A survey to find out if families living in a certainmunicipality are in favor of No mask No entry will beconducted. To ensure that all groups according to theirincome are represented, respondents will be divided intohigh-income (Class A), middle (Class B), and low income(Class C).Find the sample size using Slovin's formula and completethe given table. Solve for the value with the "?".n=N/ (1+Ne2)No. ofFamilies (N) Samples (n)Number ofSTRATAClass A1000.00Class B1500.00?Class C2500.00TotalAnswer:

Given: Strata: class A, class B, class C No. of Families (N)

Answered: A survey to find out if families living…

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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Save Suppose a random sample of n = 390 teenagers 13 to 17 years of age was asked if they use social media. Of those surveyed, 276 stated that they do use social media. Find the sample proportion of teenagers 13 to 17 years of age who use social media. The sample proportion is p= (Round to three decimal places as needed.)
Please answer questions D and E for me
Suppose a random sample of n = 350 teenagers 13 to 17 years of age was asked if they use social media. Of those surveyed, 280 stated that they do use social media. Find the sample proportion of teenagers 13 to 17 years of age who use social media. The sample proportion is p= (Round to three decimal places as needed.) ...
Determine the sample size associated with the following formula. Remember to always round up to the next highest whole number. ?=[(1.96)⋅(3.56)0.16]2n=[(1.96)⋅(3.56)0.16]2
374 is 22% of the sample size. Find n
Random samples of students at 107 four-year colleges were interviewed several times since 1998. Of the students who reported drinking alcohol, the percentage who reported bingeing at least three times within the past two weeks was 41.1% of 336 students in 1998 and 21.6% of 843 students in 2004. a. Estimate the difference between the proportions in 2004 and 1998, and interpret. b. Find the standard error for this difference. Interpret it. c. Define the two relevant population parameters to compare in the context of this exercise. d. Construct and interpret a 90% confidence interval to estimate the true difference. e. State the assumptions for the confidence interval in part d to be valid. ... A. The number of students in the population in 2004 who reported drinking alcohol that binged at least three times within the past two weeks. B. The proportion of the student population in 1998 who reported drinking alcohol that binged at least three times within the past two weeks. C. The number…
Suppose that you calculated the sample size needed to estimate a population proportion within a given margin of error and the answer came out to n = 115.26. How many items should be sampled? O 115 O 100 O 116 O 115.26
Use the results from a survey of a simple random sample of 1001 adults. Among the 1001 respondents, 67% rated 13 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). 20 a. Identify the actual number of respondents who rated themselves as above average drivers. (Round to the nearest whole number as needed.)
Lisa's scores on tests for the assessment class are 93, 89, 87, and 83. She needs an 89.5 average to obtain an "A" in the class. Assuming that all tests, including the final, are equally weighted, what score must she obtain on the final exam to earn an "A"? CA Vimsi l
Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 95% confidence that your error is no more than 0.03.
advocacy organization surveys 966 citizens of country A and 186 of them reported being born in another country. Similarly, 177 out of 1213 citizens of country B reported being foreign-born. The researchers want to test if the proportions of foreign born are the e in country B as in country A. Complete parts a through c below. What is the difference in the sample proportions, p, - p2, of foreign born residents from both countries? Assume p, is the proportion of foreign born residents from country A and p, is the proportion of foreign born residents from country B. difference in the sample proportions, p1-P2, is und to three decimal places as needed )

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