Another measure of central tendency that is rarely used but iseasy to calculate is the midrange. It can be found using theformula below. A consumer testing service obtained the mileages(in miles per gallon) shown in the table to the right in five testruns performed with three types of compact cars. Each carmanufacturer wants to advertize that its car performed the best inthis test. Which of the car manufacturers of cars A, B, and Cwould prefer to use the midrange statistic in their ads? Explainyour reasoning.Car MPGAB283331313134283317291834(Maximum data entry) + (Minimum data entry)Midrange =3533322The manufacturer ofwould prefer to use the midrange, since their car's midrange ofmpg is theof the three models.(Type an integer or a decimal.)

Answered: Another measure of central tendency…

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 solve for G, H, and I
A poll was conducted on a representative sample of 600 adults living in the United States in order to investigate the decline in cable and satellite TV subscriptions. For this sample, 150 adults revealed that they are "cord cutters," (that is, they canceled their cable/satellite TV service and now only use a video streaming service). You want to estimate p, the true proportion of all US adults who are "cord cutters." Complete parts a through e. d. Give a practical interpretation of the confidence interval from part c. (Type integers or decimals rounded to three decimal places as needed. Use ascending order.) A. The probability that the true proportion of all US adults who are "cord cutters" is enter your response here lies between enter your response here and enter your response here. B. We can be enter your response here% confident that the true proportion of all US adults who are "cord cutters" lies between enter your response here and enter your…
In Major League baseball, the speed of a pitch is very important. How fast is the speed of a major league pitchers average pitch? A researcher took a random sample of the speed of 16 pitches from the 2019 Major League baseball season. The following are the speeds of these pitches in miles per hour: 92.8, 87.0, 89.1, 96.2, 75.6, 89.6, 92.5, 83.3, 86.5, 95.6, 94.1, 91.6, 94.2, 93.4, 90.0 It is reasonable to treat these measurements as coming from a normal distribution with unknown mean μ and unknown standard deviation σ d) Find the sample standard deviation of the above data e) Find the sample median of the above data. f)Create a 90% confidence interval for μ. ( , )
The manager of a bank decide to compare the speed on the job of four tellers working in the bank. The following data give the amount of time (in minutes) that they spent serving their customers, picked at random. Teller 1 Teller 2 Teller 3 Teller 4 0.8 8.7 9.7 0.7 1.6 4.2 2.0 3.2 8.8 0.2 5.9 4.2 7.7 9.0 2.3 6.7 3.3 5.8 7.5 1.4 At c=0.01, what will be the critical value or rejection region?
Twenty five right-handed students were asked to turn a knob (using their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right-hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The data presented below gives the times (in seconds) each subject took to move the indicator a fixed distance: Obs.# R Obs.# R L L Obs.# R 1 113 8 116 166 22 100 2 105 105 9 75 146 23 89 3 130 133 10 96 123 24 85 4 101 108 11 122 135 25 88 5 138 115 12 103 6 118 170 13 116 7 87 103 14 107 At 1% level of significance, can we conclude that these right-handed students found it easier to use the knobs with a right-hand thread? Use the following form of the difference: right-left. 1. Test Stat: L 137 2. Critical Region: a. T> 2.492 b. Tabs (2.492) c. T> abs (-2.492) d. T < -2.492 Obs.# R 15 118 16 103 17 111 18 104 19 111 147 20 89 87 21 78 145 78 107 84 148 112 93 76 L 116 78 101 123 3. Conclusion:…
From the data given below, calculate Karl Pearson's and Bowley's coefficients of skewness. Mean = 150, Median = 142, Q, = 62, Q3 = 195, D, = 30, D, = 230, S.D. = 30
Taylor Swift is interested in learning what proportion of her fans want her to re-record her masters, so she takes a simple random sample of 500 fans and asks them. Of the 500 fans, 487 of them (97.4%) respond that they want her to re-record all of her masters. What is the parameter and what is its value? a. The parameter is the average number of all Taylor Swift fans who want her to re-record her masters, which is unknown. b. The parameter is the proportion of the sampled Taylor Swift fans who want her to re-record her masters, which is unknown. c. The parameter is the group of the sampled Taylor Swift fans who want her to re-record her masters, which is 487. d. The parameter is the proportion of the sampled Taylor Swift fans who want her to re-record her masters, which is 0.974. e. The parameter is the proportion of all Taylor Swift fans who want her to re-record her masters, which is unknown. f. The parameter is the proportion of all…
A recent study evaluated how addicted teenagers become to nicotine once they start smoking. The response variable was the number of yes answers on a questionnaire called the Hooked on Nicotine Checklist (HONC). Of teenagers who had tried tobacco, the mean HONC score was 3.8 (s = 4.4) for the 141 females and 2.4 (s = 3.5) for the 178 males. Complete parts a through c below. a. Find the standard error comparing the sample means. Interpret. The standard error is se= 0.4540. (Round to four decimal places as needed.) What does the standard error indicate? ... OA. The standard error is the standard deviation of the sample for this study. OCT 28 OB. The standard error is the difference in standard deviations for the two populations. OC. The standard error is the standard deviation of the difference between x₁-x₂. D. The standard error describes the spread of the sampling distribution of x₁-x₂. b. Find the test statistic and P-value for Ho: H₁ H₂ and Ha: H₁ H₂. Interpret, and explain what (if…
The manager of a bank decide to compare the speed on the job of four tellers working in the bank. The following data give the amount of time (in minutes) that they spent serving their customers, picked at random. Teller 1 Teller 2 Teller 3 Teller 4 0.8 8.7 9.7 0.7 1.6 4.2 2.0 3.2 8.8 0.2 5.9 4.2 7.7 9.0 2.3 6.7 3.3 5.8 7.5 1.4 At c=0.01, what is the value of your Test Value or F? Select the correct response: 0.217 0.271 0.721
Twenty five right-handed students were asked to turn a knob (using their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right-hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The data presented below gives the times (in seconds) each subject took to move the indicator a fixed distance: Obs. # R 1 2 13 14 15 6 113 105 130 101 138 118 87 IL Obs. #R 137 18 105 9 133 10 108 11 115 12 170 13 103 14 IL |Obs. # |R 116 145 15 118 75 78 16 103 96 107 17 |111 123 122 184 18 104 135 103 148 19 111 112 | 116 147 120 89 193 107 187 121 178 176 1. Test Stat (round off final answer to 4 decimal places) 2. Critical Region: Select one: a. T>abs(2.492) b. T2.492 d. T>abs(2.492) Obs. # R IL 166 22 146 23 100 At 1% level of significance, can we conclude that these right-handed students found it easier to use the knobs with a right-hand thread? Use the following form of the difference:…
2. For a  = 30, and  = 8, find the z-score for each of the followingscores:A. X = 32 B. X = 26 C. X = 42
Another measure of central tendency that is rarely used but is easy to calculate is the midrange. It can be found using the formula below. A consumer testing service obtained the mileages (in miles per gallon) shown in the table to the right in five test runs performed with three types of compact cars. Each car manufacturer wants to advertize that its car performed the best in this test. Which of the car manufacturers of cars A, B, and C would prefer to use the midrange statistic in their ads? Explain your reasoning. Midrange= (Maximum data entry) + (Minimum data entry) 2 A 28 33 The manufacturer of (Type an integer or a decimal.) 28 29 35 Car MPG B 32 30 32 25 32 ... C 30 33 24 33 31 would prefer to use the midrange, since their car's midrange of mpg is the of the three models.

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