Math

StatisticsQ&A LibraryChapter 8 39012lW 5. Toyota Motor Corporation developed the Scion car model to appeal to young consumers. Toyota claims the average age of a Scion driver is 26 years old. Suppose a random sample of 18 Scion drivers was drawn, and the average age of the drivers was found to be 27.5 years. Assume the standard deviation for the age of Sciongsn drivers is 2.3 years. eivom s to goli0 5251V5 9r .2y vD 18 7 0 noia adATsnoisiert of gnibiopA Construct a 95% confidence interval to estimate the average age of a Scion driver. er2 26w S1O .bstpole yimobns .! a. b. Does this result lend support to Toyota's claim? c. What assumption needs to be made for this procedure? 97 lo wo e bushbnct ertthus 58 .6 catre nortl zal dsdong erlt 2i torlW.d The US air traffic control system handled an average of 47,529 flights during 30 randomly selected days, The 6. standard deviation for this sample is 6,210 flights per day. dpin ort ai dodW b a. Construct a 99% confidence interval to estimate the average number of flights per day handled hy the qusniniss viibos system. ne 36oy teg AM 0.5 sbreh. Suppose the current system can safely handle 50,000fights per day. What conclusion can be drawn with cotusiveb 0Jins these results? 2 c. What assumptions need to be made about this population? 2 80 The US Department of Education reported that in 2007, 67% of students enrolled in college or a trade school within 12 months of graduating from high school. In 2013, a random sample of 160 individuals who graduated from high school 12 months prior was selected. From this sample, 102 students were found to be enrolled in 7. college or a trade school. a. Construct a 90% confidence interval to estimate the actual proportion of students enrolled in college or a school within 12 months of graduating from high school in 2013. error for this sample? 9id that this proportion has changed since 2007?Question

Number 5 Please, Explain shortcut with TI84 if applicable

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: 10 9 8 6 Frequency 5 4 3 2 1 0 to 9 10 to 19 20 to 29 30 to 39 40 to 49 50 to 59 The table above lis...

A: Frequency table:Frequency table represents the number of times each class repeats.The frequency of e...

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as ...

A: Hello there! there are moe than three subparts in the question. According to our policies cannot ans...

Q: The flow in a river can be modeled as a log-normal distribution. From the data, it was estimated tha...

A: According to the given question, the flow in a river can be modeled as a log-normal distribution. Fr...

Q: One major assumption with independent t tests is called “homogeneity of variances.” Describe this as...

A: Independent Two Samples t-test:Suppose there are two populations independent of one another. A resea...

Q: Fuming because you are stuck in traffic? Roadway congestion is a costly item, both in time wasted an...

A: (a)The scatter diagram for the provided data can be plotted using Excel.The steps are given below:En...

Q: An epidemiologist found five cases of “big toe cancer” in the Yukon Territory. Because there were on...

A: Note: Since we are authorized to answer only up to 3 subparts, we are answering first three subparts...

Q: I am working on constructing a histogram for some data for the 39 US national parks under 900,000 ac...

A: According to the given data41 ,66 ,233 ,775 ,169, 36 ,338 ,233 ,236, 64,183 ,61 ,13 ,308 ,77,520, 77...

Q: On a test, 95% of the questions are answered correctly. If 57 questions are correct, how many quest...

A: The aim is to find the number of questions on the test.Here, the number of question answered correct...

Q: The Orchard Cafe has found that about 10% of the diners who make reservations don't show up. If 86 r...

A: The aim is to find the mean, µ, and standard deviation, σ of the binomial distribution.