he average price of a home in your community is $200,000 with a standard deviation of $30,240 dollars. A random sample of 81 homes is drawn from the population of homes. Use R/Rcmdr to find the probability that the mean price of the 81 homes is no more than $199,000 dollars? Choose the most correct (closest) answer? a.0.513 b.0.487 c.0.383 d.0.617

Q: bank’s loan officer rates applicants for credit.  The ratings are normally distributed with a mean…

A: Given,

Q: The basketball players are selling tickets to their game. They have determined the number of tickets…

A: MEAN :- Arithmetic mean (mean) of a set of observations is their sum divided by the number of…

Q: Assume that the heights of men are normally distributed with a mean of 71.3 inches and a standard…

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

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

A: Given,   Mean = 63.6 Standard deviation = 2.5 Sample size = 100   The objective is to find the…

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

A: Answer Sample size [n] =50Mean =196Standard deviation =22

Q: The average income in the city of Red Deer is $85,000 with a standard deviation of $20,000.  A…

A: It is given that the mean is $85,000 and the standard deviation is $20,000.

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: The probability that an individual is left handed is 0.15 in a class of 60 students. What is the…

A: Given data: The given probability is p=0.15. The numbers of students are n=60. The expression for…

Q: A population has a mean of 53 and a standard deviation of 21. A sample of 49 observations will be…

A: We have to find given probability.

Q: Find the probability that a sample of 18 has a sample mean below 32. The population mean is 24 and…

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

Q: At an airline company, according to the records, the mean age of pilots is 36.2 years, and the…

A:

Q: A quart of Parker's milk contains a mean of 39 grams of butterfat, with a standard deviation of 2…

A: Mean = 39 Standard deviation = 2

Q: If the probability of defective bolt is 0.1, find the mean and the standard deviation for the number…

A: Given the probability of a defective bolt is, 0.1 That is, p=0.1 The total number of bolts is, n=400…

Q: In a chemical factory, the average number of workers is 450 who work on daily basis. The standard…

A:

Q: Find the indicated probability. The weekly incomes of a summer intern in Tesla are normally…

A: Given data,Mean μ=1500sd    σ=300P(X<1200)=?

Q: The sales of a salesman average $500 with a standard deviation of $15.2. He gets a $100 commission…

A: The sales of a salesman average $500 with a standard deviation of $15.2. He gets a $100 commission…

Q: A survey indicates that for each trip to the supermarket, a shopper spends an average of 45 minutes…

A: Given that, The lengthsnof time spent in the store are normally distributed and are represented by…

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: In company XYZ, the success of an email to land into a spam folder is 4%. If an account received 20…

A: Solution To find the probability we will use Excel  Given data is  n= 20

Q: A successful basket ball player has a height of 6 feet 4 inches. Based on statistics his height…

A: As given, The basketball player has a height of 6 feet 4 inches and when his height is converted to…

Q: The body temperatures of adults are normally distributed with a mean of 98.6° F and a standard…

A: Z= x¯-μσn~N(0,1) n  = 36 , x¯ = 98.6 , μ = 98.6 , σ = 0.6

Q: At an airline company, according to the records, the mean age of pilots is 36.2 years, and the…

A:

Q: The probability that a patient recovers from a delicate heart operation is 60%. There are 20…

A: Solution: Let X be the number of recovered patients and n be the sample number of patients under an…

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: bank’s loan officer rates applicants for credit. The ratings are normally distributed with a mean of…

A:

Q: A dice is rolled three times a. Find the probability of getting exactly 2 fours  b. Find the mean,…

A: Let X be a random variable from Binomial distribution with parameter n and p. Mean = np  Variance=…

Q: The number of hours it takes for symptoms of a viral disease to show from the time of infection…

A:

Q: A civil engineer takes a public ride going to his firm. The average time for his trip is 24 minutes,…

A: Given : A civil engineer takes a public ride going to his firm.  The average time for his trip is 24…

Q: The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 80…

A:

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

A: Solution-: Given: μ=196,σ=22,n=50 Let, X= be the random variable We want to find P(the mean of…

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: The population mean for the exam is 70 and standard deviation is 5 μ=70σ=5 Cody's exam score is 80

Q: a study of 880 homeowners in a certain area showed that the average value of the homes was $82,000,…

A: Answer: From the given data, Mean (μ) = 82000 Standard deviation(σ) = 5000 Sample size(n) = 50 X…

Q: Assume that an individual's golf scores are normally distributed with a mean of 90.4 and a standard…

A: Normal Distribution  u = 90.4 n = 5.3 p(87 < x < 95) = ?

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

A:

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

A: