According to the 2010 Censis, 15.5 % of all housing units in the United States were vacant. A county supervisor wonders her county is different from this. She randomly selects 795 housing units in her county and finds that 150 of the housing units are vacant. What kind of test is this? Proportional t-test One-proportion z-test Difference in proportions test Two-proportion 1-best

Q: What is the sample? O All people O Which food delivery app was used O All US smartphone users O…

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A: In this case, we need to check whether the die is fair or not.

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A: We have to find sample proportion.

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Q: A Pew Internet poll asked 4272 U.S. adults about their use of smart watches and fitness trackers. A…

A: Given that  Total Number of adults about their use of smart watches and fitness trackers n = 4272…

Q: Among 1815 randomly selected high school students surveyed by the Centers for Diseases Control, 300…

A: Given X=300 n=1815

Q: Sample Proportion. Nielsen Media Research determined the precise proportion of all Americans…

A: Definition: Sample proportion : It is the quantity which measures the success of proportion.   Here,…

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Q: A magazine article conducted a survey of 807 people in Phoenix metro area and found that 45% of the…

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Q: Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad…

A: Introduction: Here, it is not mentioned whether the three donuts of each variety are chosen randomly…

Q: Mother smoking Infant colic Yes No Total status Yes 15 167 182 No 111 2477 2588 Total 126 2644 2770

A: The given data is as follows:Mother smoking statusInfant…

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A: The objective of the question is to conduct various statistical tests and intervals based on the…

Q: dy Question: 2. In order to determine the average weight of carry-on luggage by passengers in…

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Q: I am doing a survey and want to know how many siblings each participant has. Participant 3 leaves…

A: Introduction: Consider that there are n participants in the study. Each participant is asked how…

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A: d) Given the librarian, check the books returned by the adults or a child are tracked. She records…

Q: In a test for equality of two proportions, the sample proportions were p1 = 32/60 and p2 = 20/60.…

A: p1 = 32/60 and p2 = 20/60. n1=60 ,n2=60

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 10 p.m Newscast reaches 54% of…

A: Answer: From the given data, Population proportion (P) = 54%                                      =…

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Q: According to an article in Newsweek, the natural ratio of girls to boys is 100:105. In China, the…

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Q: Researchers at a drug company are testing the duration of a new pain reliever. The drug is normally…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: According the April 12, 2017 Pew Research survey, 58% of Americans approve of U.S. missile strikes…

A: (3) Determine whether the normal approximation can be used with the given distribution or not?…

Q: A recent study surveyed 1,351 households asking if the residents rented or owned and if the…

A: The question is about proportion.Given :To find :a ) No. of households reported having 1 or more…

Q: A dietician would like to know if beverage preference is related to gender.  The owner randomly…

A: Solution A researcher wants to test if beverage preference is related to gender.

Q: a. how many degrees of freedome are there in this table? b.how many cells are in this table? c.…

A: a. The degrees of freedom for the given table is, Thus, the degrees of freedom is 1.

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Q: NBA Draft Picks. FromWikipedia’s on-line document “List of First Overall NBA Draft Picks,” we found…

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Q: Ask 20 of your classmates about their favorite viand among the choices; ADOBO, SINIGANG and MENUDO.…

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Q: Medical Marijuana? An international poll of physicians was conducted on the New England Journal of…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: According to an article in Newsweek, the natural ratio of girls to boys is 100:105 . In China, the…

A: Given that, According to an article in Newsweek, the natural ratio of girls to boys is  100:105 . In…