When a population (Y) has a Normal probability distribution, the sampling distribution of Y  is a Normal probability distribution for Any sample size Only large sample sizes Only samples of size 30 or greater Only small sample sizes   The body temperatures of adults are normally distributed with a mean of 98.6 ° F and a standard deviation of 0.60° F. Please, Find the 70th percentile of the body temperature. 98.6 98.9 99.2 0.5244

Q: Q1) d- for the following equation, the value :of n is (n + 1) P3 = nP4 5 O 4 2.5 O 1 O none of all…

A: Given,P3n+1=P4nand we know that Prn=n!n-r!

Q: At a= 0.05, is there a significant difference on your sample average price if the market average…

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Q: For a standard normal distribution, find: P(-2.76 <z<2.32)

A: The z values are -2.76 and 2.32.

Q: a. "Blood types": Variable? or Data? b. "Blood types": Numerical? or Categorical? c. "Blood types":…

A: a. blood types-variable b. blood types-Categorical  c. blood types-nominal d. blood…

Q: a) z> 1.5 b) z <1.5 c) - 1.4<<<0.95

A: Here AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPART PLZ REPOST FOR REMAINING PARTS WITH NOTE I NEED…

Q: You and your spouse are in good health and have reasonably secure jobs. Each of you makes about…

A: Using DINK method   One half of the mortgage is $125000/2= $62500  One half of car loan $16100/2=…

Q: Let F be the co

A: Here,for G∈F and △∈D={cG1-G2:CER,Gj∈F, j=1,2}. Then, TG+t△-TG=∫G+t△z-ydG+t△ y-∫Gx-ydGy…

Q: The crWhat is the criti€cal value, zc , used for constructing a 96% confidence interval for a…

A: The confidence level is 96%. The level of significance is 0.04. The critical value is  Zc=2.054…

Q: a. The ___________ of an interval estimate of a parameter is the probability that interval estimate…

A: Population is the subjects that involves all the people involve in the study. Subset of population…

Q: Jesse was ranked 36th in his graduating class of 180 students. At what percentile is Jesse's…

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Q: An epidemiologist studies cardiovascular disease among 25,502 male middle-aged alumni of an Ivy…

A: Given that An epidemiologist studies cardiovascular disease among 25,502 male middle-aged alumni of…

Q: A particular fruit's weights are normally distributed, with a mean of 422 grams and a standard…

A: The following information has been given: The population mean is μ=422. The population standard…

Q: What is the probably of observing a difference in sample means less than 0.5?

A: here given , Assume the same population of nurses from CR hospital with the same mean and standard…

Q: 3) Consider a simple linear regression model Y = Bo + B₁1x + e, where Y is the response variable, x…

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Q: As part of a study designed to compare hybrid and similarly equipped conventional vehicles, Consumer…

A: From the given information, Hybrid test file contains the variables: Class, type, MPG and model.…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(z…

A: GivenMean(μ)=0standard deviation(σ)=1

Q: CMNO4 1.00 ppm 2.50 ppm 5.00 ppm 7.50 ppm 10.00 ppm 15.00 ppm 20.00 ppm 25.00 ppm unknown Absorbance…

A: Solution: Let X be the CMnO4- and Y be the absorbance at 580 nm. From the given information,

Q: xt=0xt-1 + Et +0€t-1 assuming that ø| < 1, and E(?) = 0², E(et, &s) = 0 ts.

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Q: In an upstate county in New York state, county administration did a statical study on household…

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

Q: A normal distribution has a Mean of 25 and a S.D. of 10. Find the probability that the deviation…

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

A: From the provided information, Population standard deviation (σ) = 0.71

Q: (d) Compute the marginal pmf of X. X 0 1 Px(x) Compute the marginal pmf of Y. y Py(Y) Using Px(x),…

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Q: se were randomly selected t

A: Sample Mean 1 (X1​)(\bar X_1) = 6.96.9 Population Standard Deviation 1(\sigma_1)(σ1​) =…

Q: Harry’s commuting times to work have a normal distribution with a mean of 45 minutes and standard…

A: Given: μ = 45 minutes σ = 10 minutes   Formula Used: Z-score = X-μσ

Q: Q5) A college class contains boys and girls students together. The number of boys in the class is…

A: Given: The choosing ways ratio of boys to girls =514. To find: To find the number of ways if half of…

Q: if the probability of a machine producing a defective part is 0.05, what is the probability of…

A: Given Sample size=100 Exactly five defective X=5 P=0.05

Q: x f(x, y) 4 0.10 0.15 Y 3 0.20 0.30 5 0.10 0.15 a. Determine the cumulative distribution function…

A: Given f(x,y) x 2 4 Total y 1 0.10 0.15 0.25 3 0.20 0.30 0.50 5 0.10 0.15 0.25 Total…

Q: a. Using a 98% confidence interval, what is the true population proportion p of individuals who…

A: The provided information is  x=118n=200α=0.02The critical value is zc=±2.33 (from statistical…

Q: The average public high school has 468 students with a standard deviation of 87. Answer the…

A: As per our guidelines we are suppose to answer only one question. Let us assume sample…

Q: Company XYZ know that replacement times for the quartz time pieces it produces are normally…

A: Given mean of 10.6 years Standard deviation of 1 years. If the company wants to provide a warranty…

Q: A study has been conducted to verify the mean of birth weight at Apple County. From the simple…

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Q: * :The correct arithmetic mean is (1

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Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 11.9…

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Q: From experience, an airline knows that only 73% of the passengers booked on a flight from New York…

A: Given,n=7p=0.73q=1-0.73=0.27A random variable X~Binomial(n=7 , p=0.73)P(X=x)=Cx7 0.73x0.277-x  ;…

Q: Choose the correct answer 1- Example for Positive correlation is A) Income and expenditure B) Price…

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

Q: A sales manager for a large department store believes that customer spending per visit with a sale…

A: Given, A sales manager for a large department store believes that customer spending per visit with a…

Q: For the given data set 3  4  6  7  4  3  8  11  20  23 25  1  2  4  11  22  19  17  15  10 14  12…

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Q: µ = 3, o² = 9, P(-6 < X < 12) a. Determine P(µ − ko < X < µ+ ko) ≥ 1 − 1/k²

A: Chebyshev's inequality is used to obtain the probability values. It is calculated by the combined…

Q: A large bag of M&M's is used to determine the probability that a randomly selected candy will have a…

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Q: A scatter plot would be useful for:     Showing the relationship between the sales of blank CDs and…

A: The objective is to find the correct option for the scatterplot.

Q: The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of…

A: Ans#  Given the amounts of nicotine in a certain brand of cigarette are normally distributed with…

Q: Calculate the mea Ag 5 6

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Q: Consider the following ANOVA table from a completely randomized design with 5 treatment levels and…

A: Solution-: Given: Number of treatment =t=5, Total observation =N=30 We want to find the mean square…

Q: What criterion must a portfolio meet in order to be in the minimum variance set? Contrast the…

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Q: normal distribution has a mean of 17 and a standard deviation of 5. Use the 68-95-99.7 rule to find…

A: mean = 17 and  standard deviation = 5 Normal distribution Use empirical rule P(17&lt;x&lt;27) =?

Q: Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E.…

A: Given data n=293 x=47.1% confidence level is 99.5%

Q: TI-83/84 PLUS Winning team data were collected for teams in different sports, with the results given…

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Q: D/ The water content measurements from a borrow pit are normally distributed. The mean of…

A: Given data: Mean = 13.7 Standard deviation = 1.9

Q: The table below gives the amount of time students in a class studied for a test and their test…

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Q: The average age of dogs owned by residents in a small retirement community is 7.5 years with a…

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