4.26 NHTSA crash tests. Refer to the National Highway TrafficSafety Administration (NHTSA) crash tests of new carmodels, presented in Exercise 4.6 (p. 188). A summary ofthe driver-side star ratings for the 98 cars is reproducedin the MINITAB printout in the next column. Assume that1 of the 98 cars is selected at random, and let x equal thenumber of stars in the car's driver-side star rating.a. Use the information in the printout to find the proba-bility distribution for x.b. Find P(x = 5).e. Find P(x s 2).MINITAB Output for Exercise 4.26:Tally for Discrete Variables: DRIVSTARDRIVSTAR Count Percent24.081717.354 59S 189860.2018.37N-

a. The value of P(X=x) is obtained by dividing percent by 100. The probability distribution of x is…

Answered: NHTSA crash tests. Refer to 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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Obtain the five number summary for the given data. The test scores of 30 students are listed below. Find the five-number summary. 32 42 45 48 52 55 57 61 62 65 80 81 83 85 85 87 90 94 96 98 Send data to Excel O Min=32, Q, =61, Q,= 70, Q, = 83, Max = 98 Min = 32, Q, = 61, Q, = 72, Q,=83, Max = 98 O Min = 32, Q, = 59, Q, = 72, Q, = 83, Max = 98 O Min = 32, Q, = 59, Q, = 70, Q, = 83, Max = 98 Continue
How young is too young to have a cell phone? A group of eighth-grade boys and girls were surveyed and asked if they had a cell phone, with the following results. Cell Phone No Cell Phone Boys 54 46 Girls 57 43 (a) Draw a stacked bar chart to describe the data. I Cell Phone I No Cell Phone 1 Cell Phone I No Cell Phone 1 Cell Phone I No Cell Phone Frequency Frequency Frequency 100 100 100 80 80 80 60 60 60 40 40 40 20 20 20 Gender- Gender- Gender Boys Girls Вoys Girls Воys Girls Cell Phone No Cell Phone Frequency 100 80 60 40 20
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A researcher is interested in the relationship between age and golf performance. The researcher claims that golf performance improves with age, that is, as one gets older, his or her golf scores decrease. [In golf, a low score represents better performance; a higher score represents worse performance.] The researcher randomly selects a group of eight golfers at the local golf course and records their ages and their most recent golf score. The data that were collected are presented below: Golfer's Name Diego Tiger Bogart Marilyn Jennifer Mitch Bubba Amber Age (years) Variable 1 23 14 38 43 49 36 72 Golf Score Variable 2 92 112 77 84 81 72 79 86 Which of the following are the correct statements of the null and alternate hypotheses, Ho and HA? O Ho: M₁ M₂ and HA: H1 H₂
The lengths (in kilometers) of a random sample of 18 rivers on the South Island of New Zealand that flow to the Pacific Ocean are listed in table below. Lengths of Rivers (in km) 136 121 322 209 208 98 160 66 97 56 90 48 167 64 72 93 288 138 For the data shown above, find the following. Do not round any of your answers. The program here will take either answer.a) Find the 5-number summary: { ,,,, } b) Compute the IQR. Put your answer in the first box and the correct units in the second box. c) What is the lower fence for this data set? What is the upper fence for this data set? d) Which of the following is the correct modified boxplot for the data? What units would go on each of your answers above?
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