A manufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are more than 4 standard deviations from the mean. The quality-control engineer knows that the bolts coming off the assembly line have mean length of 15 cm with a standard deviation of 0.05 cm. For what lengths will a bolt be destroyed? Select the correct choice below and fil in the answer boxjes) to complete your dchoice. (Round to one decimal place as needed.) OA. A bolt will be destroyed if the length is less than cm. B. A bolt will be destroyed if the length is greater than cm. OC. A bolt will be destroyed if the length is between cm and om OD. A bolt will be destroyed if the length is less than om or greater than

Q: The distribution of the lengths of a commercially caught fish is bell-shaped with mean 24 cm and…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Americans spend an average of 5 hours per day online. If the standard deviation is 33 minutes, find…

A: Given,Mean, μ = 5 hours = 5×60 = 300 minutes.Standard deviation, σ = 33 minutes.We need to find the…

Q: Find the standard deviation of this number set: {2, 4, 9} showing all of the steps involved as shown…

A:

Q: There are five people in a room, ages 10, 10, 15, 20 and 20. If the 15 year old leaves the room, the…

A:

Q: Find the standard deviation of the lengths of the wolves in the entire animal preserve.

A: The mean of the lengths of the wolves in the entire animal preserve is,…

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: The weights in ounces of newborn infants were recorded by a hospital. The weights were 88, 99, 82,…

A: Given data,   88, 99, 82, 81, 84 and 100   First find the sample mean. Mean:

Q: If a population has a mean of 25, what is the mean of the sampling distribution of its mean. Please…

A: Given,population mean(μ)=25

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: On a survey, 8 students reported how many minutes it takes them to travel to school. Here are their…

A:

Q: The weight of football players is normally distributed with a mean of 200 pounds and a standard…

A: Given,mean(μ)=200standard deviation(σ)=25

Q: A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the…

A: Vending machine dispenses coffee into a 12 ounce cupx=12standard deviation()=0.07

Q: A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the…

A: Step 1: Determine what is askedWe need to determine the mean amount of coffee to be dispensed by the…

Q: 1. (12pt) A researcher is studying hospital cleanliness comparing carpeted rooms with uncarpeted…

A: There are two independent samples which are carpeted rooms and uncarpeted rooms. We have to test…

Q: A couple plans to have 14 children. Assume that girl and boy births are equally likely. Find the…

A: A couple plans to have 14 children. Assume that girl and boy births are equally likely.

Q: A vending machine dispenses coffee into a sixteen-ounce cup. The amount of coffee dispensed into the…

A: From the provided information, Ounces of cup (x) = 16 Population standard deviation (σ) = 0.07

Q: efer to the data set of body temperatures in degrees Fahrenheit given in the accompanying table and…

A: Obtain the value of mean.   The value of mean is obtained below as follows:   Use EXCEL Procedure…

Q: the data set has a size 50, how many observations lie within 2 standard deviations of the mean

A: From the provided information, Sample size (n) = 50 The observations lie within 2 standard…

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: Given the data: 47, 55, 57, 63, 73. Find the standard deviation. Round the final answer to the…

A:

Q: Find the range & the standard deviation :  74,70,70,66,68,69,69

A: Given terms are 74,70,70,66,68,69,69

Q: An ABC new report stated that the mean distance that commuters in the United States travel each way…

A: Given : μ = 16 , σ= 8 and n= 75

Q: A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the…

A: Normal Distribution:Normal Distribution:The normal distribution is a continuous probability…

Q: The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the…

A: Solution:  The frequency distribution for the data is  f Midpoint x xf 2 70.5 141 10 92.5 925…

Q: 1. (12pt) A researcher is studying hospital cleanliness comparing carpeted rooms with uncarpeted…

A:

Q: 5. Two different 5th grade classes take the same test. In the first class of 50 students the mean…

A: Given the First class Sample size =50  Mean =70  Second class  Sample size =20  Mean =90 We have to…

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.