who parking permits. To do this, they first need to isolate what is causing the
ID: 3044222 • Letter: W
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who parking permits. To do this, they first need to isolate what is causing the lack of parking. A simple random sample of MSU students who own parking permits was h student was asked the following about the most recent time they parked on 2. MSU parking services are attempting to improve the parking situation for students available taken. Eac campus: the amount of time it took to find a parking spot (in minutes), the time of the day th parked (SB, E, or F) student attempted to park (morning, afternoon, or evening), and the type of lot in which they [4 pts] MSU parking services first decides to focus their attention on the relationship a. between the time it takes students to find a parking spot and the different times of day (morning, afternoon, or evening). What type of plot should we use to display this relationship? Circle all that apply. (A) Side-by-side dotplots (B) Segmented bar graph (C) Scatterplot (D) Side-by-side boxplots b. [3 pts] To what population can we generalize the results of this study? Cicle one. (A) All MSU students (B) All MSU students who own parking permits (C) Only the students in the sample (D) All people who own parking permits [3 pts] The sample mean amount of time it took to find a parking spot was 6.2 minutes with a standard deviation of 2.71 minutes. Write a sentence interpreting this standard deviation in context of the problem. c. Does Montana differ from the rest of the country in its preference for the Winter Olympics over the Summer Olympics? A 2018 study conducted by NBC found that 37% of Americans prefer the Winter Olympics to the Summer Olympics; the Montana Broadcasters Association believes that proportion differs among Montanans. To test this claim, they collected a representative sample of 1064 Montanans and recorded whether they prefer the Winter Olympics to the Summer Olympics. Of these 1064 Montanans, 469 preferred the Winter Olympics. 3. [3 pts] What is the parameter of interest for this study? Circle one. (A) The proportion of all Montanans that prefer the Winter Olympics to the Summer Olympi (B) The proportion of Montanans in our sample that prefer the Winter Olympics to the a. Summer Olympics (C) The proportion of all Americans that prefer the Winter Olympics to the Summer Olympi (D) The entire Montana populationExplanation / Answer
1. The are two variables one is time and the other is different times of day. We want to observed the relationship between them so we need to plot scatter plot
2) The correct option is B
Because the sample is taken from the MSU students who own parking permits.
3) It is given that the sample mean = 6.2 minutes and standard deviation is 2.71 minutes. This means that the time takes to find the parking place as an average 6.2 minutes but there are some variation that is some of the students find parking place in less than 6.2 minutes and some needs more than 6.2 minutes.
3 (a) The correct option is A) because the study is restricted for Montana and we are interested to study the proportion .
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