A research poll showed that 1282 out of 2040 randomly polled people in a country favor the death penalty for this convicted of murder. Assuming the conditions for the CLT were met, complete parts (a) and (b) below.Sample pSampleх95% CI0.628431(0.607462, 0.649401)112822040a. Using the technology output given, write out the following sentence.and(Round to three decimal places as needed.)I am 95% confident that the population proportion favoring the death penalty is between

Confidence interval:A range of values such that the population parameter can expected to contain for…

Answered: A research poll showed that 1282 out of…

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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According to DATAUSA, the homeownership rate in Wilmington, DE is 60%. A random sample of 25 residents in Wilmington, DE was selected. The standard error of the proportion is ________.
: A study is conducted to compare the effectiveness of three different teaching methods (A, B, and C) on exam scores of 30 students. The Friedman Test is performed, and the calculated chi-square statistic is 20. What is the p-value for this test?
In a memory test, the test subjects are given a large number and are asked to memorize it. Historical records show that 80% of test subjects pass the test. To pass the test, a subject must exactly repeat all the digits in the number after two hours. A random sample of 625 people to take the memory test is going to be chosen. Let p be the proportion of people in the sample who pass the test. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of P. 0 (b) Find the standard deviation of p. 0 (c) Compute an approximation for P(P >0.84), which is the probability that more than 84% of the people in the sample pass the test. Round your answer to four decimal places. 0 X
A marketing researcher introduces two toys to each of 50 girls and 50 boys. Of these: 20 girls choose toy 1 and 30 girls choose toy 2; 30 boys choose toy 1 and 20 choose toy 2. Set up a 2 x 2 contingency table and run a chi-square test. Look at the p-value. So - is there a significant sex difference in toy preference? Use this web-based calculator: Chi Square Calculator 2x2 (socscistatistics.com) Call row 1 girls and row 2 boys (arbitrary which row you call what), and call column 1 toy 1 and column 2 toy 2. Then enter the frequencies in each of the four cells. Then click on calculate.
A worm in my apple-Codling moths are a devastating insect pest for apples. Each spring, adult moths lay their eggs on or around developing appies. When the eggs hatch the larva, or wom, tunnels into the apple, where they feed on the fruit and develop for three to five weeks. Cain has developed a scanning machine to detect the presence of larvae in appies. If the apple is infested with larvae, the machine reports a positive result 84.3% of the time. If the apple is not infested, the machine reports a negative result 64.6% of the time Round all answers to 4 decimal places 1. Suppose that 8.2% of apples in an orchard are infested with larvae. Assume a theoretical population of 10,000 apples and construct the contingency table for this scenario Test Negative Infested Not infested Total Test Positive 2. What proportion of apples will test positive for larvae infestation? 3. What proportion of apples that test positive for larvae infestation would we expect to not actually be infested with…
A researcher is interested in the effect of the pandemic on social media use among college students. The researcher hypothesizes that college students spend more time on social media thanthey did before the pandemic. To test his hypothesis, he randomly selected 50 college students and asked how many hours do they spend on social media per day before and after the pandemic. a) What is the research question? b) What is/are the variable(s)? What graphs can be used to display the variable(s) visually? c) What statistical test can be used to answer the research question?
Numbers are given in this order: Observed count, expected count, contribution to chi square Find out the missing contribution to chi square for drug C, did not improve. Give a numeric answer to three decimal places
Q1-5: Given the following data from a sample of sizen= 7 12 7 49073 The third qoartile is: Select one: O a. 4 O b. 7 O c. 8 O d. 9
Help me find the sample size of a population of 500 using yamani formular
Please provide Handwritten answer
In a large city, 55% of people pass the drivers' road test. Suppose that every day, 200 people independently take the test a. What is the number of people who are expected to pass? The expected number is. (Round to the nearest whole number as needed.)

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