Answered step by step
Verified Expert Solution
Question
1 Approved Answer
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
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 oollege. values for X, such as 4.0. 2.1. 3.5, 2.9, and so on a focus group of students 1_ Population in the college 2. Sample X = the GPA of one student 3_ Parameter the mean GPA of all the students in the college 4- Stabs\": the mean GPA for the 5- Varlahle students in the focus group a. Data all the students in the college D BEBE 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: 0 convenience 0 cluster O systematic O stratified 0 simple random 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: O systematic O cluster stratified convenience O simple random Question 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 O cluster convenience stratified systematic 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.I What size would 1you _ like? [small. medium, large -- or tall. grande, . venti if you speak 1. Nmlnal Starbucks} 1 Ordinal How man'glr pumps of caramel flavor would 1you 3 |ntenral like? ID, 1, 2, 3. ...l 4. Ratio What kind of drink would you like? {regular coffee, latte. americano, etc.} DD Question 5 {1 point] A sample of five high school graduates has a median income of $50K. Four of the sampled incomes are $36K, $4?l{. $53K, and $30K. The inoome of the fifth member of the sample must he 0 $36K or less 0 $50K 0 $80K or more 0 None of the answer choices are correct - we can't tell from the information provided. Question F {1 point] Service clogs 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 oftheir ages change over the course of a months, assuming no dogs join or leave the class? 0 Decrease 0 Increase O Remain the same Question 3 {1 point] Service dogs begin training when thev 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 oftheirages change from now until March {6 months from now} assuming no dogs join or leave the class? Q Decrease 0 Increase O Remain the same Question 9 {1 point] Choose the data sets with the same standard deviation: 019.11.13.15 D4. 4. 4. 4+4 [324.61.13.10 [32. 2. 2. 3+ 3 C] 3.6.9.1215 Question 10 (1 point} What is the best measure of center for the following sample of quiz scores? [1, 35, 3?, 90 0 Median 0 Mean Question 11 {1 point] Determine if the given events are independent or not. HA1 - 1x3 P(B) = 1/3 P(A or B) = 1/2 P(A & B) = 1/6 O Independent 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 OIndependent Dependent D 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.S. degree. X P(x) 3 0.05 4 0.40 5 0.30 6 0.15 7 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)?Question 14 (1 point] What does a z-score measure? 0 How large a value is. as a multiple of the mean 0 How far a value is from the mean. in standard deviations G How manyr z's are in the name of the scientist conducting the studyr Question 15 (1 point] John took two exams and scored an 34 on both. [in the first exam. the mean score for the class was 3'2, and the standard deviation was 3. On the second exam, the mean score for the class was F0. and the standard deviation was it). Which exam did he do better on. compared to his classmates? 0 Exam 1 0 Exam 2 0 He did the same on both 0 It's not possible to tell with the information given 0 Doesn't matter, C's get degrees
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started