Find 64th percentile, P64, from the following data 130 160 170 180 190 220 250 1280 330 380 400 410 420 440 450 590 490 500 560 620 640 680 720 740 750 760 780 820 830 840 850 860 870 880 890 910 920 950 1990 P64

Q: A supermarket owners believes that the mean income of its customers is 50,000 per month. One-…

A: For the given data Perform z test for one sample

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A: Given N=10 Significance level=0.01

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A: GivenMean(x)=57sample size(n)=62standard deviation(σ)=14α=0.10

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Q: According to the Central Limit Theorem, the distribution of sample means will be approximately…

A: Solution-: According to the CLT, the distribution of sample means will be approximately normal when…

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Q: In the study, a random sample of 4675 US adults were asked whether they agree or disagree that there…

A: Solution-: Given: n=4675,x=565,Z*=Ztab=1.96,SE=0.007 Our aim to find, (a) The sample statistic=? (b)…

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A: Solution: From the given it can be observed that

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A: Given information: Solution Days 1 2 3 4 1 13 22 18 39 2 16 24 17 44 3 5 4 1 22

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Q: Continuous random variables 5. A charity group raises funds by collecting waste paper. A skip-full…

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Q: 7. A charity group raises funds by collecting waste paper. A skip-full will contain an amount, X of…

A: Given,f(x)=c(x-1)4-xfor 1<X<40otherwise

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A: It is given that Sample size n = 1014 Number of successes, X = 534 The critical value of Z at 99%…

Q: You estimated the following regression. What value would you predict for Y, if X = 56? (Round your…

A: From the given information, the intercept value is 81.67896.

Q: 8. A factory is supplied with grain at the beginning of each week. The weekly demand X, thousanfd…

A: A continuous function f(x) is said to be the probability density function of the continuous random…

Q: Given P(A and B) = 0.07, P(A) = 0.75, and P(B) = 0.63 are events A and B independent or dependent?…

A:

Q: 3. Quartiles are the values that divide the data in three equal parts. 4. Deciles are the values…

A: There is usually a tendency of the variate values to cluster around a central value; in other words,…

Q: Historically, the mean systolic blood pressure (SBP) has been a rather high 139 units for adults in…

A: here, we are interested to less than mean rather than 139. Whether a recent health campaign on diet…

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A: The random variable X follows normal distribution. We have to find the sample size with confidence…

Q: Population Parameters and Sample Statistics: Determine whether the value being discussed is a…

A: Population Parameters and Sample Statistics:

Q: Which of the following is the estimated regression line?

A: From the given output, Y-intercept a = 104.8311 And slope b = 35.48969

Q: If a certain machine manufactures electrical resistors that have a mean resistance of 201.35 ohms…

A: Let X be the random variable from normal distribution with mean (μ) = 201.35, standard deviation (σ)…

Q: This refers to the mean of the sample means according to Central Limit Theorem? (A) Sample mean (B)…

A: Central limit theorem CLT States that the sampling distribution of sample mean is Approximately…

Q: Let Z be a random variable with the standard normal distribution. Find P(-1.35 ≤ Z≤ 2.15) P(0.55 ≤Z≤…

A: We have to find value of standard normal table

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A: In the given scenario, the number of used cars sold is predicted based on the different values for…

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A: Given data,Mean μ=23sd    σ=3How much do the top 6% of customers spend?

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A: The number of females said yes (xf) is 726 and the total number of females (nf) is 1423.

Q: A popular soft drink is sold in 1-liter (1,000-milliliter) bottles. Because of variation in the…

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Q: Please use the accompanying Excel data set or accompanying Text file data set when completing the…

A: Given data…

Q: Solve the following problems. Show all pertinent solutions. 1. The ages of 211 qualified voters in a…

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Q: According to the Federal Trade Commission report on consumer fraud and identity theft, 23% of all…

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A: From the provided information, Sample size (n) = 900 From which 504 responded that they approved of…

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Q: The tourist bureau of the Caribbean Islands surveyed a sample of 5 United States tourists as they…

A: Let X denote the number of days spent on visit.  Given that n = 5

Q: Determine the upper-tail critical value ta/2 in each of the following circumstances. a. 1-a=0.95,…

A: As per our guidelines we are suppose to answer only one question 1)a)Given1-α=0.95n=13

Q: (d) Manufacturer A's television picture tubes have a mean lifespan of 7.18 years and a standard…

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Q: Listed below are the lead concentrations (in µg/g) measured in different Ayurveda medicines.…

A: Given data is2.97,6.52,5.97,5.54,20.50,7.48,12.01,20.49,11.53,17.52sample size(n)=10

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A: There are two independent samples which are elementary and high school. We have to construct 95%…

Q: The average baggage-related revenue per passenger is: $  (please round to the nearest cent) b) The…

A: An airline charges the following baggage fees: $20 for the first bag and $35 for the second. Suppose…

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Q: the 95% confidence interval for the population mean along with a 0.05 hypothesis test using the…

A: From the given data, the sample mean is, x¯=47.222075. The sample size is, n=40 The sample standard…

Q: The scores of the students who took an exam in Statistics is normally distributed with a mean of 80…

A: Given that  mean = 80 , s.d = 4

Q: (a) Find the t-value such that the area in the right tail is 0.20 with 14 degrees of freedom. (Round…

A: We shall use t distribution table to solve this question.

Q: In a random sample of 100 audited estate tax returns, it was determined that the mean amount of…

A: From the provided information, Sample size (n) = 100 Sample mean (x̄) = $3464 Standard deviation (s)…

Q: A survey was conducted that asked 1015 people how many books they had read in the past year. Results…

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Q: You estimated the following regression. What value would you predict for Y, if X = 50? (Round your…

A: From the given information, the intercept value (b0) is 51.29222.

Q: The established mean for the number of copies a customer makes per visit at a copy store is 38.   A…

A: Given : sample size, n =57 sample mean, x̄ =32 population standard deviation,σ=20…

Q: A researcher wishes to estimate the average blood alcohol concentration (BAC) for drivers involved…

A: Given Mean=0.17 Standard deviations=0.060 n=51