A Gallup Poll in June 2019 asked 1015 randomly sampled adults living in the United States about their beliefs on how humans originated. Here is a tableof their responses:ResponseCount(1) Humans evolved with God guiding335(2) Humans evolved but God had no part in the223process(3) God created humans in their present form406(4) Other/No opinion51Ten years prior, 32% of U.S. adults believed that humans evolved with God guiding, 15% believed that humans evolved but God had no part in theprocess, 46% believed that God created humans in their present form, and 7% believed something else or had no opinion.Has the distribution of beliefs changed since 2009? The conditions for this test are satisfied because (select all of the correct options):The sample size is greater than 30.This was a random sample so observations can be considered to be independent.The distribution is nearly normal.All expected counts are at least 5.

The chi-square goodness of fit test can be used to determine whether a sample distribution follows…

Answered: A Gallup Poll in June 2019 asked 1015…

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 Gallup Poll in June 2019 asked 1015 randomly sampled adults living in the United States about their beliefs on how humans originated. Here is a table of their responses: Response Count (1) Humans evolved with God guiding 335 (2) Humans evolved but God had no part in the 223 process (3) God created humans in their present form 406 (4) Other/No opinion 51 Ten years prior, 32% of U.S. adults believed that humans evolved with God guiding, 15% believed that humans evolved but God had no part in the process, 46% believed that God created humans in their present form, and 7% believed something else or had no opinion. Has the distribution of beliefs changed since 2009?
Researchers wondered if there was a difference between males and females in regard to some common annoyances. They asked a random sample of males and females, the following question: "Are you annoyed by people who repeatedly check their mobile phones while having an in-person conversation?" Among the 505 males surveyed, 171 responded "Yes"; among the 522 females surveyed, 202 responded "Yes." Does the evidence suggest a higher proportion of females are annoyed by this behavior? Complete parts (a) through (g) below. C -0.0484 ő 0 0.0484 (e) Determine the P-value based on the model from part (d). First find the test statistic for this hypothesis test. (Round to two decimal places as needed.)
Two hundred students were sampled in the College of Engineering. It was found that: 137 take math, 50 take history, 124 take English, 33 take math and history, 29 take history and English, 92 take math and English, 18 take math, history and English. From the given information, there are a. Blank 1 students taking neither math nor history. b. Blank 2 students taking at least 2 subjects. c. Blank 3 students taking no more than one subject.
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
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Your group is expected to interview at least 40 random persons about their preference for shopping online and whether they would be interested in such services. Record the following for each respondent: Age Gender Whether they go shopping at the supermarket/pharmacy. How many times they shop at the supermarket/pharmacy per month. Would they be interested in purchasing items from the supermarket/pharmacy online or through a mobile application? Would they be willing to pay a subscription fee to utilize this service? If yes what is the maximum fee that they would be willing to pay. The amount of money they are willing to pay to have the goods delivered to them. In the absence of a subscription fee or delivery fee, would they be willing to pay a marginally higher price for the good purchased online? If yes, what percentage would be reasonable [group in the following way: less than 1% higher, 1% - 5% higher, over 5% higher] Respondent Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 1 28 F YES 3 NO NO $5…
As part of a study on how people of different ages use mobile technology, each person in a sample of 258 cell phone users age 20 to 39 was asked if they use their cell phones to stay connected while they are in bed. The same question was also asked of each person in a sample of 129 cell phone users age 40 to 49. In the 20 to 39 years age group, 168 people indicated that they do stay connected while they are in bed, whilst in the 40 to 49 years old age group, 61 people stay connected while in bed.Let: ??̂ 1 = Proportion of cell phone users age 20 to 39 who stay connected while they are in bed ??̂ 2 = Proportion of cell phone users age 40 to 49 who stay connected while they are in bed ??̂= Pooled proportion of cell phone users who stay connected while they are in bed
You create three versions of a survey, each with different ways of phrasing the questions (positive, negative, or neutral). You randomly assign participants to one of the three surveys, each of which has 20 items for which participants rate their agreement. After collecting the surveys, you calculate an average agreement score for each participant. If testing hypotheses about question phrasing on agreement, it would be most appropriate to calculate a. 1) O One-way (independent) ANOVA ›2)Repeated measures ANOVA 3) factorial ANOVA Factorial ANOVA
As part of a study on how people of different ages use mobile technology, each person in a sample of 258 cell phone users age 20 to 39 was asked if they use their cell phones to stay connected while they are in bed. The same question was also asked of each person in a sample of 129 cell phone users age 40 to 49. In the 20 to 39 years age group, 168 people indicated that they do stay connected while they are in bed, whilst in the 40 to 49 years old age group, 61 people stay connected while in bed.Let: ??̂ 1 = Proportion of cell phone users age 20 to 39 who stay connected while they are in bed ??̂ 2 = Proportion of cell phone users age 40 to 49 who stay connected while they are in bed ??̂= Pooled proportion of cell phone users who stay connected while they are in bed
Which answer is it?
In a series of studies, Sebastian Deri and his colleagues (2017) asked multiple groups about the number of friend groups they had and how often they attended different social events. They then asked participants how they thought their own numbers compared to other people's: Did participants see themselves as less social, the same as, or more social than others? In the first study, the researchers reported that: "Three hundred four participants from Amazon's Mechanical Turk (150 women; Mage = 37.1; 78% White, 10% Black, and 6% Asian) completed a survey in exchange for modest payment" (p. 860). What do the researchers mean by "Amazon's Mechanical Turk" with respect to their sample of participants? O A. An archival data set that already exists and from which researchers can use data O B. An online tool that researchers can use to recruit people to participate in research in exchange for a small payment O C. An e-book sold by Amazon that includes contact information for possible…
As part of a study on how people of different ages use mobile technology, each person in a sample of 258 cell phone users age 20 to 39 was asked if they use their cell phones to stay connected while they are in bed. The same question was also asked of each person in a sample of 129 cell phone users age 40 to 49. In the 20 to 39 years age group, 168 people indicated that they do stay connected while they are in bed, whilst in the 40 to 49 years old age group, 61 people stay connected while in bed. Let: = Proportion of cell phone users age 20 to 39 who stay connected while they are in bed ??̂ 2 = Proportion of cell phone users age 40 to 49 who stay connected while they are in bed ??̂= Pooled proportion of cell phone users who stay connected while they are in bed

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