6. Which of these relationships would be better described with a Spearman's rank coefficient thanwith a Pearson's coefficient?a.The association between income and educational attainment (measured in years ofschool)b. The association between hours of sleep and score on an examC. The association between years aged and price of wined.The association between ice cream sales and crime ratese. The association between number on NY Times Best Seller List and copies of book sold

The association between ice cream sales and crime rates. This one relationships would be better…

Answered: 6. Which of these relationships would…

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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Which correlation coefficient would you use to look at the correlation between gender and time spent on the phone talking to your mother? Oa. Kendall's correlation coefficient, T b. Pearson's correlation coefficient, r O c. The biserial correlation coefficient, b O d. The point-biserial correlation coefficient, 'pb
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b. When a positive relation exists between two variables, what will be true in the calculation of the Pearson correlation coefficient? Group of answer choices Most deviation scores will be negative. The product of most pairs of deviations will be positive. The prodcut of most pairs of deviations will be negative. Most deviation scores will be positive. c. What is the correlation between a person's weight as measured in grams and a person's weight as measured in pounds? Group of answer choices +1.0 0 -1.0 +0.5 d. Which of these values of the correlation coefficient indicates the weakest relationship between two variables? Group of answer choices -0.30 0.03 -0.18 0.42
V2.b. Find Pearson correlation of following data: A: 10,12,14,16,18,20,22,24,26,28 B: 25.30.28.34,30,39,45,40,49,50
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6. Which statistical tool studies the relationship between two or more variables? a. Median b. Range c. Mean d. Correlation
Exercise 4.2 Direction: Answer the following problems. 1. Calculate the mean, median and mode of the following sets of data. 14, 16, 8, 8,10, 12, 9, 12, 13, 14, 8, 9, 5, 7, 11 b. 12.5, 15.5, 10.5, 10.2, 11.15, 9.5, 8.2, 18.3, 10.5, 10.5 a. 2. Find the General Weighted Average of a student whose grades for a 3 unit subjects such as Math, English, Filipino, Science, and Social Studies were 2.0, 1.8, 1.4, 2.2 and 2.5, respectively. 89 3. Heather's test scores are 81, 93, 74 and 95. What score must she get on the fifth test in order to get a mean of 85 on all five tests? 4. The final grade of a student in six subjects are as follows: Final Grade Subject Math in the Modern World Readings in Phil. History Wellness and Fitness No. of Units 3 2.0 3 1.9 3 1.4 Understanding the Self Masining na Pagpapahayag Calculus 1 3 1.5 1.5 1.8 a. Determine his weighted mean grade. b. If the subjects are of equal number of units, what would be the average grade of the student? Exercise 4.3 Direction: Solve…
Find the following: (i) Mean. (ii) Median. (iii) Mode.
2
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Refer to the following: For countries listed in the Human Development Report, the correlation between the percent of people using the Internet and per capita gross domestic product (GDP) is 0.888. The correlation (r) between the percent of people using the Internet and the percent using cell phones is 0.818. The correlation between the percent of people using the Internet and the literacy rate is 0.669. The correlation between the percent of people using the Internet and the fertility rate is -0.551. Interpret a) the correlation between Internet use and GPD, and b) the correlation between Internet use and the fertility rate. In your interpretations, take into account the direction and strength of the relationship between the variables. Also interpret the correlations correctly with regard to the standardized slope.
7. Given the situation, determine what type of correlation: Positive Negative No Correlation a. Speed of a car and amount of speeding tickets Positive Negative No Correlation b. Size of your shoe and size of dog Positive Negative No Correlation c. Size of your shoe and your height Positive Negative No Correlation d. Amount of points scored and your jersey number Positive Negative No Correlation e. Paycheck size and water bill amount Positive Negative No Correlation f. Number of calories eaten and the number of bags of Takis eaten Positive Negative No Correlation g. The temperature outside and the amount of air conditioning used 12

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