In research about the population of a county with 100,000 inhabitants, a sample of 3000 households was selected to be interviewed. For 1200 of the 3000 households thatresearchers attempted to contact, there was no one home willing to participate. For this survey, the nonresponse rate was(Give your answer as a whole number.)eBook

The number of households not willing to participate in the survey is 1200.

Answered: In research about the population of a…

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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The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to find out the fraction of people who appear on the list that are actually caught. Step 1 of 2 : Suppose a sample of 716 suspected criminals is drawn. Of these people, 279 were captured. Using the data, estimate the proportion of people who were caught after being on the 10 Most Wanted list. Enter your answer as a fraction or a decimal number rounded to three decimal places.
A teacher surveyed the students in one of his algebra classes, asking how many hours they spend watching TV shows, movies, and videos on a weekday. Their responses are given. Complete parts (a) through (e) below. 10 3 4 2 35 0 2 1 5 2 4 2 1 0 1 2 3 743 3 4 b. One student wrote "3-9." What value would represent this response well? Include the value in the sample for parts (c) through (d). A good value to represent the range 3-9 is c. Construct a dotplot. Choose the correct graph below. OA. TV, Movie, and Video Viewing Time O B. TV. Movie, and Video Viewing Time 02 4 8. 10 6. Hours 10 Hours OC. TV, Movie, and Video Viewing Time OD. TV. Movie, and Video Viewing Time 4. Hours 8 10 2 8. 10 C Hours d. What proportion of the observations are between 1 and 3 hours, inclusive? The proportion of the observations between 1 and 3 hours, inclusive is (Round to the nearest thousandth as needed) e. What proportion of the observations are less than 5 hours? Activate Windows Go to Settings to activate…
A polling company reported that 19% of 1018 surveyed adults said that secondhand smoke is "quite annoying." Complete parts (a) through (d) below. a. What is the exact value that is 19% of 1018? The exact value is. (Type an integer or a decimal.)
The Humane Society is interested in finding out how many households in America have at least one cat. How many households must be surveyed to be 95% confident that the estimate will be within 4% of the true population percentage?
Suppose you are asked to toss a coin 16 times and calculate the proportion of the tosses that were heads?
The state education commission wants to estimate the fraction of tenth-grade students that have reading skills at or below the eighth-grade level. Step 1 of 2 : Suppose a sample of 1134 tenth graders is drawn. Of the students sampled, 226 read at or below the eighth-grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth-grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.
An inpatient coder in the HIM department is expected to code 400 charts each month. A total of three inpatient coders are employed full time and a total of 1,250 charts were coded in September. Of these 20 failed to pass quality screening.a. What percentage of charts was accurately coded? (compute to the first decimal) %b. How many charts could fail the screening if a 99% accuracy rate were required?
In 2014, what ratio of construction worker injuries resulted in death?a.1 out of 5Correctb.1 out of 50Incorrectc.1 out of 100Incorrectd.1 out of 1,000
A study was conducted of pleas made by 1,025 criminals. Among those criminals, 953 pled guilty, and 395 of them were sentenced to prison. Among the 72 other criminals, who pled not guilty, 59 were sent to prison. Complete (a) through (d). a. What percentage of the criminals pled guilty? % (Round to the nearest tenth as needed.) b. What percentage of the criminals were sent to prison? % (Round to the nearest tenth as needed.) c. Among those who pled guilty, what is the percentage who were sent to prison? % (Round to the nearest tenth as needed.) d. Among those who pled not guilty, what is the percentage who were sent to prison? % (Round to the nearest tenth as needed.) ←
An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. Step 1 of 2 : Suppose a sample of 1217 new car buyers is drawn. Of those sampled, 267 preferred foreign over domestic cars. Using the data, estimate the proportion of new car buyers who prefer foreign cars. Enter your answer as a fraction or a decimal number rounded to three decimal places.
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The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Step 1 of 2: Suppose a sample of 333 tenth graders is drawn. Of the students sampled, 260 read above the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places. Step 2 of 2: Suppose a sample of 333 tenth graders is drawn. Of the students sampled, 260 read above the eighth grade level. Using the data, construct the 80% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level. Round your answers to three decimal places.

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