A teacher is interested to know whether the average number of hours spent by thestudents in watching educational YouTube videos has a significant relationship with theirperformance during the final term examination. He surveyed a group of students on hisclass and tabulated the result. Use 0.05 level of significance.StudentNumber of Hours (X)Exam Scores (Y)A436B220321D4.36E27325219H120523J4.45K4940M526N240334ТOTALX ==What is the value of the slope?

Answered: A teacher is interested to know whether…

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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Using the frequency distribution of scores in an aptitude test of 40 applicants. Draw the boxplot and describe the shape of the distribution. Number of Applicants Scores 50 - 59 60 - 69 70 - 79 80 89 90 - 99 100 - 109 110 - 119 4 8 15 7 At least 89% of the scores are contained in what interval? 32
What value corresponds to the 30th percentile?
1. Provide an example of a data set whose histogram you would expect to be skewed to the left. Explain why you would expect the histogram to be skewed left. 2. A report on US annual income states both the mean and the median. Which measure of center do you think is larger, the mean or the median? Which would better represent US annual income? Explain.
To take a medical test and the doctor tells you that your wellness z-score is 1.86. What percent of the population is in worse health? a. -0.031 b. -0.969 c. 0.969 d. 0.031
Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored 75, 83, and 81 on her three in-class tests and also has a homework average of 88. Her professor calculates the class grade by finding the mean of five grades: three in-class tests, the homework average and the final exam. What is the minimum score Joselyn must earn on the final exam to have a class grade (mean) of 80? A. 67 B. 95 C. 70 D. 73
Among the variables high school percentile, ACT English score, ACT math score, and ACT composite score, identify the one that appears to be the best predictor of cumulative GPA. Explain your reasoning. HSP GPA ENGLISH MATH COMP 75 2.39 24 28 26 63 3.37 21 23 24 77 2.63 16 25 21 66 2.77 16 19 19 86 3.79 29 28 32 96 3.34 23 26 23 64 2.81 13 14 17 78 3.09 18 23 22 63 1.91 22 18 20 51 2.61 19 22 20 65 3.17 17 23 18 94 3.79 26 26 26 54 3.14 23 24 24 76 2.21 23 24 23 71 3.12 21 18 21 74 3.42 33 27 29 80 3.25 24 20 22 55 2.34 25 25 24 61 2.76 21 21 23 66 1.95 22 26 23 89 2.59 22 22 24 90 3.58 27 28 26 86 2.67 24 28 26 43 2.1 17 25 22 82 3.1 19 18 19 47 2.78 23 25 23 92 3.76 21 28 23 57 3.33 27 21 23 90 3.28 32 26 28 55 2.33 24 18 21 56 2.45 23 21 22 67 3.56 24 20 23 96 3.13 29 30 26 63 4 32 25 31 83 3.17 23 25 24 61 3.03 19 25 21 79 2.82 19 25 21 60 2.89 16 20 19 79 3.66 25 32 29 62 2.43 17 18 19 91 3.07 26…
Which is the line of best fit for the data shown in the table? y 2 4 6. 6. 8. 8. 9. 9. O y = 0.72x+3.04 O y = 2.68x + 0.75 O y = 0.75x+ 2.68 O y = 2.68x + 0.70 96 XHN456
Determine whether the data described below are qualitative or quantitative and explain why. The numbers of students in the graduating class at different high schools F4 Choose the correct answer below. O A. The data are quantitative because they consist of counts or measurements. OB. The data are quantitative because they don't measure or count anything. OC. The data are qualitative because they consist of counts or measurements. OD. The data are qualitative because they don't measure or count anything. KA $ 4 R F5 % 5 F6 T A 6 F7 V F8 & 7 11 DELL F9 * 00 8 F10 13 9 F11 O F12 PrtScr 3
Determine whether the following statement is true or false. If it is false, rewrite it as a true statement. The mean is the measure of central tendency most likely to be affected by an outlier. Choose the correct answer below. OA. The statement is true. OB. The statement is false. The median is the measure outlier. f central tendency most likely t OC. The statement is false. The mode is the measure OD. The statement is false. Outliers do not affect any measure of central tendency. affected by an central tendency most likely to be affected by an outlier.
Please show me the solution step by step, thank you in advance
What is the mean of data set
Answer it correctly please. I ll rate accordingly with multiple votes. Explain well and Typed answer only.

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