sta135-test3-practice-nokey-16

# sta135-test3-practice-nokey-16 - Practice Test 3(not for...

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1. 2. 3. Student: _____________________ Date: _____________________ Instructor: David Roach Course: Introduction to Statistics Assignment: Practice Test 3 (not for credit) An animal shelter reported that it currently has dogs and cats available for adoption; of the dogs and of the cats are male. Are the species and sex of the animals independent? Explain. 24 56 6 35 Select the correct choice below and fill in the answer boxes within your choice. (Type integers or simplified fractions.) A. , because of the dogs are male and of the cats are male. No B. , because of the dogs are male and of the cats are male. Yes You are dealt a hand of three cards, one at a time. Find the probability of each of the following. a) The first you get is the third card dealt. spade b) Your cards are all . hearts c) You get no . red cards d) You have at least one . heart a) The probability that the first you get is the third card dealt is . spade (Round to three decimal places as needed.) b) The probability that your cards are all is . hearts (Round to three decimal places as needed.) c) The probability that you get no is . red cards (Round to three decimal places as needed.) d) The probability that you have at least one is . heart (Round to three decimal places as needed.) (1) cluster systematic stratified simple random Fill in the blank. A friend of yours in your intro stats class obtains permission to randomly sample the University student body to conduct a satisfaction survey on some recent changes to the enrollment process. She randomly samples 50 freshmen, 50 sophomores, 50 juniors, and 50 seniors. This is an example of a __________ sample. A friend of yours in your intro stats class obtains permission to randomly sample the University student body to conduct a satisfaction survey on some recent changes to the enrollment process. She randomly samples 50 freshmen, 50 sophomores, 50 juniors, and 50 seniors. This is an example of a (1) sample. Practice Test 3 (not for credit) 1 of 15 10/28/2016 10:43 AM

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4. Administrators at a university were interested in estimating the percentage of students who are the first in their family to go to college. The university student body has about members. For each scenarios a through c, identify the kind of samples used by the university administrators. 43,000 a) Select several dormitories at random and contact everyone living in the selected dorms. Choose the correct answer below. systematic sample multi-stage sample stratified sample cluster sample b) Using a computer-based list of registered students, contact freshmen, sophomores, juniors, and seniors selected at random from each class. Choose the correct answer below. 200 200 200 200 systematic sample multi-stage sample stratified sample cluster sample c) Using a computer-based alphabetical list of registered students, select one of the first names on the list at random, and then contact the student whose name is names later, and then every th name after that. Choose the correct answer below.
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