In clinical trials of 3066 patients taking treatment​ A, 790 reported nausea as a side effect. In clinical trials of 1013 patients taking treatment​ B, 216 reported nausea as a side effect. Researchers want to know whether the difference in sample proportions is statistically significant. Use the​ "Randomization test for two​ proportions" applet in StatCrunch with a seed of   10207.   Obtain exactly 3000 runs of the applet. What is the​ P-value based this​ randomization

Q: Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using…

A: Given that, The sample proportion of subjects who respond in favor is, Null and alternative…

Q: How do you calculate the sample variance for proportions when the sample is drawn from a dichotomous…

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Q: A report statesb that 45% of home owners had a vegetable garden, how large a sample is needed to…

A: Answer: From the given data, population proportion (P) =45% = 0.45 Margin of error (ME) = 6% = 0.06…

Q: Find the Zc value for a 92% confident interval when the sample sizes 27

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Q: A college placement office sent a questionnaire to a sample of business school graduates requesting…

A: We know that variance is a measure of how distorted a data set is. It is calculated by the average…

Q: When the sample size is 15 and you are doing a t test, the number of degrees of freedom is 15. True…

A: Given that  Sample size n =15 Degree of freedom =df =n-1

Q: Candidate T wants to determine if there is a difference in his popularity between men and women.  To…

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Q: Most adults would erase all of their personal information online if they could. A software firm…

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Q: How do the Boundaries for the observed sample, Common and Rare Outcomes?

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Q: What is the difference between a simple random sample and systemic sample?

A: In a systematic sample, the only samples possible are those including every kth item from the random…

Q: Twelve percent of U.S. employees who are late for work blame oversleeping. You randomly select four…

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Q: 79% of the US adults think that political correctness is a problem in America today. You randomly…

A: As per Bartleby policy, I will solve the first three sub-parts The mean of the binomial…

Q: What is the formula to be used to determine the total possible random samples?

A: Let the population size be N Sample size be n

Q: When we are comparing two sample means that are not the same group of individuals, what kind of test…

A: Given that  When we are comparing two sample means that are not the same group of individuals

Q: A survey of eating habits showed that approximately 5​% of people in a certain city are vegans.…

A: Given information- We have given that 5% of people in a certain city are vegans. A restaurant in the…

Q: There are 145 people who participate in a training about compassion, and their compassion scores are…

A: In paired t test, it is needed to check the significant difference between two variables of same…

Q: What do you mean by Random Sample?

A:

Q: Here are 6 celebrities with some of the highest net worths​ (in millions of​ dollars) in a recent​…

A: The data set are :- X :- 5500,3700,3200,1700,1200,950 Then,  We will find the Range, variance and…

Q: The sample size is 40, why not use the " one mean z-test?

A: Sample size n=40 Sum of observations ∑x=1200 The sum of the square of observations ∑x2 85000…

Q: Online gamers are divided into different age groups. A random sample from each group is selected and…

A: From the given information we want to know method of sampling.

Q: A software company is interested in improving customer satisfaction rate from the 61% currently…

A: It is given that x=176, n=267 and P=0.61.

Q: The Bata Shoe Museum states that 4343% of women wear shoes that are too small for their feet. A…

A: Given,sample proportion(p^)=0.43margin of error(E)=0.015α=1-0.98=0.02α2=0.01Z0.01=2.3263       (from…

Q: Explain one possible advantage of using a paired sample instead of independent samples.

A: Paired samples, are also known as dependent samples, can be defined as the samples in which natural…

Q: Although Nielsen Media research determined the precise proportion of all Americans watching the…

A: Given : Nielsen Media research determined the precise proportion of all Americans watching the super…

Q: A software company is interested in improving customer satisfaction rate from the 66% currently…

A: From the provided information, A software company is interested in improving customer satisfaction…

Q: The manufacturer of a new racecar engine claims that the proportion of engine failures due to…

A: Given: Significance level = 0.05

Q: Write a short note on the importance of random sample.

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Q: A gigantic warehouse stores approximately 70 million empty aluminum beer and soda cans. Recently, a…

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Q: A report statesb that 49% of home owners had a vegetable garden, how large a sample is needed to…

A: Answer: From the given data, Population proportion (p) = 49% = 0.49 Margin of error (ME) = 8% = 0.08…

Q: Most adults would erase all of their personal information online if they could. A software firm…

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Q: Why is it necessary for a sample to be obtained randomly rather than conveniently?

A: Since we know that Random sampling makes.  sure that the findings you get from your sample should be…

Q: Describe the large sample test procedure to test the equality of two proportions.

A: FOR LARGE SAMPLE SIZE WE SHOULD USE Z TEST AND DETAILED PROCEDURE IS GIVEN IN THE SECOND STEP.

Q: marketer belive that 92% of adult in germany own a cell phone . a cell phone manufacture believes…

A: Given: p0=0.92x=174n=200p⏜=174200p⏜=0.87α=0.05

Q: A popular charity used 36% of its donations on expenses. An organizer for a rival charity wanted to…

A: Given data : 19 25 31 20 41 32 26 21 9 24

Q: Describe about the All Possible Random Samples.

A: The random samples can be selected in the following methods: Simple random sampling: If a sample of…

Q: Explain the EFFECT OF SAMPLE SIZE.

A: The size of our sample defines how much information we have and thus, in part, decides our precision…

Q: how do you find the simple random sample of 15 restaurants?

A: In simple random sampling each member of the population has an equal chance of being included in the…

Q: For a sample of n=16 scores, how many scores are used to calculate the sample variance?

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Q: If the sample size is increased, the margin of error will decrease.   True or False

A: Given statement : " If the sample size is increased, the margin of error will decrease "

Q: A university has 30,000 undergraduate and 10,000 graduate students. A survey of student opinion…

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Q: In order to estimate the length of wolves in a forest, 12 wolves are selected to be studied by some…

A: Given: Number of wolves (n) = 12 The length of wolves are 6.1, 4.94, 5.89, 5.3, 4.81, 5.73, 5.35,…

Q: gigantic warehouse stores approximately 80 million empty aluminum beer and soda cans.​ Recently, a…

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