(06.07 MC)  The annual tuition and parent rating of 12 priva…

(06.07 MC)  The annual tuition and parent rating of 12 private schools is shown on the scatterplot. The schools are rated on a scale of 0 to 100. Part A: Describe the association shown in the scatterplot. (4 points). Part B: Give an example of a data point that affects the appropriateness of using a linear regression model to fit all the data. Explain. (4 points)Part C: Give an example of a school that is cost effective and rated highly by parents. (2 points)(10 points)

(05.04 MC)  A city is interested in building a parking gara…

(05.04 MC)  A city is interested in building a parking garage in a certain area. Three hundred randomly selected residents from this area were asked, “Do you support the city’s decision to build a parking garage in your area?” Of the 300 residents interviewed, 203 said no, 7 said yes, and 90 had no opinion. A large-sample z-confidence interval, p̂ ± z * , was constructed from these data to estimate the proportion of the residents who support building a parking garage in a certain area. Which of the following statements is correct for this confidence interval? (5 points)

(05.02 LC)  Given a population mean of 41.8 with a standard…

(05.02 LC)  Given a population mean of 41.8 with a standard deviation of 5.2 and a sample size of 9, answer these questions: Part A: What is the standard deviation of the sampling distribution of x̄? Show your work. (5 points) Part B: What does the sample size need to be if you want the standard deviation of the sampling distribution of x̄ to be 2.6? Show your work. (5 points) (10 points)

(06.07 MC)  A statistician wants to determine the relationsh…

(06.07 MC)  A statistician wants to determine the relationship between typing speed, in words per minute, and the time, in minutes, it takes to type one page of a specific book. Twenty-five trials are completed and the correlation coefficient between typing speed and time is determined to be -0.622. Therefore, slower typing speed was related to greater time. How is the correlation affected if the units for time are changed from minutes to seconds? (3 points)