21The following table gives the distribution of students according toage in completed years and regular players amongthem.151617181920Age in YearsNo. of Students2502001501201008015090483012Regular PlayersCalculate Co-efficient of association between maturity and playinghabit, on the assumption that maturity is attained in the 18th year of age.200

Answered: Image /qna-images/answer/d5274648-18a4-49b8-bed0-78aee5466bc9.jpg

Answered: The following table gives the…

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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A sample of size 50 will be drawn from a population with mean 76 and standard deviation 14. Find the 69th percentile of x.
3. The following data shows prices of three types of fruits over ten years. Year Mango Orange Blackberry 50 100 150 55 115 155 60 100 125 4 55 110 130 63 120 120 65 110 125 7 70 105 140 8 75 120 170 60 130 160 10 65 135 175 Take year 1 as the base year. In that year the production of Mango, Orange, and Blackberry was 50, 25, and 15 thousand kilograms respectively. a) Find the un-weighted index of prices. b) Find the Laspeyres index for fruit prices. c) What is the change in price from year 6 to year 7 if you use un-weighted index. d) What is the change in price from year 6 to year 7 if you use Laspeyres index. e) Is answer to c is different from answer to d. Explain your answer
Example 13.15. The following table gives the distribution of students and also of regular players among them, according to age in completed years : Age in years 15 16 17 18 19 20 : No. of students 250 200 150 120 100 80 Regular players 200 150 90 48 30 12 Calculate the coefficient of association between majority and playing habit, on the assumption that majority is attained in 18th year.
The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender: Opinion Female Male Almost no chance 120 94 Some chance but probably not 156 178 A 50-50 chance 427 498 A good chance 750 700 Almost certain 1176 770 How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…
3. Some sports psychologists believe that an athlete's motivation is related to how many hours they will devote to training in a 2-week period. To see if this is true, a sports trainer measures the motivation (M) and training hours (TH) of a random sample of 8 Olympic-class athletes and obtains the following data: M TH 57 40 74 46 42 38 48 36 75 54 62 42 665 76 550 69 25 a) Is there a significant correlation between M and TH in this sample (a≤.05)? (8 points) b) If another athlete obtained an M score of 70, what would his or her predicted TH score be and what are the 90% bounds to the error of this prediction? (10 points)
4- Consider the set of following data: Temperature 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Percent heat loss from 32 34 35 33 37 46 55 51 43 52 45 53 58 60 62 62 beak a) Make a scatterplot and describe the main features of the distribution. b) Find the correlation coefficient if you see a linear association (use a calculator).
The table below is the number of employees owned by Islamic Commercial Banks (BUS) in 2011 – 2020 obtained from the publication of Sharia Banking Statistics for several years. From the data, answer the following questions: Draw a dot diagram and trend line chart
Suppose an Internet retailer would like to investigate the linear relationship between the amount of time in minutes a purchaser spends on its Web site and the amount of money he or she spends on an order. The table to the right shows the data from a random sample of 12 customers. Order Size Time Order Size 20 $71 4 $60 11 $29 38 $365 26 $90 8 $132 22 $203 36 $155 3 $49 22 $78 12 $39 7 $249 α=0.01 The test statistic is t=1.93 The p-value is (Round to four decimal places as needed.)
3. The following table summarizes drink sales at a store over the course of two seasons. Milkshake Coffee Total Summer 48 65 113 Winter 21 53 74 Total 69 118 187 From this data, does the choice of drink appear to be dependent or indenendent of season?

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