Assume that blood pressure readings are normally distributed with a mean of 125 and a standard deviation of 4.7. If 32 people are randomly selected, find the probabillty that their mean blood pressure will be less than 127. 0.6648 O 0.8219 O 0.9920 O 0.0080

Q: Assume that the hourly costs of operating a commercial aircraft are normally distributed with a mean…

A:

Q: The weights for a baby boy is normally distributed with a mean score of 7lbs and a standard…

A: As you mentioned g bit so i have solved only g bit.

Q: The salary for workers at a company are normally distributed with a mean of $60,000 and a standard…

A: Given data,Mean μ=60,000sd     σ=9000If n=36P(A<X<$77640)=0.95A=?

Q: What proportion of the population would be expected to have a petal length (a) greater than 4.5 cm?…

A: Let , X→N(μ=3.5 , σ=0.5) Our aim is to find the following :  a) The proportion would be expected to…

Q: If we know that the length of time it takes a college student to find a parking spot in the library…

A: # X be the  length of time it takes a college student to find a parking spot in the library parking…

Q: The distribution of scores on the SAT is approximately normal with a mean of u = 500 and a standard…

A: Mean(μ)=500 Standard deviation(σ)=100 The objective is to find the min. SAT score needed to be…

Q: The heights (in inches) of males in the U.S. are believed to be normally distributed. The average…

A:

Q: Assume that the heights of a population of adults form a normal distribution with a mean µ =69…

A: Consider that there are 12 inches in 1 foot.The provided information is:

Q: Suppose that wedding costs in the Caribbean are normally distributed with a mean of $6500 and a…

A: Given: μ=6500σ=840 As per empirical rule, 68% of data lie within 1 standard deviation of the mean…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A:

Q: Assume that adults have IQ scores that are normally distributed with μ=38 and a standard deviation…

A:

Q: Suppose that wedding costs in the Caribbean are normally distributed with a mean of $8000 and a…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: Let z scores are normally distributed with mean of μ=0 and standard deviation of σ=1 The value of b…

Q: Suppose that 100,000 recent grads have starting salaries which are normally distributed with a mean…

A: Given that  μ=120,000σ=20,000 b) Consider the probability that the salary above $131,200 is,…

Q: Assume the credit card balances of younger college educated employed persons are normally…

A: Given data,μ=6358σ=1907P(X<5500)=?

Q: Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of…

A: we have to find given probability..

Q: The mean weight of 500 male students at a certain college is 80 kg, and the standard deviation is 8…

A:

Q: Suppose that wedding costs in the Caribbean are normally distributed with a mean of $6000 and a…

A: Note: Hey as per our honor code i can answer only three sub parts. Thanx

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: Suppose that the scores on a statewide standardized test have a bell shape distribution with a mean…

A: Let X be the random variable from normal distribution with mean (μ) = 80 and standard deviation (σ)…

Q: Assume that X is normally distributed with a mean of 10 and a standard deviation of 2. Determine…

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

Q: A consumer group claims that the mean annual consumption of banana by a person in the Philippines is…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 103 and a standard…

A: It is given that the IQ scores follow normal distribution with mean 103 and standard deviation 15.…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(–…

A: Given X is normally distributed X ~ N(0,1)

Q: Suppose the heights of men are normally distributed with mean, µµ = 70 inches, and standard…

A: Given information Population means µ = 70 inches Standard deviation σ = 4 inches We have to find the…

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

A:

Q: Assume the credit card balances of younger college educated employed persons are normally…

A:

Q: Suppose that the scores on a statewide standardized test are normally distributed with a mean of 67…

A: From the provided information, Mean (µ) = 67 Standard deviation (σ) = 6 Let X be a random variable…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A:

Q: Assume that the heights of a population of adults form a normal distribution with a mean µ =69…

A: It is known that, there are 12 inches in 1 foot.The provided information are:

Q: ) Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…

A: Let "X" be the IQ score of adults. Find z-value (z): Refer Standard normal table/Z-table, Lookup…

Q: Suppose a nomal distribution has a mean of 50 and a standard deviation of 3. What is Pes 47)?

A:

Q: 1. Assume that the average yearly pay of all teachers in the Philippines follows a normal…

A: Here all are normally distributed

Q: Assume that X is normally distributed with a mean of 12 and a standard deviation of 4. Determine…

A:

Q: Assume that the test scores for a large class are normally distributed with a mean of 64 and a…

A: Solution-: Given: We find P(the class received a higher score than 78)=?

Q: A cement manufacturer claims that the average weight of his product is 40 kgs. with a standard…

A: Given: n= 45.0, x̄= 38.71 ,s= 2.35 µ= 40.0, significance level(∝)= 0.01 define hypothesis;- Null…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: Let z-scores are normally distributed with a mean of 0 and a standard deviation of 1.

Q: The average number of moves a person make in his/her lifetime is 12 and the standard deviation is…

A: Given,sample size(n)=25mean(μ)=12standard deviation(σ)=3.5

Q: The 2008 General Social Survey asked a large number of people how much time they spent watching TV…

A: According to the given question, The 2008 General Social Survey asked a large number of people how…

Q: Assume X is normally distributed with a mean of 10 and a standard deviation of 2.1. Determine

A:

Q: The average salary for a certain profession is ​$80,000. Assume that the standard deviation of such…

A: We have to find correct answer..

Q: Assume that a nomral distribution has a mean of 22 and a standard deviation of 7. What percentage of…

A:

Q: Assume that the heights of women are normally distributed with a mean of 62 inches and a standard…

A: Consider X be random variable which follows normal distribution indicating the height of women. The…

Q: A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of…

A: (a) Let μ denotes the population mean tuna consumption. The claim of the test is that the mean tuna…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.7 and a standard…

A: Given Data : Population Mean,μ = 100.7 Population Standard Deviation,σ = 18.9

Q: Assume that the test scores from a college admissions test are normally distributed, with amean of…

A: Hence,the percentage of the people taking the test score between 400 and 500 is…

Q: Assume that the error term u is normally distributed with a mean of 0 and a standard deviation of…

A: The term standard deviation is denoted by the symbol sigma (σ).  It is given that u is normally…

Q: Assume that the heights of women are normally distributed with a mean of 62   inches and a standard…

A: Given data normally distributed with mean of 62 inches and standard deviation of 2.5 inches.

Q: average GPA of 2.78 with a standard deviation of 0.45.

A: Given that  GPA is normally distributed . A sample of university students has an average GPA of 2.78…

Q: assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard…

A: X follows a Normal distribution with mean = 5.67 and S.D = 0.07 Then z=(x-mean)/SD = (x-5.67)/0.07…

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.