Suppose that you want to test a null hypothesis that states that Math and Chemistry majors do not display any difference in their grades in college-level English literature courses. If you reject that hypothesis when, in actuality, it is true, you will have made which type of error? Select one: O a. Type I error O b. Type Il error c. Standard error O d. Sampling error

Suppose that you want to test a null hypothesis that states that Math and Chemistry majors do not display any difference in their grades in college-level English literature courses. If you reject that hypothesis when, in actuality, it is true, you will have made which type of error? Select one: O a. Type I error O b. Type Il error c. Standard error O d. Sampling error

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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A researchers is interested in the amount of sleep an individual receives after consuming a sleeping aid (Melatonin, Valerian root, and Placebo). The researcher randomly selects individuals into either group. However, some individuals drop out of the study which results in unequal sample sizes. Melatonin: n=6, M=14, T=84, SS=60 Valerian: n=10, M=13, T=130, SS=90 Placebo: n=4, M=9, T=36, SS=37 N=20, G=250, x2=3377 State the conclusion of these findings.
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29 An ecologist selected a random sample of 30 prairie dogs from a colony and found that the mean mass of the prairie dogs in the sample was 0.94 kilograms (kg) with an associated margin of error of 0.12 kg. Which of the following is the best interpretation of the ecologist's findings? A) All prairie dogs in the sample have a mass between 0.82 kg and 1.06 kg. B) Most prairie dogs in the colony have a mass between 0.82 kg and 1.06 kg. C) Any mass between 0.82 kg and 1.06 kg is a plausible value for the mean mass of the prairie dogs in the sample. D) Any mass between 0.82 kg and 1.06 kg is a plausible value for the mean mass of the prairie dogs in the colony.
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I got an answer of 32 and it kept telling me wrong. I don't know what I'm doing wrong
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disproportionately often. In fact, research has shown that if you randomly draw a number from a very large data file, the probability of getting a number with "1" as the leading digit is about 0.301. Now suppose you are an auditor for a very large corporation. The revenue report involves millions of numbers in a large computer file. Let us say you took a random sample of n = 223 numerical entries from the file and r = 48 of the entries had a first nonzero digit of 1. Let p represent the population proportion of all numbers in the corporate file that have a first nonzero digit of 1.(i) Test the claim that p is less than 0.301. Use ? = 0.05. (a) What is the level of significance?State the null and alternate hypotheses. H0: p < 0.301; H1: p = 0.301H0: p = 0.301; H1: p > 0.301 H0: p = 0.301; H1: p < 0.301H0: p = 0.301; H1: p ≠ 0.301 (b) What sampling distribution will you use? The standard normal, since np > 5 and nq > 5. The standard normal, since np < 5 and nq <…
. The term sample usually refers to a sample that ___ - Consists of people with chemical dependency problems - Uses the same group of individuals with a before/after measurement - Requires a dependent variable for hypothesis testing - Is randomly selected from two dependent populations