Solve step by step in digital format Suppose that the average income of the engineers hired at REDUNO presents an approximately normal behavior with a mean of $17,000 pesos and a standard deviation of $3,000 pesos. a) What percentage of the employees will have incomes greater than $20,000 pesos? b) In a random sample of 50 employees, about how many people can be expected to have incomes of less than $15,000 pesos?

Q: 3. In Ethiopia, a random sample of eighty people working in the Health and Medical field were…

A: l

Q: Contrary to popular opinion, a psychologist claims that the mean IQ score of math instructors ... is…

A:

Q: A) A bell-shaped distribution has a mean ?=1200 and standard deviation ?=340.  Find the proportion…

A: Theoretical distribution is a branch of a frequency distribution. The theoretical distribution…

Q: A National Center for Health Statistics study states that the mean height for adult men in the…

A: Given information: μHeight=69.4σHeight=3.1μIQ=100σIQ=15 A) xHeight=75 Apply normal distribution:…

Q: The reading speed of second grade students in a large city is approximately normal, with a mean of…

A: we have given that mu=90 ,sigma=10 and sample size n=10  Z-score =(x-mu)/sigma X~N(mu, sigma^2)

Q: a. Suppose a 15 to 18-year-old male from Chile was 176 cm tall from 2009 to 2010. The z-score when x…

A: Given that Let X denotes the height of a 15 to 18 year old male from Chile in 2009 to 2010 X~N(170,…

Q: Suppose that the speeds of cars travelling on California freeways are normally distributed with a…

A: Provided information is: The speeds of cars travelling on California freeways are normally…

Q: In an examination, the mean grade is 81 and the standard deviation is 6. Find the Z-score of the…

A:

Q: If adult male heights are normally distributed with a mean of 185 cm and a standard deviation of 6…

A: The objective of this question is to find the height of an aircraft lavatory door that would…

Q: The reading speed of second grade students in a large city is approximately normal, with a mean of…

A: Given data,Mean μ=88sd    σ=10If n=10P(X>93)=?

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Mean = 243 feet SD = 54 feet Find the value of z to get answers.

Q: If adult male heights are normally distributed with a mean of 185 cm and a standard deviation of 6…

A: The objective of this question is to find the height of an aircraft lavatory door that would…

Q: Assume that the mean monthly pay for an organization is $1500 and the standard deviation is $300.…

A: Mean will be increased by $200 then the new mean will be $1700

Q: Suppose that monthly rental rates for unfurnished one-bedroom apartment in Springfield are…

A: Let X denote the monthly rental rates for unfurnished one-bedroom apartment in Springfield are…

Q: If 10 were added to each of the values in a data set that originally had a standard deviation of 6,…

A:

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Let, X=the distance of fly balls hit to the outfield (in baseball) Given that X is normally…

Q: The heights of adult men in America are normally distributed, with a mean of 69.1 inches and a…

A:

Q: c) Suppose the manager agrees to pay each employee a​ $50 bonus if they meet a certain goal. On a…

A: c) The sample size is large (>30) indicating that the distribution is approximately large. The…

Q: .SOlve for all the parts in the question correctly.   B) According to​ researchers, the mean length…

A: a) It is given that the sample mean is 21.8 and the population standard deviation is 3.0.

Q: According to the records of an electric company serving the Boston area, the mean electric…

A: The mean and standard deviation are 1650 and 320, respectively.

Q: Suppose that heights of adult men in the United states are normally distributed with a mean of 71…

A:

Q: 4) According to one pollster, 59 % of people are afraid of flying. Suppose that a sample of size 26…

A:

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Given information- Population mean, µ = 255 feet Population standard deviation, σ = 43 feet Let, X…

Q: a. Plot the frequency chart of monthly excess stock returns, and compute mean, volatility (i.e.,…

A: We have, Mean=0.0013146sd=0.0862379skewness=0.2246Kurtosis=5.49999 Skewness measures the lack of…

Q: data set, which has a bell-shaped distribution, has a mean of 250 and a standard deviation of 10.…

A: Solution: Let X has bell shaped distribution ( normal)  with mean μ=250 and standard deviations σ=…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: The heights of adult men in America are normally distributed, with a mean of 69.4 inches and a…

A: Mean (Adult men) = 69.4 Standard deviation (Adult men) = 2.68 Mean (Adult women) = 64.3 Standard…

Q: 3. The heart rate for a group of patients at a local hospital is normally distributed with a mean of…

A: Given that mu = 97,s.d=18

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: According to the records of an electric company serving the Boston area, the mean electric…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: GivenMean =253Standard deviation =45 a)Let X be distribution of distance of fly balls hit to…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: Suppose that the speeds of cars travelling on California freeways are normally distributed with a…

A: Given Information: The speeds of cars travelling on California freeways are normally distributed…

Q: If the population mean for women's heights is 66" with a population standard deviation of 3", what…

A:

Q: Suppose the current annual salary of all teachers in the Philippines have a normal distribution with…

A: Solution-:Given: Let, X= The current annual salary of all teachers in the Philippines  We want to…

Q: Contrary to popular opinion, a psychologist claims that the mean IQ score of math instructors ... is…

A:

Q: 29. The average salary in Company A is $8000. The average salary in Company B is $7000. If an…

A: The average salary in Company A is $8000. The average salary in Company B is $7000.An employee who…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Given data,Mean μ=247sd    σ=53

Q: a) If one fly ball is randomly chosen from this distribution, what is the probability that this ball…

A: Mean = 245s = 54