Thicknesses of shims are normally distributed with mean 1.5 mm and standard deviation 0.2 mm. Three shims are stacked, one atop another. a) Find the probability that the stack is more than 5mmthick. b) Find the 80th percentile of the stack thickness. c) What is the minimum number of shims to be stacked so that the probability that the stack is more than 5 mm thick is at least 0.99?

Q: Regarding the speeds at which cars pass through a checkpoint. Assume the speeds are normally…

A:

Q: Find the indicated probability. 43) The diameters of bolts produced by a certain machine are…

A: GivenMean(μ)=0.30standard deviation(σ)=0.01

Q: need a normal probability graph n=10, p=0.5.

A: Ramdom variable x from binomial distribution with n=10 and probability p=0.5 To draw the graph by…

Q: SAT exam scores are normally distributed with mean 500 and standard deviation 100.  Give the…

A: Let X= SAT exam score  Given that X follows normal distribution with mean=500 and standard deviation…

Q: SAT exam scores are normally distributed with mean 500 and standard deviation 100.  Give the…

A: Let X= SAT exam score  Given that X follows normal distribution with mean=500 and standard deviation…

Q: survey of 16 energy drinks noted the caffeine concentration of each drink in milligrams per ounce.…

A: Given data, 9.1,9,7.4,7.6,7.9,8.8,9,8.8,8.9,9.1,8.1,9,9.1,8.1,8.7,9   Sample standard deviation =?

Q: he height of the candidate for Police Officer at JayBie Town is normally distributed with a ean 165…

A: Let X be the random variable from normal distribution with mean (μ) = 165 cm and standard deviation…

Q: 2) A bottler of drinking water fills plastic bottles with a mean volume of 1008 millilit (mL) and…

A: The mean is 1008 and the standard deviation is 7.

Q: Q2) The recording speed of cars driving to arrive the house. The speed limit read 20 mph. These…

A: Given, μ = 23.84σ = 3.56n = 10The speed limit is 20 mph       To find, a. Which would be more…

Q: a city's hotel rates (x) follow a normal distribution with mean $115 and standard deviation $21. a)…

A: We have given that  mu= 115 , sigma =21  Row score  X=140 Z-score =(x-mu)/sigma

Q: The company produces 100 kits daily and each kit has a mean output voltage of 12.5 volts and a…

A: Mean()=12.5standard deviation()=2.2

Q: In a dependent sample t-test, you calculate the standard deviation for the  a) difference scores b)…

A: In this we have to tell that, for what values we calculate the standard deviation while using the…

Q: New York City is the most expensive city in the United States for lodging. The mean hotel room rate…

A: Given that μ = 204 , σ =55

Q: Two samples are given. Find each sample's a) standard deviation and b) coefficient of variation.…

A: A: 2,4,4,5,5 B: 2,3,7,5,3,7,11 We have to find a...sample standard deviation of A       sample…

Q: The time taken by employees at Grace Floral shop to put a bouquet together has a normal distribution…

A:

Q: Blood glucose levels are normally distributed with a mean of 85 mg/dl and a standard deviation of 25…

A: Answer: Given that:   ‘x’ is Normally distributed with                 Mean  µ =85       standard…

Q: random variable has a mean of 6.5 and a standard deviation of 3.45. With a random sample of 40…

A:

Q: Q2) The recording speed of cars driving to arrive the house. The speed limit read 20 mph. These…

A: Given, n = 100 Mean, μ = 23.84 standard deviation, σ = 3.56

Q: Assume that the life of a roller bearing follows a Weibull distribution with parameters β = 2 and δ…

A:

Q: ind the indicated probability or percentage for the normally distributed variable. Assume that the…

A: Given data,μ=5.6σ=0.070P(5.48<X<5.82)=?

Q: The average speed of cars passing a checkpoint is 60 miles per hour with a standard deviation of 8…

A: From the provided information,n = 50

Q: Provide an appropriate response. 21) One year, professional sports players salaries averaged $1.9…

A:

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

A:

Q: The breaking distances from a speed of 60 mph to a complete stop on dry pavement are normally…

A: From the given information,Let the x be a random variable that represent the breaking distance which…

Q: iron rods are produced in 6 groups. they each are required to tolerate a total length between 166…

A: Given Information: Consider the variable X which follows uniform distribution with parameters…

Q: Please do the f number: The home loan department of BRAC Bank Limited sanction a significant number…

A: Normal distributions are symmetric around their mean. The mean, median, and mode of a normal…

Q: Two samples are given. Find each sample's a) standard deviation and b) coefficient of variation.…

A: Sample  A : 2,6,3,8,9 Sample  B : 8,10,10,3,5,3,7

Q: The probability of a radar station detecting an enemy plane is 0.85. If 4 stations are in use, what…

A: The probability of a radar station detecting an enemy plane is 0.85. If 4 stations are in use, what…

Q: A bottler of drinking water fills plastic bottles with a mean volume of 999 milliliters (mL) and…

A: Given that the distribution is normal.Mean() = 999Standard deviation () = 7

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

A:

Q: sheet metal manufacturer is making 10-gauge eet metal, which is supposed to be 3.416 mm ick. One of…

A: Solution: Given information: n= 100 Sample size  μ=3.416 mm Population mean

Q: Assume the fill amount of bottles of a soft drink is normally distributed with a mean of 2.0 liters…

A: Assume the random variable x defines the fill amount of bottles of a soft drink.

Q: Brenda has collected data to find that the finishing times for cyclists in a race has a normal…

A: Given the finishing time for cyclists in a race has normal distribution with mean 143 minutes and…

Q: teger so it is certainly not normal. a. Let X be the mean number of accidents per week at the…

A: It is given that Mean = 2.2Standard deviation = 1.4

Q: A recent study found that 27% of adults often purchase used items istead of new ones. Assume a…

A: Given information Probability that the adults often purchase used items instead of old ones = 0.27…

Q: The compressive strength of samples of cement can be modeled by a normal distribution with a mean of…

A: Given,   Mean  = 6000 Standard deviation = 100   The objective is to find the probability that the…

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

A: From the given information,Let x be random variable that represents the lengths of pregnancies which…

Q: Assuming a Normal Distribution, find the probability of a product failing: - i) After less than…

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.