A sample of 36 is taken from a population that is normally distributed with mean 15 and standard deviation 3. What is the probability that the sample mean will be more than 15.97? O A. 0.6268 O B. 0.9378 OC.0.0262 O D. 0.6457 O E. 0.3732

Q: In a study of births in 2007, it was found that 51% were male and 49% were female. If 100 people are…

A: Given that there are 51% are male and 49% are female & if 100 people selected randomly we have…

Q: Given a normal population distribution of adult weights, with a mean of 150, and a standard…

A:

Q: 1. The average number of milligrams (mg) of cholesterol in a cup of a certain brand of ice cream is…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A company đětěrm that on an anhual basIs, the distance traveled per company car is normally…

A:

Q: 3. A certain type of rope has an average breaking strength of 1,200 pounds. If the standard…

A: Let X be the random variable from normal distribution with average (μ) = 1200 and standard deviation…

Q: - To estimate a population mean, the sample size needed to provide a margin of rror of 2 or less…

A:

Q: Suppose that for a normal random variable X, we have a mean of µ=10 and a standard deviation of σ=3.…

A: As per guideline expert have to answer first three subpart only.

Q: Given a normally distributed population with population mean 1000 and population standard deviation…

A: Given: μ=1000σ=120n=225 The P(1010≤M≤014) is calculated as below:…

Q: 6. For the most recent year available, the mean annual cost to attend a private university in the…

A: Given that mean =20307 , s.d =4275 , p value =0.9

Q: What is the probability that a randomly selected item will weigh between 6 and 10 kg? A. 0.9104 B.…

A: Answer:-  Here, option C is correct answer.

Q: 1. The average number of milligrams (mg) of cholesterol in a cup of a certain brandof ice cream is…

A: Normal distribution- The study of the normal distribution or Gaussian distribution has multiple…

Q: 2. The width of white board markers manufactured by a company is approximately normally distributed…

A:

Q: Find the standard deviation for the given probability distribution. Round to the nearest hundredth.…

A: The probability distribution table is given. We know that, Standard deviation = E(X2)-[E(X)]2

Q: 1. The mean weight of 5-year-old children is 39.5 pounds, and the standard deviation is 3.2 pounds.…

A: Given that  X~N(μ= 39.5 , σ= 3.2 ) μ= 39.5 , σ= 3.2 , n=52

Q: A census of the labor force in a large metropolitan area found that the time it takes for people to…

A: Given: μ = 20.5 minutes σ = 15.4 minutes  n = 40

Q: mally distributed with a mean of $2.39 and a standard deviation of $0.15. 1. What is the…

A: Given: Population mean μ=2.39 Population standard deviation σ=0.15 Let X ~ N (2.39, 0.152)

Q: Suppose monthly rental prices for a one-bedroom apartment in a large city has a distribution that is…

A: The normal distribution is the most useful theoretical distribution for continuous variables.  For…

Q: Following safety protocols, Starburst serves its customers with a mean time of 7.5 minutes which…

A: If the sample size is greater than 30, then the sample means distribution can be approximated by…

Q: Given that x is a normally distributed random variable with a mean of 50 and a standard deviation of…

A:

Q: Suppose an experiment is run with a sample of 64 items from a population with a mean of 10.2 and a…

A: Here, mean µ = 10.2, the standard deviation, σ = 0.12, and n = 64.

Q: A bone density test reading between ? = −1.00 and ? = −2.30 on the standard normal distribution…

A: Standard Normal Distribution: A random variable z is said to be a standard normal variable if z…

Q: 1. Study reports that the average person uses 120 liters of water daily. If the standard deviation…

A:

Q: Suppose the heights of 18-year-old men are approximately normally distributed, with mean 69 inches…

A:

Q: Suppose weights of running shoes have an unknown distribution with mean 11 and standard deviation 2…

A:

Q: In a health examination survey of a prefecture in Japan, the population was found to have an average…

A: Given Data : Population Mean,μ = 99 Population Standard Deviation,σ = 12

Q: find the probability

A:

Q: Given a random variable X having a normal distribution with population mean=40 and standard…

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

Q: Suppose weights of running shoes have an unknown distribution with mean 11 and standard deviation 2…

A:

Q: Given a normal distribution (X) with mean = 100 and standard deviation (σ) = 10, w hat is the…

A: Let X be the random variable and it follows the normal distribution with mean μ and standard…

Q: For a normal random variable with mean 16.5 and standard deviation 0.8, find a point of the…

A: From the provided information, Mean (µ) = 16.5 Standard deviation (σ) = 0.8 Let X be a random…

Q: A sample of 36 is taken from a population that is normally distributed with mean 15 and standard…

A:

Q: Following safety protocols, Starburst serves its customers with a mean time of 7.5 minutes which…

A:

Q: If the weights of 8000 men follows a normal distribution with mean 67 kg. and the standard deviation…

A: As per our guidelines we are suppose to answer first question .

Q: Given a normal distribution (x) with mean = 100 and standard deviation () = 10what is the…

A: Given,μ=100σ=10P(X<81 or X>101)=?

Q: The probability that an individual has​ 20-20 vision is 0.16. In a class of 37 ​students, what is…

A: As per guideline expert have answer first question only dear student please upload other question…

Q: Based on data from 1996-2006 from the Western Regional Climate Center, the average speed of winds in…

A:

Q: In a biomedical research activity it was determined that the survival time, in weeks, of an animal…

A: Let X represents the animal of the type used in the experiment. Then according to the question,…

Q: Assume the average price for a movie is ​$7.35. Assume the population standard deviation is ​$0.44…

A:

Q: 4. A random sample of size 36 is taken from a population with mean 10 and standard deviation 12.…

A:

Q: #01.  The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months,…

A:

Q: One out of every 5000 individuals in a population carries a certain defective gene. A random sample…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: For a normal random variable with mean 19,500 and standard deviation 400, find a point of the…

A:

Q: In a study of life expectancy in a certain region, the mean age at death was 70 years, and the…

A:

Q: 1. The average number of milligrams (mg) of cholesterol in a cup of a certain brand of ice cream is…

A: Given,mean(μ)=680standard deviation(σ)=40

Q: Suppose that a plaque in an elevator contains the following statement: Maximum weight 3500 pounds or…

A: with a mean of 179.2 pounds and a standard deviation of 29.6 pounds?Suppose that a plaque in an…

Q: A mean undergraduate cost for tuition, fees, room, and board for four-year institutions was $26,489…

A: we have to find given probability.

Q: Suppose 150 people take a quiz, and say the mean score was a 100 out of 200 points, with a standard…

A: Given data:     The given mean score is: μ=100. The standard deviation is: σ=40. The number of…

Q: 1. The average salary of senior high school teachers is P 21,200. Assume a normal distribution with…

A: (1) Let X denote the salary of high school teachers follows normal distribution. That is, The…

Q: 4. Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1, what is…

A:

Q: What is the standard deviation of 5 randomly selected years for the first 8 months? A. 0.9720 B.…

A: Hello. Since your question has multiple parts, we will solve first 3sub parts question for you. If…