The following table shows students’ test scores on the first two tests in an introductory statistics class. Statistics Test Scores First test, x 7575 7676 9191 6565 4848 7575 8585 6262 5151 8080 9494 4343 Second test, y 6969 8888 101101 6363 5959 8282 8686 6767 5656 8484 105105 4444Copy Data Step 1 of 2 : Find an equation of the least-squares regression line. Round your answer to three decimal places, if necessary.

The following table shows students’ test scores on the first two tests in an introductory statistics class. Statistics Test Scores First test, x 7575 7676 9191 6565 4848 7575 8585 6262 5151 8080 9494 4343 Second test, y 6969 8888 101101 6363 5959 8282 8686 6767 5656 8484 105105 4444Copy Data Step 1 of 2 : Find an equation of the least-squares regression line. Round your answer to three decimal places, if necessary.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

First test, x	7575	7676	9191	6565	4848	7575	8585	6262	5151	8080	9494	4343
Second test, y	6969	8888	101101	6363	5959	8282	8686	6767	5656	8484	105105	4444

Similar questions

Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follows. # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 4 1 10 2 8 3 2 4 1 (a) Construct a histogram of the data. (b) Complete the columns of the chart. (Enter exact numbers as integers, fractions, or decimals.) # of movies Frequency Relative Frequency Cumulative Relative Frequency 0 4 1 10 2 8 3 2 4 1
Example 51. Compute D; of the following data: 13, 14, 7, 12, 9, 17, 8, 10, 6, 15, 18, 21, 20
None
Sixty students were given a history exam. Their scores are shown below, sorted from smallest to largest. 21 32 36 37 37 37 38 39 40 40 41 42 44 46 48 50 53 65 72 72 72 72 73 74 74 75 75 76 76 76 76 77 77 77 77 78 79 79 80 80 80 81 81 82 82 82 82 83 83 85 85 86 86 88 88 89 91 91 93 94 1) Compute the 5-number summary for this data: 12,_,_,_,94
In order to compare two statistics textbooks, Mr.Marin recommends one book to one class and another book to another class. At the end of the year the classes are each examined; the results out of 100 marks are detailed below.Textbook 144 52 95 76 13 94 83 72 55 81 22 25 64 72 35 48 56 59 84 98 84 21 35 69 28Textbook 265 72 48 63 68 59 68 62 75 79 81 72 39 55 58 52 82 79 55 64 53 58 59 64 66 68 42 37(i) Calculate the mean and standard deviation for each class. (ii) Which class performed better?(iii) Which class was more consistent? (iv) Compute the coefficient of variation for each class. Comment on the results.(v) Construct a stem and leaf for each class.(vi) Compute their lower quartile, upper quartile, interquartile range and median for each class.(vii) Using a graph paper, draw a box and whisker plot for each class. Showing all parameters. Commenting on the distribution of the data set. Hence indicate whether there are outliers.
Which of the following data sets shows categorical data? Course Grade 72 78 85 90 98 Class Size 22 23 25 28 32 Flight Number 1002 1274 4012 5661 7812 Number of Coins 1 3 4 8 19
The mode of the data 15, 13, 19, 15, 25, 22, 15 is O 19 O 15 O 13 О 22 О 25
Find the five-number summary of the scores in the Math 130 test pre-sented in Table 4.1, page 112. Draw the boxplot.
A sociologist is interested in studying the relationship between education and crime. She randomly selects 332 people and asks them their education level and whether or not they have ever been convicted of a felony. Is there evidence that education level and crime are dependent? Education Level No Felony Conviction Felony Conviction Total Less than 99 years 95 12 107 99 years - 1212 years 86 11 97 1212 years - 1616 years 59 7 66 16+16+ years 56 6 6262 Total 296 36 332 Copy Data Step 4 of 8 : Find the value of the test statistic. Round your answer to three decimal places.
When a student performs poorly on a midterm exam, the student sometimes is convinced that their score is an anomaly and that they will do much better on the final exam. The data below show the midterm and final scores (out of 100 points) for eight students in an introductory statistics class. Student Midterm Final 1 70 88 2 58 52 3 85 84 4 82 74 5 70 80 40 36 7 85 48 8 85 96 a) Construct a scatterplot for the data. Describe the pattern that you see in the scatterplot. Are there any clusters or outliers? If so, how would you explain them? b) Calculate the regression line for predicting a student's score on the final exam based on the student's score on the midterm.
Please help with 1,2,3
Complete the stemplot for the following data. 29 27 19 25 10 21 33 23 38 15 23 30 13 19 23 13 22 38 28 24 31 29 42 22 46 19 13 28 45 23 1# | 033359992# | 122333345788993# | 013884# |