1. The American Journal of Public Health (July 1995) published a study of the relationship between passive smoking and nasal allergies in Japanese female students. The study revealed that 80% of students from heavy-smoking families showed sign of nasal allergies on physical examinations. Consider a sample of 25 Japanese female students exposed daily to heavy smoking. d. What is the probability that more than 15 of the students will NOT have nasal allergies? e. What is the probability that more than 15 but fewer than 20 will have nasal allergies?

Q: An employee claims that 20% of the email she receives is personal, 60% is work related, and 20% is…

A: Given data An employee claims that 20% of the email she receives is personal 60% is work related and…

Q: A 2016 Pew Research poll found that 18% of cell phone owners use their phone for conducting…

A: It is given that the total number of cell phone uses are 18%, thus the population proportion is…

Q: A brand manager for a soft drink firm is doing competitive analysis on marketing communications…

A: Let A1, A2, A3, A4 be the events representing Television, Radio, Magazines ,Newspapers respectively,…

Q: a. What is the expected number of children that should report cognitive impairment related symptoms…

A: 4. A research program is concerned about the potential exposure to hazardous lead levels at a…

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A: Given that the chance of marriage for a never-previously-wed, 40-year-old university-educated…

Q: Annie is concerned over a report that "a woman over age 40 has a better chance of being killed by a…

A:

Q: 5. Is lack of sleep causing traffic fatalities? A study conducted under the auspices of the National…

A: From the provided information, Mean (µ) = 1550 Standard deviation (σ) = 300 X~N (1550, 300)

Q: In a medical study, adult patients were randomly chosen and classified by obesity and hypertension.…

A: We have given the following contingency table Hypertension by Obesity Level Hypertension \obesity…

Q: sults are summarized in the contingency table below. Hypertension by Obesity Level   Obesity…

A: Given that   Low Average  High Yes 34 30 51 No 119 99 82 We have to find c...What is the…

Q: A simple random sample of size n 200 drivers with a valid driver's license is asked if they drive an…

A: Solution: Given information:  n= 200 Sample size of drivers  x = 122 drivers drive an American made…

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A: 2700 women were diagnosed with hypertension 1200 didn't have a history of OC Have history of OC =…

Q: 6.4; Based on a smartphone​ survey, assume that 60​% of adults with smartphones use them in…

A: Here the sample size is large  Based on a smartphone​ survey, assume that 60​% of adults with…

Q: A study conducted by the Institute of Education Sciences from 1992 to 2003 found that about 22%  of…

A: Given: Population proportion, p=0.22 Sample size, n=50

Q: e reject the null hypothesis and conclude that there is sufficient evidence at a 0.10 level of…

A: Given data number of success , x= 20.0 sample size, n = 540 population…

Q: 3. A construction crew is building a new bridge. A structural component has a 15% chance of failing…

A:

Q: n studying the occurrence of genetic characteristics, the following sample data were obtained. You…

A:

Q: Annie is concerned over a report that "a woman over age 40 has a better chance of being killed by a…

A: According to the given information in this question We need to find the conclusion of the test

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A: Given Information: Moderate stress Relatively Stress free 18 20 25 23 17 26 20 30 23 28…

Q: 3. A grocery store purchases melons from two distributors, J and K. Distributor J provides melons…

A: a) Distributor J : Mean , μ = 133 Standard deviation , σ = 5 We have to calculate :  P⁡(X>137)…

Q: Ho :p = 0.026 H. P 0.026

A: Given : Let p be the proportion of American women

Q: Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.

A: Given data number of success , x= 20.0 sample size, n = 540 population…

Q: . What is the probability that 187 or more of the sample will approve of President Biden’s andling…

A:

Q: Lactose intolerance affects about 20% of non-Hispanic white Americans. If a person is selected from…

A: Solution: 2. From the given information, Lactose intolerance effects about 20% of non-Hispanic white…

Q: Compute the value of the test statistic. Round your answer to two decimal places

A: Sample size n = 457X = 24 = no of women reported now being marriedSample proportion…

Q: There is a 30% chance Ju Ren wears a purple shirt on any given day, and a 60% chance that she wear…

A: P(Purple shirt)=P(A)=30%=0.30P(wearing jeans)=P(B)=60%=0.60.

Q: Compute the value of the test statistic. Round your answer to two decimal places.

A: Sample size n = 414 X = 16 = no of women reported now being married Sample proportion = X/n = 16/414…

Q: 3. A recent article in the Journal of Urban Chicken Farmers reported the fraction of chickens that…

A: The distribution:Denote X1, X­2 and X3 as the numbers of chickens out of the n = 18 tested chickens,…

Q: 1) Using the above data table, find and report the following probabilities: The probability that one…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

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.