Facebook would like to study the demographics of the individuals that utilize their platform. Their analytics team took a random sample of 455 Facebook users and saw that 63 were teenagers. a. Use the PMACC process to construct a 95% confidence interval for the proportion of Facebook users that are teenagers. b. Does your interval support the claim that less than 10% of Facebook users are teenagers

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A: The claim is that 44% of parents who had children in grades K-12 were satisfied with the quality of…

Q: Several years ago, 50% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given claim: 50% of the parents who had children in grades K-12 were satisfied with the quality of…

Q: A health psychologist wants to determine if there is an average effect commonly called “the freshman…

A: Given : A health psychologist wants to determine if there is an average effect commonly called “the…

Q: joint USA Today/CNN/Gallup Poll in July 2020 indicated that of 832 white adults, 46% thought…

A: Given n=832 P=0.46

Q: ) When 415 junior college students were surveyed, 150 said they have a passport. Construct a 95%…

A:

Q: A local news outlet reported that 56% of 600 randomly sampled Kansas residents planned to set off…

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Q: In 2005, Health Canada claimed that 16.8% of Canadian adults are obese. A researcher wanted to check…

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Q: Source DF Age Error Total 2 45 47 SS MS 137.78 68.89 6899.54 153.32 7037.32 F 0.45 side ed H) State…

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A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

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A:

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A:

Q: Many people believe that criminals who plead guilty tend to get lighter sentences than those who are…

A:

Q: A Pew Internet Project Data Memo presented data comparing adult gamers with teen gamers with respect…

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Q: In 2013, Steve LeCompte, a stock market trader and analyst, did a study to see which TV…

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A: The formula for the confidence interval for the proportion is, Here, confidence level is 0.90. Use…

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A: given data sample size (n) = 2500favorable outcomes (x) = 725p = proportion of customers that are…

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A: Given Information : A board game club meets each week at the local library . People bring different…

Q: It is known that ticks in York County carry the Lyme disease.  In a representative sample of 200…

A: Let n=sample size, X=number of Carry disease. p^=x/n  X=167, n=200

Q: 1. In a recent poll 62 out of 149 randomly chosen students at Allen High School say they plan to buy…

A:

Q: Many people believe that criminals who plead guilty tend to get lighter sentences than those who are…

A:

Q: To devise effective marketing strategies it is helpful to know the characteristics of your…

A: Givensample size(n)=932x=543p^ =xn=543932=0.5826Confidence level(c)=95%α=1-0.95=0.05α2=0.025critical…

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A:

Q: A survey of 1010 college seniors working towards an undergraduate degree was conducted. Each student…

A: The provided information are:

Q: At a large university in Conway, South Carolina, the Dean wants to know what proportion of students…

A: We have given thatn = 200x = 145Confidence level (c) = 99% = 0.99Significance level (α) = 1 - c =  1…

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Q: A telephone poll of 1,000 adult Americans was reported in an issue of a news magazine. One of the…

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Q: sample of 624 applicants to the Durmstrang Institute of Sorcery, 133 were accepted. Construct a 90%…

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A: Given,n=4272X=897

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A:

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A: A. Null and alternate hypotheses: The investigator is specifically interested to test whether the…

Q: Several years ago, 43% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given  Several years ago, 43% of parents who had children in grades K-12 were satisfied with the…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.