Which histogram belongs to the data for the current golf balls –Figure 3 or Figure 4? Give a reason for your answer. (f) Sarah creates (poorly presented) histograms for each of the twodatasets, shown in Figures 3 and 4 below.2-270275280285200296300305310315Figure 34-2-1-270275280285290295300305310315Figure 4 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 ball292299291292293285295288280283305273280286291311283308296292292294309281311286302302294296297303287298282293300290297284

From the given data set, firstly make a frequency table and then make a histogram with the help of…

Answered: datasets, shown in Figures 3 and 4…

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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It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 120 feet. A transportation researcher wants conduct a hypothesis test to determine if the stopping distance is less than 120. What is Type II error in the context of this problem?
Find the quantity (deviance) for testing the hypothesis H0 and the pvalue used
If a police officer wants to find out whether the average speed of motorists on a highway with a speed limit of 55 mph is greater than 55 mph, then the null hypothesis is 55. false true
The shop floor manager in a dairy company believes that the milk packaging process unit for 1 liter packs is not working fine and needs calibration. If the Null Hypothesis is framed to be µ = 1 liter, what would be the alternate hypothesis?
An airline wants to test the null hypothesis that 60percent of its passengers object to smoking inside the plane. Explain under what conditions they would be com-mitting a type I error and under what conditions they would be committing a type II error.
A sample of 200 bolts from one machine showed that 15 were defective, while a sample of 100 bolts from another machine showed that 12 were defective. Find the (a) 95%, (b)99.73% confidence limits for the difference in proportions of defective bolts from the two machines. Discuss the results obtained.
Marshall is superstitious and suspects that people who take the GRE while wearing the same dirty socks that they wore when they got their best score on a practice test will do better than people who do not wear these “lucky” socks. In order to test that hypothesis among college students, he made 20 students wear their “lucky” socks and 20 not wear their lucky “socks” while taking the GRE test. Although he was convinced that people who wore their “lucky” socks would score higher than people who didn’t, he wanted to be able to test the possibility that they could score lower. Their scores are as follows: “Lucky”                     Non-“Lucky” Sock wearers             Sock Wearers 108                              105 107                              107 112                              110 113                              109 105                              105 100                              114 120                              98 *For this problem, you will be conducting a t…
) Marshall is superstitious and suspects that people who take the GRE while wearing the same dirty socks that they wore when they got their best score on a practice test will do better than people who do not wear these “lucky” socks. In order to test that hypothesis among college students, he made 20 students wear their “lucky” socks and 20 not wear their lucky “socks” while taking the GRE test. Although he was convinced that people who wore their “lucky” socks would score higher than people who didn’t, he wanted to be able to test the possibility that they could score lower. Their scores are as follows: “Lucky”                     Non-“Lucky” Sock wearers             Sock Wearers 108                              105 107                              107 112                              110 113                              109 105                              105 100                              114 120                              98 *For this problem, you will be conducting a t…
Marshall is superstitious and suspects that people who take the GRE while wearing the same dirty socks that they wore when they got their best score on a practice test will do better than people who do not wear these “lucky” socks. In order to test that hypothesis among college students, he made 20 students wear their “lucky” socks and 20 not wear their lucky “socks” while taking the GRE test. Although he was convinced that people who wore their “lucky” socks would score higher than people who didn’t, he wanted to be able to test the possibility that they could score lower. Their scores are as follows: “Lucky”                     Non-“Lucky” Sock wearers             Sock Wearers 108                              105 107                              107 112                              110 113                              109 105                              105 100                              114 120                              98 *For this problem, you will be conducting a t…
Marshall is superstitious and suspects that people who take the GRE while wearing the same dirty socks that they wore when they got their best score on a practice test will do better than people who do not wear these “lucky” socks. In order to test that hypothesis among college students, he made 20 students wear their “lucky” socks and 20 not wear their lucky “socks” while taking the GRE test. Although he was convinced that people who wore their “lucky” socks would score higher than people who didn’t, he wanted to be able to test the possibility that they could score lower. Their scores are as follows: “Lucky” Non-“Lucky” Sock wearers Sock Wearers 108 105 107 107 112 110 113 109 105 105 100 114 120 98 *For this problem, you will be conducting a t…
A city police department is considering replacing thetires on its cars with a new brand tires. If μ1 is the average number of miles that the old tires last and μ2 is the aver-age number of miles that the new tires will last, the null hypothesis to be tested is μ1 = μ2.(a) What alternative hypothesis should the departmentuse if it does not want to use the new tires unless theyare definitely proved to give better mileage? In otherwords, the burden of proof is put on the new tires, andthe old tires are to be kept unless the null hypothesis canbe rejected.(b) What alternative hypothesis should the departmentuse if it is anxious to get the new tires unless they actuallygive poorer mileage than the old tires? Note that now theburden of proof is on the old tires, which will be kept onlyif the null hypothesis can be rejected.(c) What alternative hypothesis should the departmentuse so that rejection of the null hypothesis can leadeither to keeping the old tires or to buying the newones?
A soft drink filling machine, when in perfect adjustment, fills the bottles with 12 ounces of soft drink. Any overfilling or underfilling results in the shutdown and readjustment of the machine. To determine whether or not the machine is properly adjusted, the correct set of hypotheses is

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datasets, shown in Figures 3 and 4 below. 2 1- 270 275 280 285 290 295 300 305 310 315 Figure 3