The following are the ratings of males by females in an experiment involving speed dating. Use the given data toconstruct a boxplot and identify the 5-number summary.2.02.5 3.5 4.04.04.0 5.05.05.05.05.06.06.56.56.56.57.57.58.08.0.... .The 5-number summary isand(Use ascending order. Type integers or decimals. Do not round.)Which boxplot below represents the data?O A.В.2410410RatingsRatingsD.246.810246.10RatingsRatings

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The following are the ratings of males by females in an experiment involving speed dating. Use the given data to construct a boxplot and identify the 5-number summary. 3.0 3.0 4.0 4.0 4.0 4.0 5.0 5.0 5.0 5.0 5.0 6.0 6.5 6.5 6.5 6.5 7.0 7.0 8.0 8.5 The 5-number summary is. OO, and (Use ascending order. Type integers or decimals. Do not round.) Which boxplot below represents the data? O A. В. 0. 4 6. 8 10 E 10 E 8. Ratings Ratings С. D. 2 9. 8 10 0. 2 4 6. 8. 10 E Ratings Ratings
The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a "flipped" classroom. Complete parts (a) through (c) below. Traditional 71.8 68.6 80.5 67.6 86.0 77.2 56.8 O 81.2 82.0 71.0 64.1 70.6 60.4 Flipped 76,5 70.6 62.7 71.3 78,2 92.1 79.9 77.7 82.4 69.6 92.2 78.9 76.1 (b) Which course has more dispersion in exam scores using the sample standard deviation as the measure of dispersion? The traditional course has a standard deviation of while the "flipped" course has a standard deviation of The course has more dispersion.
The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a "flipped" classroom. Complete parts (a) through (c) below. Traditional 71.0 68.3 78.8 68.2 86.4 77.4 56.8 80.8 80.8 72.4 64.2 70.6 60.7 Flipped 75.5 70.5 64.3 71.5 78.0 93.2 79.5 76.2 82.4 70.4 91.6 77.2 76.9 The traditional course has a standard deviation of, while the "flipped" course has standard deviation of The traditional course has more dispersion. (Round to three decimal places as needed.)
An instructor in a statistics course set a final exami- nation and also required the students to do a data analysis project. For a random sample of 10 students, the scores obtained are shown in the table. Find the sample correlation between the examination and proj- ect scores. Examination 81 62 74 78 93 69 72 83 90 84 Project 76 71 69 76 87 62 80 75 92 79
a. Write a table with observations for these samples. b. Using the table, explain (calculate) where the S=1.22 comes from c. Conduct a two-tailed comparison of the two groups with a=.05. Please remember to state your hypothesis. Now look at: d. Write a table with observations for these samples. e. Using the table, explain (calculate) where the S=6.65 comes from f. Conduct a two-tailed comparison of the two groups with a=.05. g. What changed between [a-c] and [d-f]? what impact did it have?
A marketer is examining the effectiveness of color scheme on the willingness to subscribe to a user's social media account. She creates three different profiles using three different color schemes: red, blue, and green. Twenty participants are asked to evaluate how much they like each of the profiles using a scale of 1 (do not like) to 5 (like a lot). What statistical procedure should you use to analyze these data? O independent groups t test O correlated groups t test O One Way Between Subjects ANOVA O One Way Repeated Measures ANOVA
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The following are the ratings of males by females in an experiment involving speed dating. Use the given data to construct a boxplot and identify the 5-number summary. 3.0 4.0 5.0 6.0 7.0 7.0 8.0 8.0 8.0 8.0 8.0 9.0 9.5 9.5 9.5 9.5 10.0 10.0 10.0 10.0 The 5-number summary is nothing, nothing, nothing, nothing, and nothing. (Use ascending order. Type integers or decimals. Do not round.)
Last school year, the student body of a local university consisted of 35% freshmen, 24% sophomores, 26% juniors, and 15% seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification. Freshmen 90 Sophomores 60 Juniors 90 Seniors 60 We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year. The calculated value for the test statistic equals a. 0.5444 b. 2.789 c. 10.989 d. 15.231
The city of Hampton is surveying households to see if the number of cats per household has changed over the past decade. The last known average of cats per household was 1.08. What statistical procedure should you use to analyze these data? O one sample z test Oone sample t test O correlated groups t test O independent groups t test
Need help with a review statistics question
The U.S. National Center for Health Statistics complies birth statistics and publishes the results in vital statistics of the United States. The Center has historically believed that the mean of all newborns in the U.S. has been no less than 6.95 pounds. A sample of babies is selected so that the center can revise its belief. The following birth weights, in pounds are recorded: 7.4, 6.0, 8.6, 4.5, 2.0, 7.9, 4.0, 2.6, 5.9, 7.3, 7.3, 7.0, 6.3, 8.1, 7.1, 7.3, 6.6, 5.2, 9.8, 8.0, 10.9, 6.5, 3.8, 5.0, 8.0 a). At 5% level of significance, do these data provide sufficient evidence to refute the Center’s belief? Your conclusion must be in terms of the P-Value as well as setting up a Rejection Region. You must show all necessary work. b). Which statistical distribution should be applied in this situation and why? Explain carefully.

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