The heights of 18-year-old men are normally distributed with a mean of 67 inches and a standard deviation of 3 inches (from Statistical Abstract of the United States, 112th edition) What range of heights represent approximately 68% of 18-year-old men? 64 in to 70 in 63.28 in to 64.72 in 58 to 76 in 61 in to 73 in

Q: The grade point average of students at a university is normally distributed, with a mean of 2.6 and…

A:

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.11 and a…

A: Consider,X be a random variable that represents the shoe size of American women that has a…

Q: Suppose that shoe sizes of American women have a bell shaped distribution with a mean of 8.04 and a…

A: Given that  Mean = 8.04 , Standard deviation = 1.53

Q: Hospital waiting room times are normally distributed with a mean of 38.12 minutes and a standard…

A: From the provided information, Mean (µ) = 38.12 minutes Standard deviation (σ) = 8.63 minutes X~N…

Q: The length of an episode of the hit TV show, Normaler Things, is normally distributed with a mean of…

A: Given that  X~Normal(μ=54 , ?=3.5) Mean=μ=54 , Standard deviation=?=3.5

Q: Heights of men in America are usually a mean of 69.1 inches, with an SD of 2.67 inches. Women are…

A: Z score is given by,

Q: find an 80th percentile of the distribution of the average of 49 flyballs

A: Let M denote the average distance of fly balls for the sample of size n = 49.

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.478.47…

A: The random variable shoe size follows normal distribution. The population mean is 8.47. The…

Q: In a certain country, the heights of adult men are normally distributed with a mean of 68.4 inches…

A: Solution:- from given information mean μ=68.4standard deviation σ=2.8

Q: 15) The heights of basketball players at a certain high school are normally distributed with a mean…

A: given data  normal distribution μ=193.25σ=6.52P(X<210)=?

Q: The incubation time for Rhode Island Red chicks has a Normal distribution with a mean of 21 days and…

A: The incubation time is normally distributed with mean 21 days and standard deviation of 1 day.

Q: The patient recovery time from a particular surgical procedure is normally distributed with a mean…

A: We have given that.    X~N( μ , ?^2 )    μ = 5.1      , ? = 1.8   Z-score =( x - μ )/?

Q: Most medical schools of require applicants for admission to take the Medical College Admissions Test…

A: Let us consider, MCAT be denoted by X. Then, X~N(500,10.62) We have to find P(495<X<520)

Q: The Standards-Based Assessment Exam (SBAE) is an examination given to randomly selected students…

A:

Q: A company has a policy of retiring company cars; this policy looks at number of miles driven,…

A:

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.11 and a…

A: It is given that the mean is 8.11 and the standard deviation is 1.46.

Q: The number of hours that full-time employees work per week at a large corporation has a mean of…

A: a) Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: A common design requirement is that an environment must fit the range of people who fall between the…

A: Obtain the minimum table clearance required to satisfy the requirement of fitting 95% of men.…

Q: A company has a policy of retiring company cars; this policy looks at number of miles driven,…

A: According to empirical rule, also known as 68-95-99.7 rule.

Q: A baseball fan wanted to know if there is a difference between the number of games played in a World…

A: From the given information σ1=1.14σ2=1.11n1=19x¯1=5.62n2=17x¯2=5.34 E(x¯1-x¯2)=μ1-μ2=0…

Q: The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a…

A: The mean of the data is 37. The standard deviation of the data is 10.

Q: The heights of 18-year-old men are normally distributed with a mean of 67 inches and a standard…

A: GivenMean(μ)=67standard deviation(σ)=3

Q: Assuming that the heights of college women are normally distributed with mean 65 inches and standard…

A: Solution: Let X be the heights of college women are normally distributed with mean μ= 65 inches and…

Q: study indicates that​ 18- to​ 24- year olds spend a mean of 115 minutes watching video on their…

A:

Q: A U.S. dime weighs 2.270 grams when minted. A random sample of 25 circulated dimes showed a mean…

A:

Q: In University of Pangasina, GPA's are normally distributed with a mean of 2.9 and standard deviation…

A: Given,mean(μ)=2.9Standard deviation(σ)=0.6

Q: What percentage of computer programmer major received a starting offer between $32000 and $38000?…

A: The following information has been provided: \mu = 39269, \text{ } \sigma = 2550Mean : μ=39269,…

Q: The army reports that the distribution of head circumference among soldiers is approximately normal…

A: X follows a Normal distribution with mean = 22.8 and S.D = 1.1 Then z=(x-mean)/SD = (x-22.8)/1.1…

Q: Tommy Wait, a minor league baseball pitcher, is notorious for taking an excessive amount of time…

A: The mean and standard deviation are 190 and 2.3, respectively.

Q: The incubation time for Rhode Island Red chicks has a Normal distribution with a mean of 21 days and…

A: Here, mean is 21 and standard deviation is 1

Q: The heights of English men are normally distributed with a mean of 69.2 inches and a standard…

A: given mean  (μ= 69.2 )   standard deviation(σ)  = 4      z= (x-μ)/σ p(x<57.2) =P((x-μ)/σ  <…

Q: A group conducted a survey of 13,000 brides and grooms married in the United States and found that…

A: The minimum cost (in dollars) for a wedding to be included among the most expensive 5% of weddings…

Q: The mean height of an average United States female is 65 inches with a standard deviation of 3.5…

A: The probability that a American women is more than 5 feet 9 inches is obtained below:Let X follows a…

Q: ationwide test taken by high school sophomores and juniors has 3 sections, each scored on a scale of…

A: The Chebyshev's theorem states that 1. At least 75% of all the data values should fall within 2…

Q: The systolic blood pressures of women aged 18 to 24 are normally distributed with a mean of 120.3…

A:

Q: During the 2009-2010 basketball season, the number of points scored in each game by the Boston…

A: Given information- The number of points scored in each game by the 'Boston Celtics was approximately…

Q: Heights of 18-year-old males have a bell-shaped distribution with mean 69.6 inches and standard…

A:

Q: The lengths of a particular animal's pregnancies are approximately normally distributed, with mean =…

A:

Q: Cholesterol levels for women aged 20 to 34 follow an approximately normal distribution with mean 185…

A: Given , Let , random variable X be the Cholesterol levels for women aged 20 to 34  The random…

Q: The retirement age of National Football League (NFL) players is Normally distributed with a mean of…

A: The provided information is µ=33 σ=2 P(X<32)=P(X-µσ<32-332)=P(z<-0.5)=0.3085The percentage…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 96 and a standard deviation of…

A: 17. Empirical rule (68 – 95 – 99.7 rule): For a bell shaped distribution (normal) the empirical rule…

Q: Using the empirical rule, what percentage of accused scores are between 70 and 138?

A: Let X denote the IQ scores. Given that X follows N(mean = 104, SD = 17).

Q: The heights of 10 year old American children are normally distributed with a mean height of 4 feet…

A: From the provided information, Mean (µ) = 53 inches Standard deviation (σ) = 4.5 inches Let X be a…

Q: Suppose the heights of men are normally distributed with mean, μ = 69 inches, and standard deviation…

A: From the provided information, Mean (µ) = 69 inches Standard deviation (σ) = 3 inches Let X be a…

Q: A person must score in the upper 2% of the population on an IQ test to qualify for membership in…

A: Solution: It is given here that a person must score in the upper 2% of the population on an IQ test…

Q: Parisukat Light Manufacturing Company provided estimates of the light expectancy of their newly…

A:

Q: Past year's graduates from an engineering college, who entered jobs as engineers, had a mean…

A:

Q: A company has a policy of retiring company cars; this policy looks at number of miles driven,…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: nformation from the Department of Motor Vehicles indicates that the average age of licensed drivers…

A: From the provided information, Mean (µ) = 45.7 Standard deviation (σ) = 12.5 X~N (45.7, 12.5) Here X…