The diameter of Ping-Pong balls manufactured at a large factory is normally distributed with a mean of 1.30 inches and a standard deviation of 0.2 inch. If you select a random sample of 16 Ping-Pong balls, what is the probability that the sample mean diameter is less than 1.28 inches? 0.2514 0.0228 0.4602 0.3446 0.1587

Q: The diameter of bolts produced by a certain machine are normally distributed with a mean of 0.30…

A:

Q: According to a study done by Pierce students, the height for Hawaiian adult males is normally…

A:

Q: Suppose that NBA players average 34.4 points per game with a standard deviation of 8.65. A random…

A: GivenMean(μ)=34.4standard deviation(σ)=8.65sample size(n)=138

Q: The weight of small dogs can be modelled by a normal distribution with a mean weight of 8.4 kg and a…

A: The provided information is:

Q: If the mean height of a population of students is 68 inches with standard deviation 3 inches, what…

A: Given that      The mean height of a population of students is 68 inches with standard deviation 3…

Q: The lengths of lumber a machine cuts are normally distributed, with a mean of 96 inches and a…

A: Given,Mean, μ = 96 inches.Standard deviation, σ = 0.5 inch.Let X be a random variable represents the…

Q: A population of normally distributed scores has a mean of 50 and standard deviation of 12.  What is…

A: Given information- Population mean, µ = 50 Population standard deviation, σ = 12 Sample size, n = 36…

Q: The weekly salaries of teachers in one state are normally distributed with a mean of $980 and a…

A: Let, X=The weekly salaries of teachers in one state  Given that X is normally distributed with a…

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Mean = 139.1 Standard deviation = 1.1

Q: A statistics professor is training for a 5K race. Her training times in a 5K follow a normal…

A: It is given thatMean, μ = 25Standard deviation, σ = 0.5Z-Score, Z = ( X - μ )/σwhere, Z be the…

Q: The Monthly salaries of teachers at Los Angeles Trade Tech are normally distributed with a mean of…

A: Given information: The monthly salaries of teachers at Los Angeles Trade Tech are normally…

Q: Household incomes in the city of Tampa Bay  are right-skewed with an average of 50,270 and standard…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: In a study of work patterns, data from 669 subjects were collected. For the time spent in child…

A: We have given that,  Let X be the random variable from normal distribution with mean (μ) = 23.08,…

Q: weights of packages shipped by a company are normally distributed with a mean of 32.8lbs and a…

A: Given,mean(μ)=32.8standard deviation(σ)=5.4

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: The starting salaries of individuals with an MBA degree are normally distributed with a mean of…

A: According to the given information in this question We need to find the probability that MBA degree…

Q: The heights of 18-year-old men are normally distributed, with a mean of 68 inches and a standard…

A: Given information- Population mean, µ = 68 inches Population standard deviation, σ = 3.3 inches Let…

Q: Blood pressure is distribued Normally, with a mean of 85 mm and a standard deviation of 20 mm. As a…

A: Given,mean(μ)=85standard deviation(σ)=20sample size(n)=100

Q: The number of automobile accidents per week in Toronto is normally distributed with a mean of 16.3…

A:

Q: approximately

A:

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Let X denote the lengths of the steel rods are normally distributed with a mean of μ=94.6 cm and a…

Q: Blood pressure is distribued Normally, with a mean of 85 mm and a standard deviation of 20 mm. As a…

A:

Q: fertility rate is the number of births per 1000 women aged 15-44. The mean fertility rate of the 50…

A: According to the given information in this question We need to find the following probability

Q: The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a…

A: Given,Mean, μ = 490Standard deviation, σ = 45Let X be a random variable represents the weekly…

Q: suppose the walking step lengths of an adult males are normally distributed with a mean of 2.7 feet…

A: Given that  Mean=μ=2.7 Standard deviation=σ=0.3 Sample size=n=70 X~Normal(μ=2.7,σ=0.3)

Q: The average resident of Metro City produces 770 pounds of solid waste each year, and the standard…

A: We have to find probability

Q: The heights of strawberry plants are Normally distributed with a mean of 12 inches and a standard…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Suppose the average age of a Tulane undergraduate is 20 years with a standard deviation of 1.2…

A:

Q: The speed of cars driving on Route 1 is normally distributed with a mean of 60 mph and a standard…

A: It is given that the, The speed of cars is normally distributed with a mean of 60 mph and a standard…

Q: On a mathematics test in a high school, scores are normally distributed with a mean of 77 and a…

A: Given that.   X~N( μ , ?^2 )   μ=77     , ?=16.8   Z-score =( x - μ )/?

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: A report claimed that children between the ages of 2 and 5 watch an average of 25 hours of…

A: Given, Mean = 25 Standard deviation = 3 Sample size = 40   The objective is to find the probability…