A manufacturer knows that their items have a lengths that are skewed right, with a mean of 11 inches, and standard deviation of 2.9 inches. If 36 items are chosen at random, what is the probability that their mean length is greater than 9.8 inches? (Round answer to four decimal places)

Q: The lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation…

A: Given: μ=266σ=15

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

A: Given μ=258σ=45

Q: There are 20 crew members at a given university. You want to calculate the probability that their…

A: 1.Suppose the random variable x defines the BMI of the crew members.

Q: The average price of a college math textbook is $168 and the standard deviation is $20. Suppose that…

A: The average price of a college math textbook is $168 and the standard deviation is $20. Suppose that…

Q: The lifetime of lightbulbs has a mean of 1500 hours and a standard deviation of 175 hours. A sample…

A:

Q: 4. A car salesperson notes that she sells either 1, 2, 3, 4, 5 or 6 cars per week with equal…

A:

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A:

Q: Suppose, you play a game, and the result is simply "win" or "lose". For every 15 games played, you…

A:

Q: Suppose that the speed at which cars go on the freeway is normally distributed with mean 68 mph and…

A: Given: μ=68  & σ=10         Part b: The required probability is                    P(X≥67)=…

Q: to estimate the mean height of male students on your campus, you will measure an srs of students.…

A:

Q: The amount of pyridoxine in grams per multiple vitamin pill has a mean of 180 and a standard…

A: Given,mean(μ)=180standard deviation(σ)=24sample size(n)=64

Q: Suppose a batch of metal shafts produced in a manufacturing company have a standard deviation of 2.4…

A: Given Information: Mean μ=209 Standard deviation σ=2.4 Sample size n=69

Q: Suppose that the weights of packages shipped by Atlas Shipping are normally distributed, with mean…

A:

Q: A runner for team 1 can run a race in 54.6 seconds. Team 1 has running times with a mean of 52.1…

A: given data team 1 x1=54.6μ1=52.1σ1=2.09team 2x2=53.7μ2=51.2σ2=3.53we have to find z score  and and…

Q: Assume that for the population of all unemployed individuals in Minnesota, the population mean…

A:

Q: Refer to the accompanying table, which describes results from groups of 8 births from 8 different…

A: xP(x)00.00310.02620.11830.21240.27450.22760.10870.02780.005

Q: The Brac University Basketball Team is looking for new players to join the team. The heights of all…

A: (a) Let H be the random variable depicting the heights of all the try out participants. H~N167,25…

Q: The percent fo Coloradans that own a Subaru is 56%. If you were to take a random sample of size 70,…

A: We have given that,  Let X be the random variable from binomial distribution with probability (p) =…

Q: Suppose that heights of women in Utah are normally distributed with a mean of 74 inches and a…

A:

Q: 18 men will be tested for the discus throw. if Mu= 112ft and standard deviation= 13ft. find the…

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

Q: A grocer finds that the cantaloupes in his store have weights with mean 0.7 kg and standard…

A: Given, Mean weight of cantaloupes is 700 gm. Standard deviation is 53 gm

Q: On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of…

A: Given information Mean µ = 107 Standard deviation σ = 17

Q: The mean number of words per minute (wpm) typed by a speed typist is 133 with a variance off 144…

A: Given that , = 133, 2 = 144 So , = 12, n = 90 Let  be the mean of sample. = 133  =  /n = 12/90=…

Q: a) If one fly ball is randomly chosen from this distribution, what is the probability that this ball…

A: Mean = 245s = 54

Q: he mean weight of all Goliath grouper caught on the Treasure coast is 377 pounds, with a standard…

A: The normal distribution  in the center are generally denser and basically less denser at tails.…

Q: A teacher says that the top 20​% of the class received an A on the last test. The scores were…

A: Obtain the minimum score required to get on A. The minimum score needed to get A and the top 20% of…

Q: Imagine the mean women’s foot size is a 7.5 with standard deviations of 1.5. a. What percentage of…

A:

Q: a. What is the distribution of ¤? ¤ ~ N( b. For the group of 10, find the probability that the…

A: Normal distribution is also known as the Gaussian distribution . It is widely used in statistics .

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.