Match each of the following to the type of sampling technique used:The researchers list all of the heart attack patients and measure thecholesterol level of every 25th person on the list.The researchers list all of the heart attack patients. They then measurethe cholesterol levels of randomly selected patients.The researchers go to one hospital on a given day and measure thecholesterol level of the heart attack patients at that time.The researchers divide the heart attack patients based on race, and thenmeasure the cholesterol levels of randomly selected patients in each racegroupingThe researchers randomly select 5 hospitals in the U.S. then measurethe cholesterol levels of all the heart attack patients in each of thosehospitals.a. systematic sampleb. convenience sampleC. stratified sampled. cluster samplePrive. simple random sampleTerrOCT21MacBook Pcesc000000E1F2E3F4F5F6

Solution Simple Random Sampling A simple random sample (SRS) of size n is a sample that is selected…

Answered: Match each of the following to the type…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Sherelle and Venita find two bags of coins in their grandmother's attic. Each girl selects a bag, takes a random sample of 20 coins from that bag, and lists the dates of those coins as the number of years since 1900. Here are the results. Sherelle: 72. 56. 81. 84. 75, 26, 39. 62. 65. 66, 85, 71. 74, 68, 73. 66. 83. 60, 58, 72 Venita: 45, 65, 73, 57. 79. 66. 69. 75. 51. 44. 53. 69. 58.77. 51. 55. 53. 78, 70, 62
The histogram below gives the length of service of members of the Department of Mathematics and Statistics at a particular university. The classes, in years of service, are 0-4.9, 5-9.9, etc., and the vertical axis represents the number of faculty. (a) What percent of the department faculty have 5 or more years of service? (answer in %) (b) If a member of the department is chosen at random to serve on a university committee, what is the probability (in decimal form) that the chosen representitive will have between 10 and 25 years of service? (c) What is the probability the representative above will have less than 15 years of service given that the person has less than 20 years of service?
Brad and Lena are recording their classmates' eye color for a statistics assignment. In Brad's class, 3 out of the 25 students have green eyes. In Lena's class, 2 out of the 20 students have green eyes. Which class has the greater ratio of green-eyed students to total students?
Use the results from a survey of a simple random sample of 1155 adults. Among the 1155 respondents, 85% rated themselves as above average drivers. We want to test the claim that of adults rate themselves as above average drivers. Complete parts (a) through (c). a. Identify the actual number of respondents who rated themselves as above average drivers. (Round to the nearest whole number as needed.) b. Identify the sample proportion and use the symbol that represents it. (Type an integer or a decimal rounded to two decimal places as needed.) c. For the hypothesis test, identify the value used for the population proportion and use the symbol that represents it. = (Type an integer or a decimal rounded to two decimal places as needed.) G
Decide whether the sampling method is biased or unbiased. Explain your results:
The Bangor Humane Society tracks cat adoptions closely. They sample 54 people who looked at cats this month and find that 36 of them adopted cats. What is the sample proportion (p-bar)? Round your answer to 2 decimal places.
Name the type of sampling: Ashley got a list of all the students in the school and used a random number generator to select the students to be surveyed.
You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 99% confident that the sample percentage is within 3.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. n = 1356 (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 31% of air passengers prefer an aisle seat. n = (Round up to the nearest integer.)
As part of a sixth-grade class project the teacher brings to class a large jar containing 200 gumballs of two different colors: red and green. Andy is asked to draw a sample of his own choosing and estimate the number of red gumballs in the jar. Andy draws a sample of 25 gumballs, of which 15 are red and the rest are green. Use Andy's sample to estimate the number of red gumballs in the jar. Answer:
Solve the last question please
In order to study the mean blood pressure of people in his town, Richard samples the population by dividing the residents by age and randomly selecting a proportionate number of residents from each age group. Which type of sampling is used?
Rangers tagged and released 250 small mouth bass into a Round Lake. A month later, fishermen on the lake were surveyed. They reported catching 50 small mouth bass, 5 of which had tags. Using this sample, estimate the small mouth bass population in the lake.

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