You may need to use the appropriate technology to answer this question.Use the sample data below to test the hypothesesHo:P1 = P2 = P3H3i not all population proportions are equalwhere p, is the population proportion of Yes responses for population i.PopulationsResponse13Yes140150106No90150114Find the value of the test statistic. (Round your answer to three decimal places.)Find the p-value. (Round your answer to four decimal places.)p-valueUsing a 0.05 level of significance, state your conclusion.O Do not reject Ho. We conclude that not all population proportions are equal.Do not reject Ho: We cannot conclude that not all population proportions are equal.Reject Ho. We conclude that not all population proportions are equal.O Reject Ho: We cannot conclude that not all population proportions are equal.

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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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Game Attendance An athletic director suggests the median number for the paid attendance at 18 local football games is 3000. The data for a sample are shown. At a 0.05, is there enough evidence to reject the claim? If you were printing the programs for the games, would you use this figure as a guide? 4231 5605 2556 5228 5586 3675 3867 3610 4679 5676 5779 4745 2907 4925 4785 4551 3112 3688 Send dats to Excel Part: 0/6 Part 1 of 6 (a) State the hypotheses and identify the claim with the correct hypotheses Ho (Choose one) (Choose one) This hypothesis test is a (Choose one) test. 00000-0 D-D
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of wormen who own cats. You sample 160 men, and 30% own cats. You sample 140 women, and 45% own cats. Find the test statistic, rounded to two decimal places. Submit Question
You gather data from two local churches about the average offering (a monetary donation to the church)that is collected at a weekly service. You want to see whether the average offering given at one churchis the same as the average offering at another church. The number of people who attend Church 1 is201, and the average amount offered is $12.50. The number of people who attend Church 2 is 350, andthe average amount offered is $11.87. The sample standard deviations for Church 1 and Church 2 are$3.15 and $4.57, respectively. (a) What is the hypothesis you want to test? (b) Calculate the test statistic and test your hypothesis at the 95 and 99 percent confidence levels. (c) Pretend that the sample means and standard deviations remain the same, but that the numberof people sampled at Church 2 was 201 instead of 350. Does your test-statistic change? Does the critical value change?
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.)
You want to obtain a sample to estimate the proportion of a population that possess a particular genetic marker. Based on previous evidence, you believe approximately 69% of the population have the genetic marker. You would like to be 95% confident that your estimate is within 5% of the true population proportion. Do not round mid-calculation and be careful when you round your answer. How large of a sample size is required? n=
You may need to use the appropriate technology to answer this question. Use the sample data below to test the hypotheses H0: p1 = p2 = p3 Ha: not all population proportions are equal where pi is the population proportion of Yes responses for population i. Response Populations 1 2 3 Yes 145 150 101 No 95 150 109 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value =
A publisher reports that 61 % of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 320 found that 55 % of the readers owned a particular make of car. Determine the P-value of the test statistic. Round your answer to four decimal places. Answer How to enter your answer (opens in new window) Tables Keypad Keyboard Shortcuts
Claim: The proportion of children who play sports is less than 55%. Sample statistics include n = 1,320 subjects with 33% saying that they play a sport. Find the value of the test statistic. Round your answer to two decimal places, if needed.
Carmen and Rosanna are two employees in an electronics store. The store manager has put an emphasis on increasing the number of applications for the store credit card. The manager randomly selected 24 weeks for each employee and recorded the number of completed applications for each week, which is provided in the samples below. Each employee completed 21 applications in one of the weeks selected. Use Excel to calculate each employee's z-score for completing 21 applications. Round your answers to two decimal places. Carmen Rosanna11 56 1115 613 185 1114 1416 521 208 1110 97 1416 1513 1310 619 2118 95 1817 310 126 1712 1214 419 1017 8
You read a newspaper article that says that 74% of households in your town participate in a recycling program. To test that statement at the 10% significance level, you randomly select 54 households in town and you find that 35 of them participate in the recycling program. Ho: P=0.74 Ha:P=/ 0.74 Find the P-value. Round your answer to 3 decimal places.
The 2004 General Social Survey asked a random sample of 977 adult Americans how often they feel rushed, with three options to choose from: always, sometimes, and never. The sample result was that 304 of the 977 people responded "always." Calculate the value of the test statistic by hand. Round the sample proportion and the hypothesized value of the proportion to THREE decimal places. Round the final answer to TWO decimal places.
Students at the University of Michigan frequently talk about the freshly baked chocolate chip cookies from MoJo. A UM student wishes to investigate some questions specifically about the chocolate chip cookies at MoJo, but needs the help of a Stats 250 student. For each description of a research question below, select the one corresponding statistical analysis technique most appropriate for addressing that research question.

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