for nonplayers. Give your answers to two decimal places. 197 84 % % %arrow_forwardgrade 12 data management. question : What is the weighted average score for Larry?arrow_forwardSection 3.1, question 15arrow_forward
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