A large university is curious if they should build another cafeteria. They plan to survey a sampleof their students to see if there is strong evidence that the proportion interested in a meal plan ishigher than 40%, in which case they will consider building a new cafeteria.Let p represent the proportion of students interested in a meal plan. Here are the hypothesesthey'll use:Ho: p ≤ 0.4Ha:p> 0.4Which of the following would be a Type II error in this setting?A. More than 40% are actually interested, and they don't conclude that more than 40% areinterested.B. More than 40% are actually interested, and they conclude that more than 40% are interested.C. At most 40% are actually interested, and they conclude that more than 40% are interested.D. At most 40% percent are actually interested, and they conclude that less than 40% areinterested.OAOCOBSOD

The question is about type II error Given : Null and alt. hypo : H0 : p ≤ 0.4Ha : p > 0.4

Answered: A large university is curious if they…

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 previous studies, 12% of the U.S. population is left-handed. Not knowing this, a high school student claims that the percentage of left-handed people in the U.S. is 14%. The student is going to take a random sample of 1650 people in the U.S. to try to gather evidence to support the claim. Let p be the proportion of left-handed people in the sample. Answer the following. (If necessary, consult a list of formulas.) ✔ (a) Find the mean of p. P. 0 (b) Find the standard deviation of p. (c) Compute an approximation for P (P<0.14), which is the probability that there will be 14% or fewer left-handed people in the sample. Round your answer to four decimal places. X
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Snoqualmie” is a name shared by a waterfall and a tribe of Native Americans. In a study of the cultural importance of the waterfall, two groups of the Snoqualmie tribe were randomly surveyed. One group consisted of Snoqualmie members living less than 25 miles from the waterfall. Another group consisted of Snoqualmie members living more than 25 miles from the waterfall. The researchers asked each member to rate the cultural importance of the waterfall as low, medium, or high. Data from the study are presented in the following table. Members Living More Than 25 Miles from the Waterfall Members Living Less Than 25 Miles from the Waterfall Total Low 25 17 42 Medium 8 21 29 High 5 12 17 Total 38 50 88 If the distributions of ratings are the same for those Snoqualmie members living less than 25 miles from the waterfall and those living more than 25 miles from the waterfall, which of the following is equal to the expected count of members living less than 25 miles from the…
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