drug is used to help prevent blood clots in certain patients. In clinical trials, among 4856 patients treated with the drug, 187 developed the adverse reaction of nausea. Construct a 99% confidence interval for the proportion of adverse reactions. A) find the best point estimate of the population proportion p ( round to three decimal places) B) identify the value of the margin of error E C) construct the confidence interval.

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A: A variable is a characteristic that can be measured.

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A: Here Given data for time taken by students to run a mile. Sample size n=10

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A: The sample mean is 3.3, sample size is 12, population standard deviation is 0.9 and the population…

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A: claim : μ≤12n = 56x¯ = 11.91σ = 0.18

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A:

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A: Parameter is a value and it derived from the population. Ex : Population mean, Population…

Q: A magazine provided results from a poll of 1500 adults who were asked to identify their favorite…

A: p=0.13, n=1500, ME=±0.05

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A: Independent variable : Company  Dependent variable: Driver Height

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A: A frequency table is given.

Q: Find the P - hat and q - hat for the given data, n = 520 and X = 266 Round to three decimals

A: Answer: From the given data, Sample size (n) = 520 X = 266

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A: Answer: From the given data, mean (μ) = 39 Standard deviation(σ) = 18 X follows normal…

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Q: What is the p value of, in a left tail hypotheses test, Z statistics=-1.85 Round to four decimals

A: Z statistics  =  -1.85 Hypothesis test is left tail test.

Q: University officials hope that changes they have made have improved the retention rate. Last year, a…

A: Hypothesis is an assumption that is being tested.

Q: Write one Quantitative Paragraph five sentences about Statistics!

A: Statistics is nothing but applied mathematics that deals with measurements of various type of data.…

Q: Researchers investigating the speech habits of teenagers measured the number of times that a person…

A: given t-test results were given t=-1.8703, df=97.951, p-value=0.06442, CI=(-15.5317, 0.4599)

Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…

A: Sample size, n=44 Sample mean, x¯=94 Population standard deviation, σ=18 Confidence level=0.99

Q: Jump to level 1 A rods manufacturer makes rods with a length that is supposed to be 17 inches. A…

A: n=24, sample mean X̄=17.09,  standard deviations s=0.25

Q: number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed…

A: Let, x denotes the number of chocolate chips cookies in the bag. Hence, x~N262,117

Q: A random sample of 500 of a certain brand of cola was taken to see whether the mean weight was 16…

A: Answer: From the given data, Sample size (n) = 500 Sample mean x¯ = 15.9988 Standard deviation (s) =…

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A: Answer: From the given data, P(Z>0.68) is,

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A: The values for X and Y are given.

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A: The given data is as follows, 500 92 70 300 90 60 300 80 60 200 80 60 150 78 55 120 75…

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A: λ =3 per monthx = no. of breakdowns per monthP(x≤1) = ?

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A: Population mean μ=38.72, standard deviations σ=3.17

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A: Let us consider two samples that follow the assumption of the normal population.  Here, the…

Q: You may need to use the appropriate appendix table or technology to answer this question Calculate…

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A: In hypothesis testing, we use two different tails. They are one-tailed and two-tailed. There are two…

Q: Find the mean for the given data set, 33,46,79,26,85

A: Answer: From the given data, 33,46,79,26,85 Sample size(n) = 5

Q: n SRS of 100 of a certain popular model car in 2013 found that 20 had a certain minor defect in the…

A: Given Year 2013 2014 Sample size 100 400 Proportion of defectives 0.20 0.125

Q: What does the sign and actual number tell you in a correlation?

A: Correlation coefficient denoted by " r ". Correlation coefficient have value between -1 to 1.

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A: The question to find discrete prob. distribution Given : Total no. of tickets sold = 30 Tickets are…

Q: b. Construct a confidence interval suitable for testing the claim that students taking nonproctored…

A: The given values are: n1=32,x¯1=76.36,s1=10.17 n2=31,x¯2=86.81,s2=19.49

Q: 5. An investor has invested in nine different investments. The dollar returns on the different…

A: The probability of the z value is calculated using the normal distribution. The z score is the…

Q: Discrete or Continuous Random Variables?

A: Random Variable either can be discrete or continuous. Continuous variables are those which have…

Q: Find the margin of error for the given data values of c,s and n C = 0.95, s = 520 and n Round to two…

A: Answer: From the given data, Sample size(n) = 62 Standard deviation(S) = 520 Confidence interval (c)…

Q: need help with writing the probability statement i have tried P(64.7<X<67.3) and it tells me that it…

A: Standardization in Normal distribution If X is a Normal random variable with mean μ and standard…

Q: how do I find the probability that a bottle would be filled less than 495 milliliters?

A: The probability that a bottle would be filled less than 495 milliliters?

Q: 1. Null vs Alternative Hypothesis Definition & connotations How do they differ? How do you state…

A: Null vs Alternative Hypothesis Definition &amp; connotations How do they differ  How do you state…

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A: λ = 10 bad cheques per dayx = no. of bad cheques per dayP(x=X) = e-λ(λ)xx! _____poisson…

Q: The data given to the right includes data from 40 candies, and 9 of them are red. The company that…

A: The question is about confidence interval Given : Total no. of candies ( n ) = 40 No. of candies…

Q: Suppose that 10 observations are drawn from a normal population whose variance is 64. The…

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Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1437…

A: Hypothesis is an assumption that is being tested.

Q: Suppose that X is a normally distributed with a mean 29 and standard deviation is 10 find the given…

A: Answer: From the given data, Mean (μ) = 29 Standard deviation(σ) = 10 X follows normal distribution,

Q: The USGA requires that golf balls have a weight that is less than 1.62 ounces. An engineer for the…

A: Solution-: We have following data: xi 1.614 1.614 1.621 1.621 1.619 1.61 1.612 1.602 1.614 1.61…

Q: Find the critical value(s) and rejection region(s) for the type of z-test with level of significance…

A: The test is a right-tailed. The level of significance (α)=0.005

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 269 treated subjects…

A: Hypothesis is an assumption that is being tested.

Q: Let X and Y be normaly distributed random variables. Which of the following are also normally…

A: Here, given that x and y are normally distributed normal variables. Then , we have to check the…

Q: At a car wash, cars arrive randomly and independently; the probability of an arrival is the same at…

A: Suppose at a car wash, cars arrive randomly and independently. The probability of an arrival is the…

Q: The table below shows the amounts of crude oil (in thousands of barrels per day) produced by a…

A: Oil produced(x) Oil imported(y) 5802 9334 5735 9108 5601 9689 5471 10044 5164 10104 5096…