h students to compete a certain examination is 50.6 minutes. The standard deviation is 6 minutes. Assume that the variable normally distributed. What is the probability that a randomly selected senior high school student will com

Q: The starting salary for a computer programmer major has a mean of $39,269 and a standard deviation…

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: The time taken to download a particular app has been found to be normally distributed, with an…

A:

Q: Find the probability that the weekly unemployment benefit for a person in Idaho is less than U.S.…

A: Let , X→N(μ=272 , σ=43) Our aim is to find the probability that the weekly unemployment benefit for…

Q: A manufacturer produces widgets that are packaged in boxes of 200. The probability of a widget being…

A: It is given that the number of packaged widget boxes (n) is 200, and the probability, number of…

Q: A manufacturer produces widgets that are packaged in boxes of 250. The probability of a widget…

A: Binomial distribution : A Binomial is a type of distribution which has two possible outcomes. i.e.,…

Q: The mean weight of junior high school students is µ = 45 kg. If a random sample of 90 students is…

A: Given: μ=45n=90σ=6

Q: The amount of soda in a randomly selected bottle varies according to a normal distribution with mean…

A: From the given information,   Mean = 7 Standard deviation = 8   The objective is to find the…

Q: The Mean height is 67 inches.  The standard deviation is 3.5 inches.  Assume the data is normally…

A: A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Q: A Cuckoo Maran hen lays a mean 300 eggs per year with a standard deviation of 12.7 eggs. The…

A:

Q: he mean life of a battery is 50 hours with a standard deviation of 7 hours. The manufacturer…

A: Given data,Mean μ=50standard deviation σ=7P(X<40)=?

Q: The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard…

A: Z=x-μσ~N(0,1) μ=268, σ=15

Q: 20% of the students in a class of 400 are planning to go to graduate school. The standard deviation…

A:

Q: The weight of football players is normally distributed with a mean of 180 pounds and a standard…

A:

Q: The reading speed of second grade students is approximately normal with a mean of 90 words per…

A: Given data,μ=90σ=10P(X>95)=?

Q: Furnace repair bills are normally distributed with a mean of 263 dollars and a standard deviation of…

A: Here, µ = 263 and σ = 25.

Q: The average age of the company’s presidents is 60 years old. Assume the variable is normally…

A: Given data :  μ=60σ=5

Q: The amount of rain falling in Waimea Canyon State Park, Kauai is normally distributed with a mean of…

A: Let x¯ is defined as the mean rain of 16 randomly picked days which follows normal distribution. The…

Q: Find the standard deviation, σ, for the binomial distribution which has n = 48 and p = 3/5. Round…

A: Given: n = 48 p=35

Q: What​ women's height corresponds to a​ z-score of −1.80​? b. Professional basketball player Evelyn…

A: It is given that For men, mean = 64, and SD = 2.5 For women, mean = 73, and SD = 2

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

A: Given Information: Mean μ=196 Standard deviation σ=22 Let X denote the number of red meat a person…

Q: A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet…

A: Given,mean(μ)=8.4standard deviation(σ)=1.8sample size(n)=40

Q: The amount that people pay for their cellphone service is normally distributed with a mean of $136…

A:

Q: The lifespan of a laptop battery is normally distributed. If the mean lifespan of a battery is 4…

A: Let , X be the lifespan of a laptop battery. X follows Normal distribution with , Mean = μ = 4 years…

Q: The commuting time for a student to travel from home to a university campus is Normally distributed…

A: Let X be the commuting time for a student to travel from home to a university campus is Normally…

Q: A final exam in Math 160 has a mean of 73 with a standard deviation of 7.8. If 24 students are…

A: Given n=24 Mean=73 Standard deviation=7.8

Q: Find the probability that a randomly selected year of rain in Sydney, Australia has a yearly…

A: Given Population mean μ=137, population standard deviations σ=69, Let X be the rain in Sydney Note:…

Q: The average outstanding bill for delinquent customer accounts for a national department store again…

A:

Q: Suppose the time people take to find a parking spot at the annual State Fair is normally distributed…

A:

Q: The results of a nationwide aptitude test in mathematics are normally distributed with 80 as the…

A: Solution

Q: The time it takes for acrylic paint to dry follows a normal distribution. If the mean is 2 hours and…

A: Solution: Let X be the time it takes for acrylic paint to dry. From the given information, X follows…

Q: e time taken to complete an exam folows a normal probability distribution with a mean of 60 minutes…

A:

Q: The lifetime of a particular brand of AA batteries follows a normal distribution. The mean lifetime…

A: Correct answer is d. 0.8944

Q: On the daily run of an express bus, the average number of passengers is 48. The standard deviation…

A: Mean = 48 Standard deviation = 3

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

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

Q: What is the probability that the jewelry store will have to pay off on its promise?

A:

Q: A senior high student commutes daily from home to school. The average time for a one way trip is 20…

A: Given The data is as follows: μ=20σ=4

Q: According to a study, the salaries of registered nurse are normally distributed with a mean of 56310…

A: Given,mean(μ)=56310standard deviation(σ)=5038

Q: A study found that the heights of college males follow a normal distribution with a mean of 70…

A: Given information- Mean height, μ = 70 inches Standard deviation, σ = 2.5 inches We have to find the…

Q: Johnson Electronics Corporation makes electric tubes. It is known that the standard deviation of the…

A: Given: x=2500σ=145n=105 The probability that the sample mean is within 22 hours of the mean life of…

Q: Assume that​ women's heights have a distribution that is symmetric and​ unimodal, with a mean of 64…

A: As per the multiple questions rule, answering first question. Please repost the second question…

Q: he average weekly unemployment benefit in Idaho is $272. Suppose that the benefits are normally…

A: We have given that  Sample size n=15 , mu=272 ,sigma =43 X~N(mu,sigma^2)

Q: The amount of soda in a randomly selected bottle varies according to a normal distribution with mean…

A: Let x be the amount of soda in a randomly selected bottle varies which follows normal distribution…

Q: A set of scores in Statistics examination is approximately normally distributed with a mean of 74…

A: Given: The value of mean is, μ=74. The value of standard deviation is, σ=7.9. The objective is to…

Q: The average height of women is 64 inches. The standard deviation is 2 inches. The heights have a…

A: Let, X= height of women  Given that X follows normal distribution with mean= 64 inches and standard…

Q: The number of hours spent per week on household chores by all adults has a mean of 28 hours and a…

A:

Q: FIND THE STANDARD DEVIATION The number of items sold per day at a retail store, with its…

A: We have the probability distribution

Q: The mean salary for graduates entering the actuarial field was $63,000. Salaries are approximately…

A: Given information: Mean salary for graduates entering the actuarial field μ=63,000 Standard…

Q: The lifetime of a particular brand of AA batteries follows a normal distribution. The mean lifetime…

A: Correct answer is d. 0.0606

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

A: GivenMean(μ)=63.6standard deviation(σ)=2.5sample size(n)=100

Q: Solve the problem. Assume that male Siberian huskies' weights are normally distributed with a mean…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.