The WNBA was founded in 1996 as the women's counterpart to the NBA. The heights of the women playing in the WNBA have a symmetric distribution with a mean of 71.5 and a standard deviation of 3.7 inches.

Q: Suppose that the lifetimes of light bulbs are approximately normally​ distributed, with a mean of…

A:

Q: Given a sample data set with a Standard Deviation of 1.4, what is the Variance of the data set.?…

A: The given value of sample standard deviation is, s = 1.4 Using the standard deviation, the formula…

Q: A pharmaceutical company claims that a drug is effective in treating 90% of people having severe…

A: Given that,The random variable follows binomial distribution,n=6p=90%=0.9,q=1-p, q= 0.1

Q: 1) Which sample will have the larger mean number of books read? 2) Which sample will have the larger…

A: The given histogram is:

Q: Students at Lake Mean PE class ran a 5K with a mean run time of 31 minutes and a standard deviation…

A: Given that Mean = 31 standard deviation = 4  We need to find probability between 23 and 27…

Q: What is the variance and standard deviation of 2, 4, 5, and 6?

A:

Q: On a scale designed to measure attitudes toward immigration, two college classes scored as follows.…

A: Question 8: Class A: The value of mean for class A is, Mean=∑ixiN=4+6+2+1+1+16=156=2.5 Thus, the…

Q: The time that a shopper spends in the grocery store is normallydistributed, with a mean of 45…

A: Given Information: The time that a shopper spends in the grocery store is normally distributed with…

Q: Last year, the numbers of skateboards produced per day at a certain factory were normally…

A: Here we use the formula ; z=(x-mean)/standard deviation

Q: sets represented by the following histograms has the largest standard deviation?A data set lists the…

A: Given: Minimum = 3 Median = 15 Q3 = 16 IQR = 4 Maximum = 19

Q: The sale price of a certain model of grand piano across the country is approximately normally…

A: Given: Mean = 70000, Standard deviation =5400 Let Y defines the sale of certain model of grand…

Q: In a normally distributed data set with a mean of 24 and a standard deviation of 4.2, what…

A:

Q: Calculate the sample mean and the sample standard deviation to the nearest hundreths.

A: Given: X 0.5 1.75 2 2.25 2.25 2.5 2.75 3.25 3.75 3.75 4.25 4.25 4.25…

Q: Suppose two sections of the same class take the same exam and produce the results shown in the…

A: The relative frequency distribution of section 1 scores and section 2 scores, are given.

Q: A large company has many employees and the annual salaries of those employees follow a normal…

A: X follows a Normal distribution with mean = 70000 and S.D = 12000 Then z=(x-mean)/SD =…

Q: In a random sample of 48 people, the mean body mass index (BMI) was 28.3 and the standard deviation…

A: Given that Random sample size(n) =48 Mean body mass index (x¯)=28.3 Sample standard deviation (s)…

Q: The Good-Guys Car Dealership has tracked the number of used cars sold at its downtown dealership.…

A:

Q: A highway study of 8000 vehicles that passed by a checkpoint found that their speeds were normally…

A: Answer - A highway study of  N = 8000 vehicles that passed by a checkpoint found that their…

Q: The sizes of houses in Kenton County are normally distributed with a mean of 1369 square feet with a…

A: From the given information, the mean and standard deviation are 1,369 and 171.

Q: throughout America and decides to focus on the height data, given in meters, which are repro…

A: Given data :  Height of skyscrapers ( meters) 107.5 108.2 133.6 151.4 155.8 149…

Q: The ages of a sample of Canadian tourists flying from Toronto to Hong Kong were 32, 21, 60, 47, 54,…

A: Given that,32 21 60 47 54 17 72 55 33 41

Q: The Cpa practice advisor reports that the mean preparation fee for 2017 federal income tax returns…

A: From the provided information, Mean (µ) = $273 Standard deviation (σ) = $100 X~N (273, 100) Here X…

Q: statewide, social workers average 10.2 years of experience. In a random sample, 203 social workers…

A: State the hypotheses.

Q: In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a…

A: To determine: To determine how may would you expect to be taller than 71 inches . Given data: In a…

Q: The heights of women are normally distributed with a mean of 63.6 inches and a standard deviation of…

A: Given that μ=63.6 and σ=2.5. a) The requirement that women must be at least 70 inches tall to join.…

Q: Toby's Trucking Company determined that on an annual basis, the distance traveled per truck is…

A: It is given that the mean and standard deviation are 50,000 and 12,000, respectively.

Q: If a golfer hit drives a golf ball with a mean of 180 yards and a standard deviation of 20 yards,…

A: We have given that  A golfer hit drives a golf ball with a mean of 180 yards and a standard…

Q: For a recent "Smartest State in America" article, a journalist wants to know how many people with a…

A: The mean is 5,000,000 and the standard deviation is 450,000.

Q: Find the standard deviation for the grouped data.

A: Solution; Interval Frequency (f) midpoint(x) fx (x-x)2 f*(x-x)2 50-59 7 54.5 381.5 351.5625…

Q: A grocery store's sales experience indicates that its daily apple sales follow a normal distri-…

A: (b) Obtain the cut off point for the top 10% of all daily apple sales. The cut off point for the top…

Q: Refer to the accompanying table, which describes the number of adults in groups of five who reported…

A: From the provided information, X 0 1 2 3 4 5 P(x) 0.169 0.363 0.306…

Q: A pipes manufacturer makes pipes with a length that is supposed to be 10 inches. A quality control…

A: The sample size is 39, sample mean is 10.05, sample standard deviation is 0.28. It is clear that the…

Q: An LED lightbulb manufacturer produces lights with a mean lifespan of 10,000 hours and a standard…

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

Q: The distribution of average speeds of the top 53 drivers in NASCAR is (25) roughly symmetric,…

A: Given data, Mean=184.8 sd=7.2 P(170.4<X<177)=?

Q: Which average - mean, median, or mode - is associated with the standard deviation?

A:

Q: Which of the following would be the standard deviation used in developing the p-control chart?

A: Given:  Proportion of defective product p= 0.03 Sample size n=30  To find standard deviations used…

Q: If three coins are tossed, what are the mean, variance, and standard deviation of the number of…

A: Let X denote the number of heads in tossing three coins. Let p denote the probability of getting the…

Q: The adult eastern hellbender (a type of giant salamander) has a length which is normally distributed…

A:

Q: Businesses such as General Mills, Kellogg's, and Betty Crocker regularly use coupons to build brand…

A: Note - As per our BNED policy, we are allowed to answer only three sub parts at a time. So, kindly…

Q: A high end store is looking to open new stores, but requires that 85% of the households in a…

A: Let X= income of the households  Given that X is normally distributed with mean= 98000 and standard…

Q: examination. Scores on the GMAT are roughly normally distributed with a mean of 527 and a standard…

A: Given data,μ=527σ=112P(X>437)=?

Q: Explain why s p is called the pooled sample standard deviation.

A:

Q: A firm’s marketing manager believes that total sales for next year will follow the normal…

A: Given information- Population mean, µ = $3200,000 Population standard deviation, σ = $250,000 We…

Q: Refer to the accompanying​ table, which describes the number of adults in groups of five who…

A: Mean :-  ∈x = ∑  ×. Px                           ∈x =…

Q: A report from the Illinois Department of Wildlife indicates that when a car and deer collide, there…

A: Given: 40 deer fatalities per 100 collisions between a car and a deer

Q: Find the median and the standard deviation of the scaled marks of all the students.

A: According to the answering guidelines,  we can answer only one question and the rest can be…

Q: Toby's Trucking Company determined that on an annual basis, the distance traveled per truck is…

A: It is given that the mean and standard deviation are 50,000 and 12,000.