Test the claim that the proportion of people who own cats is significantly different than 20% at the 0.02significance level.The null and alternative hypothesis would be:Ho: 0.2 Ho:p 0.2 Ho: < 0.2H₁:μ< 0.2 H₁:p ‡ 0.2 H₁:μ> 0.2OOOThe test is:left-tailed two-tailed right-tailedOOHo:p <0.2 Ho:μ = 0.2 Ho:p> 0.2 ofH₁:p> 0.2 H₁: 0.2 H₁ :p < 0.2OOBased on a sample of 500 people, 22% owned catsThe p-value is:(to 2 decimals)

Answered: Image /qna-images/answer/abb08795-73c0-45d6-a573-d4ce9438829d.jpg

Answered: est the claim that the proportion 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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Seventy-six Starbucks food items were analyzed for the calorie and carbohydrate content. We used linear regression to explore the relationship between the number of calories and amount of carbohydrates (in grams) Starbucks food menu items contain. The estimated regression equation with carbohydrates as the response variable and the calories as the explanatory variable is ŷ = 8.94 + 0.11x, and summary statistics of the two variables is provided below. variable min Q1 median Q3 max mean sd n missing calories 80 300 350 420 500 338.8 105.4 77 carbohydrates 16 31 45 59 80 44.9 16.6 77
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=20.5σ=20.5. You would like to be 99% confident that your estimate is within 2 of the true population mean. How large of a sample size is required?
A simple random sample of size n=15 is drawn from a population that is normally distributed. The sample mean is found to be x=31.8 and the sample standard deviation is found to be s=6.3. Determine if the population mean is different from 26 at the α=0.01 level of significance. P VALUE??
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You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=57.4σ=57.4. You would like to be 99% confident that your estimate is within 1.5 of the true population mean. How large of a sample size is required?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=55.5σ=55.5. You would like to be 99% confident that your estimate is within 5 of the true population mean. How large of a sample size is required?
A nutritionist claims that the mean tuna consumption by a person is 3.1 pounds per year A sample of 90 people shows that the mean tuna consumption by a person is 2.9 pounds per year. Assume the population standard deviation is 1.19 pounds. At a= 0.05, can you reject the claim? (a) Identify the null hypothesis and alternative hypothesis. O A. Ho H>3.1 Ha µs3.1 B. H, p=3.1 H p#3.1 OC. H, ps3.1 O D. Ho ps2.9 Ha p> 2.9 O E. H, p>2.9 H ps2.9 tents OF H, H 29 H p=2.9 (b) Identify the standardized test statistic. a Library (Round to two decimal places as needed.) Success ple Resources (1,1) More or Success View an example Get more help- Clear all Check answer Help me solve this Copyright 2021 Pearson Education InC. All rights reserved. Terms of Use Privacy Policy Permissions I Contact Us | 64°F A 4 8:30 PM 12/6/202 99+ Type here to search 1005/17 PriSc Insert Fa F9 F10 F12 F6 F7 F5 Num
6. A population has a mean of µ = 80 and a standard deviation of o = 20. %3D a. Would a score of X = 70 be considered an а. extreme value (out in the tail) in this sample? b. If the standard deviation were o = 5, would a score of X = 70 be considered an extreme value?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=72.1σ=72.1. You would like to be 99% confident that your estimate is within 2 of the true population mean. How large of a sample size is required?
A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose per deciliter (1/10 of a liter) of blood. Suppose that after a 12-hour fast, the random variable x will have a distribution that is approximately normal with mean μ = 86 and standard deviation o = 23. Note: After 50 years of age, both the mean and standard deviation tend to increase. For an adult (under 50) after a 12-hour fast, find the following probabilities. (Round your answers to four decimal places.) USE SALT (a) x is more than 60 1292 (b) x is less than 110 0.9236 X (c) x is between 60 and 110 0.7526 (d) x is greater than 125 (borderline diabetes starts at 125) 6.3

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