Question 16A national publishing house claims that 27% of all weeklymagazine readers in South Africa read their publication.To test this daim at 5%. Significance level, if a surveyfound that 100 of a sample of 200 magazine readers saidthat they road the relevant publication Colculate theStatistic for the proportiona) 1.33b) 1.96c) - 0.9015.290.27

From the provided information, Sample size (n) = 200 From which 100 readers said that they read the…

Answered: A national publishing house claims that…

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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45. Which one of the following is not a common level of significance set in statistical analysis? a. 90% b. 50% c. 95% d. 99%
A consumer organization was concerned about the differences between the advertised sizes of containers and the actual amount of product. In a preliminary study, six packages of three different brands of margarine that are supposed to contain 500 ml were measured. The differences from 500 ml are listed here. Brand 1 Brand 2 Brand 3 1 1 3 2 3 4 4 3 2 1 4 4 What is the test value? Use 5% level of significance. a) 0.60 ОБ) 1.69 c) 2.69 d) 0.21 e) None of the answers are correct 2.
I need help for figuring out how to explain parts a and b.
Which of the following statistics are unbiased estimators of the population parameter? Select all that apply. A) Sample mean B) Sample proportion C) Sample range
View the attatched photo and select the correct answer for A. Then look at the questions below (B and C) and answer those using the data oe information in the photo. A) Answer A which is in the photo. B) Calculate the standardized test statistic. T = ? C) Calculate the P-value. P = ?
The scores of the students in the final examination are normally distributed with a mean of 75 and a standard of 5. Find the percentage of students who scored between 73 and 83? A 44.52% B) 60.06% c) 28.98% D) 15.54%
60% of students entering four-year colleges receive a degree within six years. Is this percent smaller than for students who play intramural sports? 128 of the 220 students who played intramural sports received a degree within six years. What type of test should you use? A) z-test for population mean B) z-test for population proportion C) t-test for population mean
In a recent survey of 157 WMU graduates, 117 students said that parking was too limited on campus. What is the estimate of the population proportion? What is the standard error of this estimate? Question 7 options: 1) Estimate of proportion: 0.745, Standard error: 0.0348. 2) Estimate of proportion: 0.255, Standard error: 0.0028. 3) Estimate of proportion: 0.745, Standard error: 0.0028. 4) The true population proportion is needed to calculate this. 5) Estimate of proportion: 0.255, Standard error: 0.0348.
The General Social Survey asks questions about one’s happiness in marriage. Is there an association between gender and happiness in marriage? Use the data in the table to determine if gender is associated with happiness in marriage. Treat gender as the explanatory variable. Female Male Very happy 7,609 7,942 Pretty happy 3,738 4,47 Not too happy 259 460 a) Construct a frequency marginal distribution b) What percentage of males feel not too happy? c) Is gender associated with or independent from happiness in marriage? Why
Given a set of normally distributed scores with the mean of 20.00 and SD of 5.00, what proportion of scores are a) between 10 and 28 b) between 15 and 32
Assume that a sample is used to estimate a population proportion p. Find the margin of errors E that corresponds to the given statistics and confidence level: 90% confidence; n=300; x=50
Consider the numbers 1, 2, 3, 4 assigned to values of a variable. The variable being measured is most likely: a) quantitative b) qualitative c) one for which computing the standard deviation would likely be appropriate d) one for which computing the median would definitely be inappropriate e) a and c

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