Question 1 (1 point) Match the terms to the appropriate part of the scenario: A dean is interested in the mean GPA of students in his college. values for X, such as 4.0, 2.1, 3.5, 2.9, and so on 1. Population a focus group of students in the college 2. Sample the mean GPA for the students in the focus group 3. Parameter the mean GPA of all the 4. Statistic students in the college 5. Variable all the students in the college 6. Data X = the GPA of one student Question 2 (1 point) A study was done to determine the most preferred brand of dog food in Phoenix. The team conducting the survey went to a local dog park and surveyed all the dog owners who came to the park until they met their desired sample size. The sampling method was: O cluster simple random convenience stratified O systematic Question 3 (1 point) Megan needed to collect data for her stats class. She wrote a survey and posted a link to it on Facebook. Her sample consisted of the first 50 people who responded. The sampling method was: cluster stratified convenience systematic simple randomQuestion 4 (1 point) Acme Car Insurance wanted to survey their customers to determine their satisfaction with their coverage. Rather than survey everyone, they randomly picked a customer, and went down the roster calling every 15th customer afterwards. The sampling method was: O simple random stratified Osystematic O convenience cluster Question 5 (1 point) Starbucks baristas obtain a lot of information from customers. Match each part of an order with the type of measure scale used. What kind of drink would you like? (regular coffee, latte, americano, etc.) 1. Nominal How many pumps of 2. Ordinal caramel flavor would you like? (0, 1, 2, 3, ..) 3. Interval What size would you like? (small, medium, large = = or 4. Ratio tall, grande, venti if you speak Starbucks) Question 6 (1 point) A sample of five high school graduates has a median income of $50K. Four of the sampled incomes are $36K, $47K, $53K, and $80K. The income of the fifth member of the sample must be $36K or less $50K ) $80K or more () None of the answer choices are correct . we can't tell from the information provided.Question 7 (1 point) Service dogs begin training when they are 2 months old. A current class of puppies- in-training has dogs with ages from 2 months to 12 months. How will the mean of their ages change over the course of 6 months, assuming no dogs join or leave the class? Decrease Increase Remain the same Question 8 (1 point) Service dogs begin training when they are 2 months old. A current class of puppies- in-training has dogs with ages from 2 months to 12 months. How will the standard deviation of their ages change from now until March (6 months from now) assuming no dogs join or leave the class? Decrease Increase Remain the same Question 9 (1 point) Choose the data sets with the same standard deviation: 0 4, 4.4,4,47, 9, 11, 13, 15 2, 4, 6, 8, 10 3, 6. 9, 12, 15 2. 2. 2, 3, 3 Question 10 (1 point) What is the best measure of center for the following sample of quiz scores? 0, 85, 87, 90 Median MeanQuestion 11 (1 point) Determine if the given events are independent or not. P(A) = 1/3 P(B) = 1/3 P(A or B) = 1/2 P(A & B) = 1/6 O Independent O Dependent Question 12 (1 point) Determine if the given events are independent or not. P(A) = 0.80 P(A or B) = 0.88 P(B) = 0.40 Independent Dependent View hint for Question 12 Question 13 (1 point) The table below gives the probability distribution function for the number of years it takes to earn a B.5. degree. 0.05 0.40 0.30 0.15 0.10 What is the average number of years taken to complete a B.S. (i.e. the expected value for this discrete random variable)? O0.29 O 4.0 4.75 O 4.85 O 5.0Question 14 (1 point) What does a z-score measure? How large a value is, as a multiple of the mean How far a value is from the mean, in standard deviations () How many z's are in the name of the scientist conducting the study Question 15 (1 point) John took two exams and scored an 84 on both. On the first exam, the mean score for the class was 72, and the standard deviation was 8. On the second exam, the mean score for the class was 70, and the standard deviation was 10. Which exam did he do better on, compared to his classmates? Exam 1 Exam 2 O He did the same on both It's not possible to tell with the information given O Doesn't matter, C's get degrees Question 16 (1 point) The incubation period (the time between infection and first appearance of symptoms) for the Ebola virus is normally distributed with a mean of 12 days and a standard deviation of 4.5 days. According to the empirical rule, what percent of cases will show symptoms within 3 to 21 days? 34% ( 68% 95% 99.7% View hint for Question 16 Question 17 (1 point) The central limit theorem only applies to random variables with normal distributions. O True False