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- College students at a local community college take an average of 3.3 years to complete an AA (only counting semesters when officially enrolled). A chancellor at a community college believes that the time to graduation could be high because of the large number of students who move out of their parents homes and move in with other students their age. He theorizes that students who move into their own apartments will party more, focus less on their studies, and have to spend more time earning money, which will make them take longer to graduate. To test his theory, the chancellor randomly selects 36 freshman who are planning to earn an AA and choosing to live in their own apartments while attending the college. The students in the sample took an average of 3.8 years to earn their AA (SS = 50.4). Is there sufficient evidence to indicate, at the 5% level of significance (two-tailed), that community college students who lived on their own took more time to earn an AA? Estimate Cohen's…Help me pleaseThe Bulldog Electronics Company is currently producing a submarine detector for the Navy. The detector will be powered by one of three uranium fuel cells. The fuel cells are activated sequentially, as needed. The procedure is the following. When the detector is installed at the bottom of the ocean, one fuel cell is activated. When that fuel cell stops working, a second cell is automatically activated. When it stops working, the third cell is automatically activated. The time to failure of each cell has a normal distribution with a mean of 400~hours and a standard deviation of 100~hours. Also, the time to failure of an individual cell is independent of the time to failure of any other cell. 1.iWhat is the probability a cell lasts between 300~hours and 700~hours? Some Work 0.14 0.16 0.50 0.84 0.86 Other _____ Powered by Qualtrics
- An article on the PureEnergySystems.com website written by Louis LaPoint discusses a product called acetone. The article stated that “Acetone 1CH3COCH32 is a product that can be purchased inexpensively in most locations around the world, such as in common hardware, auto parts, or drug stores. Added to the fuel tank in tiny amounts, acetone aids in the vaporization of the gasoline or diesel, increasing fuel efficiency, engine longevity, and performance—as well as reducing hydrocarbon emissions.” To test whether this product actually does increase fuel efficiency in passenger cars, a consumer group has randomly selected 5 people to participate in the study. The following procedure is used: People are to bring their cars into a specified gasoline station and have the car filled with regular, unleaded gasoline at a particular pump. Nothing extra is added to the gasoline at this fill-up. The car’s odometer is recorded at the time of fill-up. When the tank is nearly empty, the person is…Chpt 4, Q6: sellect all that apply, more than oneSolve second one
- Please assist with Question 1,(ii)A drug company creates a medicine designed to prevent colds, and states that it is equally effective for men and women. To test this claim, they give the medicine to 100 men and 200 women. At the end of the study, 33 men and 95 women caught a cold. Can we say that the drug is equally effective for men and women? (Use α = .01)Hi, I need help solving this OM problem. Thank you! Table E.3 is shown in the blue box onscreen.
- Harold is going to California over the Easter weekend and takes part in the Rock Festival of the people. He is an optimistic man and intends to sleep in a tent. He is worried about leaks in the tent, but to his great satisfaction, he came across an advertisement for material that the manufacturers claim reduces leakage in tents by spraying it on the outer layer of the tent. He was not convinced but found a study where the material was examined. In the study, leakage in five tents was measured. First, it was measured how much it leaked without the material too much and then how much it leaked after the material was sprayed on the outer layer in each tent. High numbers mean high leakage and low numbers low leakage. It can be assumed that measured leaks follow a normal distribution. The results can be seen below: Harold is also a big fan of R and he performed the following calculations in R: > x<-c(8.6,9.2,7.8,7.2,8.9) > y<-c(6.2,7.2,7.6,8.2,6.1) > mean(x)[1] 8.34 >…Just #7-10 please!Suppose Aaron recently purchased an electric car. The person who sold him his new car told him that he could consistently travel 200 mi before having to recharge the car's battery. Aaron began to believe that the car traveled even farther than the company claimed, and he decided to test this hypothesis formally. Aaron drove his car only to work and he recorded the number of miles that his new car traveled before he had to recharge its battery a total of 17 separate times. The table shows the summary of his results. Assume his investigation satisfies all conditions for a one-sample t-test. Mean miles traveled Sample size t-statistic P-value P 207 17 1.48 0.079 The results statistically significant at a = 0.01 because P 0.01. are are not V
