A sports equipment manufacturer has developed a new reasonably pricedgolf ball that it hopes will allow average golfers to hit the ball straighter.A concern is that this new technology might impact on the distance that theball travels. To compare distances, Sarah, a company researcher, conductsan experiment where 20 current balls and 20 new balls are subjected todistance tests, using a mechanical hitting device for consistency.The results of the tests, with distances given to the nearest metre, are givenin Table 1.Table 1 Distances travelled by golf ballsCurrent golf ballNew golf ball299292292291293285295288283273280305280286311308292291283296292294309281311286302302294296297303287298282293300290297284 (a) Sarah considers displaying the data as a pair of dotplots. Do you thinkthat this is a good idea for these particular datasets? Give a briefreason for your answer.

Given Information: There are two golf balls, current and new. Distances of 20 balls traveled are…

Answered: (a) Sarah considers displaying the data…

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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PLEASE USE THE TABLE PROVIDED TO ANSWER THE QUESTION: A movie theater will be replaying old movies for a film festival and considering those with the highest public opinion back when the movie came out. Did movies with high public opinion explain a high revenue according to the dataset? Give a formal statistical conclusion to explain your answer. Construct any plot(s)/graph(s) to support your answer.
KidsFeet Parallel Scatterplots by Sex The KidsFeet dataframe contains data collected on 39 fourth grade students in Ann Arbor, MI, in October 1997. Two of the measurements taken on the children was the length, (length), and width, (width), of their longest foot. Based on the scatterplot shown below, there appears to be a positive linear association between the length and width of a fourth grader's biggest foot that holds even when the child's sex is accounted for. One of the following lines of code created everything in the graph below, except for the title and the axis labels. Which one was it?? ( ) xyplot(length~width, groups=sex, data=KidsFeet) ( ) xyplot(width~length,groups=sex,data=KidsFeet) ( ) xyplot(width~length|sex,data=KidsFeet) ( ) xyplot(width~length,groups=sex,data=KidsFeet, auto.key=TRUE) ( ) xyplot(length~width|sex, data=KidsFeet) ( ) xyplot(length~width, data=KidsFeet) ( ) xyplot(length~width, groups=sex, data=KidsFeet, auto.key=TRUE) ( )…
A sports equipment manufacturer has developed a new reasonably priced golf ball that it hopes will allow average golfers to hit the ball straighter. A concern is that this new technology might impact on the distance that the ball travels. To compare distances, Sarah, a company researcher, conducts an experiment where 20 current balls and 20 new balls are subjected to distance tests, using a mechanical hitting device for consistency. The results of the tests, with distances given to the nearest metre, are given in Table 1. Table 1 Distances travelled by golf balls Current golf ball New golf ball 299 292 292 291 293 285 295 288 283 273 280 305 280 286 311 308 292 291 283 296 292 294 309 281 311 286 302 302 294 296 297 303 287 298 282 293 300 290 297 284
Data Table Faculty: 2 3 1 0 1 2 4 3 3 2 1 Student: 6 7 9 3 8 11 2 5 7 11 10 b. Give the five-number summary and draw a boxplot for each of the two data sets. Give the five-number summary for faculty parking. low= lower quartile= median= upper quartile= high=
Please complete the following question. Make sure you are responding to all parts of the question. The number of awards earned by students at one high school is recorded. Predictors of the number of awards earned include the type of program in which the student was enrolled (e.g., vocational, general or academic) and the score on their final exam in math. Variables Participant number (ID) Number of awards Program type (vocational - 1; general - 2; academic - 3 Math Score id num_awards prog math 45 1 3 41 108 1 1 41 15 1 3 44 67 1 3 42 153 1 3 40 51 1 1 42 164 1 3 46 133 1 3 40 2 1 3 33 53 1 3 46 1 1 3 40 128 0 2 38 16 1 3 44 106 1 3 37 89 1 3 40 134 1 1 39 19 1 1 43 145 0 3 38 11 1 2 45 117 0 3 39 109 1 1 42 12 1 3 45 37 1 3 40 69 0 3 40 43 1 2 43…
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4.3) •VA report from Texas Transportation Institute (Texas A&M University System 2005) on Congestion Re- duction Strategies looked into the extra travel time (due to traffic congestion) for commute travel per traveler per year in hours for different urban areas. Below are the data for urban areas that had a population of over 3 million for the year 2002. Extra Hours per Traveler per Year Urban Area Los Angeles San Francisco 98 75 Washington DC Atlanta 66 64 Houston 65 Dallas, Fort Worth Chicago Detroit 61 55 54 Miami 48 Boston 53 New York 50 Phoenix 49 Philadelphia 40 4. Compute the mean and median values for extra travel hours. Based on the values of the mean and median, is the distribution of extra travel hours likely to be approximately symmetric, positively skewed, or negatively skewed?
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(a) Sarah considers displaying the data as a pair of dotplots. Do you think that this is a good idea for these particular datasets? Give a brief reason for your answer.