A study shows that 15% of adult males don’t wash their hands in a public restroom. We take a random sample of 523 men in a public bathroom. What’s the probability that exactly 80 of the men don’t wash their hands?

Q: Which of the following defines the area encompassed by the values not included in the non-rejection…

A: Here's, given the area of rejection or non rejection and tail of the distribution.

Q: The measures of center: and Measures of spread: and

A: The measures of centers are mean, median and mode

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A: If the population standard deviation sigma  is known then z statistic is used.

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Q: What is the range used to estimate the population parameter with an attached confidence coefficient?…

A: We have given that,  What is the range used to estimate the population parameter with an attached…

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A:

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A:

Q: A random sample of 500 males included 215 that approved of the performance of a President.  A random…

A: Solution-: Given:  n1=500,n2=500,x1=215,x2=185,α=0.05 We want to calculate  (a) p1^, and q1^, p2^,…

Q: Kyle has a collection of more than 300 songs in his phone that have a mean duration of 2.75 minutes…

A: The mean and standard deviation are 2.75 and 0.6.

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A:

Q: b. In the year 2000, a survey of 977 U.S. adults were asked who they felt was the greatest…

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Q: A bottling company uses a filling machine to fill plastic bottles with a popular cola. The bottles…

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A: According to our policy we can answer only first three part for remaining please repost the…

Q: Nutritionists measured the sugar content (in grams) for 32 drinks at Jake’s Java coffee shop. The…

A: Given, Sample size, n = 32 Mean, μ = 18 Standard deviation, σ = 5 Observed value, X = 14

Q: A mail-order company has a 9% success rate. If it mails advertisements to 500 people, find the…

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Q: sample of 50 laptops, the sample mean is 122 minutes. Test this hypothesis with the alternative…

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Q: EXCERSISE The Pareto distribution has been used in economics as a model for a density function with…

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Q: For a normal distribution with a mean of µ = 500 and a standard deviation of σ = 50, what is…

A:

Q: Number of pets owned Frequency Relative Frequency Cumulative Relative Frequency 0 22 0.3607…

A: Outlier: An outlier is a set of data that varies substantially from other observational data in…

Q: KCERSISESuppose that X1,,X, form a random sample n the interval (0,0 +1), where the value of the…

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Q: A teacher has two large containers filled with blue, red, and green beads, and claims the proportion…

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Q: Males and females were asked if they preferred Product A or B. The males in the sample included 40…

A: Given data males and females were asked if they preferred product A or B The males in the sample…

Q: A biased coin has probability p to land heads and q = 1- p to land tails. (a) The coin is flipped…

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Q: An insurance company offers four different deductible levels-none, low, medium, and high-for its…

A: Given Information: Auto/Homeowner N L M H L 0.04 0.08 0.05 0.02 M 0.07 0.11 0.20 0.08 H…

Q: Hospital visits: According to a health agency, there were 409,714 hosital visits for asthma-related…

A: Solution:- Given data  Age range  Number  less than 1 year 7865 1-17 103050 18-44 79650…

Q: The average amount of Vitamin C in a capsule of a multivitamin is 500 mg and the standard deviation…

A:

Q: 3. A hockey tournament consists of 16 teams. In the first round, every team is randomly assigned to…

A: L

Q: number of 250 COVID patients and a standard deviation of 20.      What is the 95 % confidence…

A: We have given that,  Sample mean or average (x̄) = 250, sample size (n) = 41, and standard deviation…

Q: (1) The mean square value of X(t) is E[X?(t)] = Rxx (0) It is equal to the power of the process…

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Q: Show that two random variables X, and X, with joint pdf, 1 |x, < 4, 2<x, <4 fx,„x, (x,x2) ={ 16…

A:

Q: weights of packages shipped by a company are normally distributed with a mean of 32.8lbs and a…

A: Given,mean(μ)=32.8standard deviation(σ)=5.4

Q: What is the formula for finding the z-score? The z-score of the mean is always z =

A:

Q: e data set 374 14 3 8 4 17 3 8 4 24 395 27 4 9 5 6 4 10 Send data to Excel Part: 0 / 4 Part 1 of 4…

A: Solution

Q: Lifetimes of cell phones have a mean of 24.3 months and a standard deviation of 2.6 months.  Find…

A: From the provided information, Mean (µ) = 24.3 Standard deviation (σ) = 2.6

Q: Question 8   .If the total sum of squares is 6058, the residual sum of squares is 163. What is the…

A: Formulae:                  1) intercept parameter= ∑Y-b∑Xn                  2)slope parameter=…

Q: What was the median commute time?

A: Here we want to know What was the median commute time.

Q: P(0)= 0.2, P(2)= 0.3, P(4)=0.3, P(6)=0.2 10. What is the variance of the probability distribution?*…

A: The given probability distribution table is,

Q: *Questien Comptetion Stanu LSL USL Within 0.854 Overall Within 8 Cp CPL 0.856 CPU 0.852 0.852…

A: Here's, we know when we have Cp &lt; 1 then process is not in control.

Q: A traffic officer is compiling information about the relationship between the hour of the day and…

A: correlation coefficient of -0.25.

Q: Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is…

A: Solution-; Given:  σ=0.75, x¯=4.85, n=33, α=0.05 We want to find, (a) Check the conditions to…

Q: A stock has an expected return of 8% and a volatity of 9%. The stock is currently traded at price is…

A:

Q: Consider again the (x,y) values.  x 0 2 2 4 5 y -1 0 4 6 7 Determine each of the following:  a)…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted…

Q: Question 4   Compute the z score for a score of 90 on a test that has a mean of 92 and a standard…

A: We have given that,  Let X be the random variable from normal distribution with mean (μ) = 92,…

Q: An apple juice producer buys all his apples from a conglomerate of apple growers in one northwest…

A:

Q: If a random process X(1) has a non-zero mean value, E[X(t)]#0 and ergodic with no periodic…

A:

Q: A local school board believes there is a difference in the proportion of households with school-aged…

A: Solution-: Let ps- the true proportion of households with school-aged children that would support…

Q: Since the discovery of the tiger gar population in Lake Richmond, the population of bluegill fish…

A: Since the discovery of the tiger gar population in Lake Richmond, the population of bluegill fish…

Q: The Normal model N(65, 5^2) describes the distribution of heights of college women (inches). (a)…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…