d. The p-value =(Please show your answer to%3D4 decimal places.)e. The p-value is ? O af. Based on this, we should Select an answer the nullhypothesis.g. Thus, the final conclusion is that ...The data suggest the populaton proportion issignificantly lower than 20% at a = 0.05, sothere is statistically significant evidence toconclude that the the percentage of allregistered voters who will vote in the upcomingelection will be lower than 20%.The data suggest the population proportion isnot significantly lower than 20% at a = 0.05, sothere is statistically insignificant evidence toconclude that the percentage of registeredvoters who will vote in the upcoming electionwill be lower than 20%.The data suggest the population proportion isnot significantly lower than 20% at a = 0.05, sothere is statistically significant evidence toconclude that the percentage of registeredvoters who will vote in the upcoming electionwill be equal to 20%. Only 20% of registered voters voted in the last election. Willvoter participation decline for the upcoming election? Of the360 randomly selected registered voters surveyed, 58 ofthem will vote in the upcoming election. What can beconcluded at the a = 0.05 level of significance?

For the given data perform z test for one proportion

Answered: hypothesis. g. Thus, the final…

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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Similar questions

Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = What is the correct result based on the data?
5
Statistics and Data Analysis
16
Consider the following statements: I. As far as the probability of a Type I error is concerned, a two-tailed hypothesis test is more accurate than a one-tailed hypothesis test. II. A point estimation procedure in a one sample scenario utilizes information in a sample to arrive at two points, one positive and one negative in order to estimate the population parameter of interest. a. I and II are both true. b. I and II are both false. c. I is true and II is false. d. I is false and II is true. e. I is false and II is sometimes true.
Which of the following statements below is incorrect about Type II error? The larger the effect size, the smaller the power of the test will be. For a given probability of type I error, the probability of type II error can be reduced by increasing the sample size. The power of a test is equal to 1-3, where represents the probability that a hypothesis test does not reject a false null hypothesis. The effect size measures the distance between the true population proportion and the value assumed for it in the null hypothesis.
Proportion Problem. A plan for an executive traveler's club has been developed by an airline on the premise that at least 5% of its current customers would qualify for membership. A random sample of 500 customers yielded 40 who would qualify. Using this proportion data, test at alpha = .01 the null hypothesis that the company's premise is correct, against the alternative that it is not correct. 1. What is the test statistic? d) What is the p-value of the test statistic?
ch.8 proportions question4 Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 143 with 65% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.C.I. =
You wish to test the following claim (H.) at a significance level of a = 0.005. You believe both populations are normally distributed, but you do not know the standard deviations for either. And you have no reason to believe the variances of the two populations are equal You obtain a sample - 19.1 from the first population. 7.1 from of size ni 23 with a mean of a1 You obtain a sample of size n2 the second population. 86.6 and a standard deviation of s1 20 with a mean of r2 96.5 and a standard deviation of s2 = a. What is the test statistic for this sample? test statistic = Round to 3 decimal places. b. What is the p-value for this sample? For this calculation, use p-value Use Technology Round to 4 decimal places.
Ch. 6.1 CI We examine the effect of different inputs on determining the sample size needed to obtain a specific margin of error when finding a confidence interval for a proportion. Find the sample size needed to give, with 95% confidence, a margin of error with +/- 6% when estimating a proportion. Within +/- 4%. Within +/- 1%. (Assume no prior knowledge about the population proportion p). Comment on the relationship between the sample size and the desired margin of error.
5 PART E Can we conclude that the median monthly rent for the apartments on the east side is less than what is stated on the website? YES OR NO
You want to know if there is a relationship between the age of undergraduate students and the number of books they read in a year, a survey is carried out with the following data a) Determine the Pearson coefficient and interpret the result b) State the null and alternative hypotheses c) With α= 5% perform the necessary calculations to accept or reject the null hypothesis.

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