Fuel Economy, Minivans - The Environmental Protection Agency (EPA) publishes fuel economy values that are known to be good estimates of the fueleconomy a typical driver will achieve under average driving conditions. One of the fuel economy values the EPA publishes is a combined estimate,which represents a combination of city driving (55%) and highway driving (45%).Toyota Sienna, a popular minivan, advertises an average combined fuel usage of 22 mpg. A large rental company collected the information aboutcombined fuel economy (mpg) for their 10 Toyota Sienna minivans. The results are shown in the table below.21.72121.920.421.821.622.520.823.521.1The company calculates the sample mean to be 21.63 and sample standard deviation as 0.897.Round all calculated values4 decimal places as appropriate.1. The management believes that Toyota has overestimated the fuel economy of the Sienna. Which set of hypotheses should we use to determine if thefuel efficiency of the Sienna is less than what is advertised?ОА. Но : иВ. Но : иС. Но : иDD. Hо : и < 21.63 vs. H, :и> 21.63— 22 vs. Hа:+ 2222 vs. H, : u < 22a22 vs. Ha : и> 222. What conditions must be met if we want to perform a hypothesis test and answer the question of the management? Select all that apply:A. np > 10 and n(1 – p) > 10|B. The observations are independent.C. Population data must be nearly normal or the sample size must be at least 30.D. There must be at least 3 levels of the categorical variable.3. Assuming the conditions for the hypothesis test are met, find the test statistic and the p-value.test statistic =p-value =

Answered: Image /qna-images/answer/f96e72ec-b0cc-49ab-bfa8-6bed7e1284da.jpg

Fuel Economy, Minivans - The Environmental Protection Agency (EPA) publishes fuel economy values that are known to be good estimates of the fuel conomy a typical driver will achieve under average driving conditions. One of the fuel economy values the EPA publishes is a combined estimate, vhich represents a combination of city driving (55%) and highway driving (45%). oyota Sienna, a popular minivan, advertises an average combined fuel usage of 22 mpg. A large rental company collected the information about combined fuel economy (mpg) for their 10 Toyota Sienna minivans. The results are shown in the table below. 21.7 21 21.9 20.4 21.8 21.6 22.5 20.8 23.5 21.1 he company calculates the sample mean to be 21.63 and sample standard deviation as 0.897. Round all calculated values to 4 decimal places as appropriate. . The management believes that Toyota has overestimated the fuel economy of the Sienna. Which set of hypotheses should we use to determine if the uel efficiency of the Sienna is less than what is advertised? ОА. Но : и %3D 22 vs. Ha : и # 22 Ов. Но : и %3D 22 vs. Ha : и < 22 ос. Но : и 3D 22 vs. Ha : и> 22

Fuel Economy, Minivans - The Environmental Protection Agency (EPA) publishes fuel economy values that are known to be good estimates of the fuel conomy a typical driver will achieve under average driving conditions. One of the fuel economy values the EPA publishes is a combined estimate, vhich represents a combination of city driving (55%) and highway driving (45%). oyota Sienna, a popular minivan, advertises an average combined fuel usage of 22 mpg. A large rental company collected the information about combined fuel economy (mpg) for their 10 Toyota Sienna minivans. The results are shown in the table below. 21.7 21 21.9 20.4 21.8 21.6 22.5 20.8 23.5 21.1 he company calculates the sample mean to be 21.63 and sample standard deviation as 0.897. Round all calculated values to 4 decimal places as appropriate. . The management believes that Toyota has overestimated the fuel economy of the Sienna. Which set of hypotheses should we use to determine if the uel efficiency of the Sienna is less than what is advertised? ОА. Но : и %3D 22 vs. Ha : и # 22 Ов. Но : и %3D 22 vs. Ha : и < 22 ос. Но : и 3D 22 vs. Ha : и> 22

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

In 2016 the Better Business Bureau settled 84% of complaints they received in the United States. Suppose you have been hired by the Better Business Bureau to investigate the complaints they received this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the Better Business Bureau is able to settle. Assume the population proportion of complaints settled for new car dealers is 0.84, the same as the overall proportion of complaints settled in 2016. Use the z-table. a. Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of p. E(p) (to 2 decimals) (to 4 decimals) b. Based upon a sample of 200 complaints, what is the probability that the sample proportion will be within 0.04 of the population proportion (to 4 decimals)? probability : = c. Suppose you select a sample of 460 complaints involving new car dealers. Show the sampling distribution of p. E(F) (to 2…
What is the approximate forecast for November using a four-month moving average? Oct - 700Sept - 600Aug - 880July - 670June - 430
A software company is interested in improving customer satisfaction rate from the 51% currently claimed. The company sponsored a survey of 157 customers and found that 89 customers were satisfied.
A small-town mechanic says that 8% his customers come in for an oil change. When 1000 samples were drawn from his records, it was found that 6.5% of these came in for an oil change.i. find the target population?
Which region has the largest population in this sample? What proportion live in that region? Which region/province has the least people? What is the percentage? How many in the sample were from the Prairies?
Customers arrive at a rate of 40 per hour. You can process 50 customers per hour. a. What percentage of the time are you busy? b. What is the average number of customers in the system? c. What is the average time that a customer spends in the system (in minutes)?
Approximately 19% of music lovers like Country Music. Of those who do, 97% do not have mild brain damage.What percent of music lovers like Country and do not have Brain Damage?
A hospital report indicates 25% of its patients had an MRI in January. If 1,060 patients were hospitalized in January, how many had an MRI?
Net Worth. The Board of Governors of the Federal Reserve System publishes information on family net worth in the Survey of Consumer Finances. In 2010, the mean net worth of families in the United States was $498.8 thousand and the median net worth was $77.3 thousand. Which measure of center do you think is more appropriate? Explain your answer.
There are 435 seats in a nation's House of Representatives. The number of representatives per state is calculated using a statistical formula determined by law, but allocation is roughly proportionate to population. In 2010, the nation's population was estimated to be 309.1 million. The state's population was estimated at 26.1 million. How many representatives would you expect to be assigned to the state? Suppose the state actually has 34 representatives. Compare this with the expected number of representatives from the state.
Please do question 2-4. Thanks
your car is more crowded than you think. table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.