6. Calculate coefficient of correlation from the data given below by the directmelioð, Le., without taking the deviations of items from actual or assumed mean.6.41X:1516141311121089.

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Answered: 16. Calculate coefficient of…

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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2.5.27 The data show the number of hours spent studying per day by a sample of 28 students. Use the box-and-whisker plot below to answer parts (a) through (c) below. 1 11 6. 1 9 5 1 1 8 4 3. 4 6. 7. 0. 9. 7 Click the icon to view the box-and-whisker plot. (a) About 75% of the students studied no more than how many hours per day? About 75% of the students studied no more than hours per day. (Type an integer or decimal rounded to one decimal place as needed.) 3.
43. Find out the combined mean for the following data. X1 X2 60 25 70 35 40 30 30 -- a. 51.83 b. 45.54 c. 46.92 d. 41.43
The following is a table of the average monthly temperature of Raleigh, North Carolina and a scatterplot of the data, making month into a quantitative variable by designating Jan=1, Feb=2, . . ., Dec=12. calculate the correlation coefficient
Calculate the average (mean) of the data shown, to two decimal places X 16.6 25 28.3 7.2 23.2 8.5 29.6 26.4
While performing searches on the Internet to find accommodation, Jasmine realized that the cost of a housing unit seems to be related to the number of inhabitants of the municipality where the unit is located. She noted the following data. She represented the data in a scatter plot, where she drew a line of best fit passing through the mean point of the distribution. If Jasmine considers that a linear correlation exists between these two variables, what should be the mean monthly rent of a 4½-room unit in a municipality with a population of approximately 250 000? Justify your answer algebraically.
The accompanying table shows the earnings per share (in dollars) and the dividends per share (in dollars) for 6 companies in a recent year. Complete parts (a) through (d) below. Click here to view the data table. Click here to view the table of critical values for the Pearson correlation coefficient. (a) Display the data in a scatter plot. Choose the correct.graph below. OA. OB. В. Oc. OD. 3- 9- Q Q 2- 6- 6- 3- 3- 04 3. Eamings per share (S) Eamings per share ($) 0. Eamings per share (S) Eamings per share (S) (b) Calculate the sample correlation coefficient r. - X Data Table (Round to three decimal places as needed.) (c) Describe the type of correlation, if any, and interpret the correlation in the context of the data. Earnings per share, x Dividends per share, y O 1.36 1 There is V linear correlation. 4.3 0.59 3.56 8.27 1.74 2.47 Interpret the correlation. Choose the correct answer below. 1.19 0.67 1.6 2.82 O A. Increases in companies' eamings per share cause their dividends per share…
The accompanying table lists the ages of acting award winners matched by the years in which the awards were won. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Should we expect that there would be a correlation? Use a significance level of α=0.05. LOADING... Click the icon to view the ages of the award winners. Construct a scatterplot. Choose the correct graph below. A. 20702070Best Actress (years)Best Actor (years) A scatterplot has a horizontal axis labeled Best Actress in years from 20 to 70 in increments of 5 and a vertical axis labeled Best Actor in years from 20 to 70 in increments of 5. Twelve points are plotted. Eleven of the plotted points follow the pattern of a line rising from left to right passing through the points (24, 38) and (66, 58). An…
A food truck owner recorded the temperature at noon, in degrees Fahrenheit, and the number of bowls of soup sold during the lunch hour for a random sample of 5 days. The data are shown in the following table. Temperature (degrees Fahrenheit) 57 75 43 68 67 Number sold 17 12 20 8 13 The mean temperature of the sample is 62 degrees Fahrenheit, and the mean number sold is 14. What is the correlation between the temperature and the number sold? A -0.85 B -0.68 0.68 D 0.73 E 0.85
Which of the following is true about the Variance? a. It tells how far the scores lies from the mean. b. The more the spread of data indicates the large the vriance is in relation to the mean. c. The spread of data has no effect on the Variance. d. The small the vriance indicates the more spread of data.
3
Which ONE of the following statements regarding 0.581 on the summary output is correct? Group of answer choices 0.581 is the correlation for TIP and PREDICTED-SALES AMOUNT. -0.581 (negative 0.581) is the correlation for SALES AMOUNT and TIP. -0.581 (negative 0.581) is the correlation for TIP and PREDICTED-TIP. 0.581 is the correlation for TIP and PREDICTED-TIP. -0.581 (negative 0.581) is the correlation for SALES AMOUNT and PREDICTED-TIP. 0.581 is the correlation for SALES AMOUNT and PREDICTED-SALES AMOUNT.

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16. Calculate coefficient of correlation from the data given below by the direct ndtood, Le., without taking the deviations of items from actual or assumed mean. X: 9. 7. 15 16 14 13 11 12 10 8. 9.