The weights of students in a large statistics class vary according to a normal distribution with mean 560 pounds and standard deviation 145 pounds What percent of students weigh less than 540 pounds and 580 pounds

Q: The annual per capita consumption of oranges (in pounds) in the United States  can be approximated…

A: It is given that the mean and standard deviation are 19.2 and 4, respectively.

Q: Describe the properties of range, mean deviation, and standard deviation.

A: Properties of range:- 1.) The value of range is always non-negative. (either positive or equal to…

Q: What meadure of variability would you use for a data set with a normal distribution?

A: 1. Basic Arithmetic:You should be comfortable with basic arithmetic operations such as addition,…

Q: The amount of corn chips in a 16 - ounce bag by the dispensing machine has a normal distribution…

A: It is given that mean is 16.5 and standard deviation is 0.2.

Q: a. State the multiple regression equation. Yi -*C---) X1*__--) X2; (round two decimal places as…

A: Given output, From the output,  regression equation is Y=10.31+0.67(Revenue)+0.83( Efficiency).…

Q: The weights of students in a large statistics class vary according to a normal distribution with…

A:

Q: Assume that the speed of automobiles on an expressway during rush hour is normally distributed with…

A: The required Percentage is, 3.6%  the detailed solution is as follows below:

Q: Suppose that the distribution of touchdowns (in football) is normally distributed with a mean of 250…

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

Q: A succesful basketball player has a height of 6 feet 4 inches or 193 cm based on statisc from data…

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Q: The weight of a type of dog follows Normal distribution with mean of 10 pounds and standard…

A: It is given that the mean and standard deviation are 10 and 2.

Q: A standardized measure of achievement motivation is modeled by a normal distribution with a mean of…

A: Obtain the achievement score The achievement score is obtained below as follows:

Q: College students average 7.4 hours of sleep per night with a standard deviation of 45 minutes. If…

A: Given data  college students average 7.4 hrs of sleep with standard deviation of 45mins

Q: The weights of students in a large statistics class vary according to a normal distribution with…

A:

Q: Steel rods are manufactured with a mean length of 27 centimeter​ (cm). Because of variability in the…

A: Given,mean(μ)=27standard deviation(σ)=0.06

Q: The weights of tablets are normally distributed with mean 254 mg and standard deviation 4 mg.  What…

A:

Q: The admission committee of AUCA passes 61% of those who took the exam. If the scores follow a normal…

A: We have given that.   X~N( μ , ?^2 )   μ =350 , ? =25   Z-score =( x - μ )/?

Q: The effect size is a measure of the magnitude of a treatment effect in standard deviation units.…

A: Given that, The effect size is a measure of the magnitude of a treatment effect in standard…

Q: The distribution of the weights of dogs at a local rescue shelter is Normal, with a mean of 38…

A:

Q: Assume that women have heights that are normally distributed with a mean of 63.6 inches and a…

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Q: The weights of tablets are normally distributed with mean 254 mg and standard deviation 4 mg.  What…

A: We have given , Mean(u) = 254 mg. Standard deviation (sigma) = 4 mg. We have to find  What…

Q: Americans love ice cream .The annual per capita consumption of ice cream ,in pounds ,in the united…

A: It is given that the mean is 16.5 lbs and standard deviation is 2.5 lbs.

Q: lies

A: Let X be the random variable such that the  daily water usage per person in Quezon City. The daily…

Q: The distribution of heights of adult Filipino is approximately normal with a mean of 69 inches and…

A:

Q: Hogie lizards have tail lengths that are normally distributed with a mean of 22.5 cm and a standard…

A:

Q: Professional tennis player Novak Djokovic hits the ball extremely hard. His first-serve speeds can…

A: M=Mean=112, sd=standard deviations=5

Q: unit. The production cost is given by a discrete distribution that 60% the cost is about $20 per…

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Q: Use Chebyshev's Theorem to find what percent of the values will fall between 120 and 150 for a data…

A: The percentage of observations that are within k std dev. of the mean is 100(1-1k2)%

Q: Head circumferences of some males have a bellshaped distribution with a mean of 57 centimeters and a…

A: Head circumferences of some males have a bellshaped distribution : Bell shaped distribution means…

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A:

Q: The weights of students in a large statistics class vary according to a normal distribution with…

A:

Q: If the heights of intramural college basketball players are normally distributed with mean u =…

A: Given,μ=70σ=6.5P(63.5<X<76.5)=?

Q: The heights of adult men in America are normally distributed, with a mean of 69.3 inches and a…

A: Let "x" be the height of women

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days…

A: Let "X" be the lengths of pregnancies in a small rural village in days.

Q: For woman at Hartford college, times to run 400 meters are normally distributed with a mean of 85…

A: Solution: Let X be the time to run 400 meters. From the given information, X follows normal…

Q: The systolic blood pressure of 18 year old woman is  a roughly bell shaped distribution with mean of…

A:

Q: What level of measurement do the variance and standard deviation assume?

A: Variance and standard Deviation tells about the spread or variation in the dataWe calculate the…

Q: ter and a standard deviation of 25 milligrams per deciliter. What cholesterol level separates the…

A: mean = 215 standard deviation = 25 What cholesterol level separates the lowest 10​% from the highest…

Q: The weights of students in a large statistics class vary according to a normal distribution with…

A:

Q: What are the characteristics of a normal distribution? What two characteristics make a distribution…

A: Given that  What are the characteristics of a normal distribution?   What two characteristics make a…

Q: During the fall season of racing at Dover International Speedway, the mean speed of the cars racing…

A: Assume that the racing speeds are normally distributed.

Q: mean length of 25 cm. Because of the variability in the manufacturing​ process, the lengths of the…

A: Population mean μ =25 Population standard deviation =0.08

Q: Give the mean and the standard deviation of the distribution of means for mean=100; Variance=100;…

A:

Q: The fuel efficiency of cars currently registered in the Commonwealth of Virginia is normally…

A: X follows a Normal distribution with mean = 24 and S.D = 6 Then z=(x-mean)/SD = (x-24)/6  follows…