A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean le of 29,000 miles and a standard deviation of 2200 miles He wants to give a quarantee for free replacement of tires that don't wear well How should he word his guarantee if he is willing to replace approximately 10% of the tires? Cick hern to.vie. page 1of the standard.nomal disteitation table Click here to view.pege 2 of theatandard nomal distribution table. Tires that wear out by miles wil be replaced tree of charge (Round to the nearest mile as needed)

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: The number of goals scored by a college soccer team for a given season are 4, 9, 0, 1, 3, 12, 3, 7,…

A: The population mean is, μ=∑xN=4+9+0+1+3+12+3+7+4+5+8+212=5812=4.8333 The population mean is 4.8333.

Q: The figure below illustrating chemical process concentration readings made every hour. The minimum…

A: Explanation:   From the time-series plot, it is clear that there is no specific pattern in the…

Q: Monthly food expenditures for families in Caloocan City average ₱4,250 with a standard deviation of…

A:

Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

A:

Q: Which of the following are signs of special cause variation? a. Spike in Data b. Inaccuracy in data…

A: Special Cause Variation, refers to unexpected glitches that affect a process. These are sporadic…

Q: he cost of laptops is normally distributed with a mean of $750 and a standard deviation of $60. What…

A: GivenMean(μ)=750standard deviation(σ)=60

Q: Refer to the information in the below chart. Find the mean and standard deviation of the total…

A: The mean involves all the observation in the sample or population, it is calculated by adding all…

Q: The mean rate for cable t.v.from a sample of 80 households was $29 per month with a standard…

A:

Q: Americans love ice cream .The annual per capita consumption of ice cream ,in pounds ,in the united…

A: It is given that the mean is 16.5 lbs and standard deviation is 2.5 lbs.

Q: A quantitative data set has size 40. At least how many observations lie within two standard…

A: Introduction: Suppose X is a random variable with expectation, μ and standard deviation, σ. Then,…

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

A: Percentile:The percentile is the proportion of data lying below a certain value. For example, 56…

Q: Assume that human body temperatures are normally distributed with a mean of 98.06°F and a standard…

A: Given: Mean μ=98.06 Standard deviation σ=0.86 The above 5% people are to exceed the required…

Q: Two different species of trees have heights that are approximately normal in distribution. Tree A…

A: Given that Tree A has a mean of 36 feet and a standard deviation of 3 feet.   Tree B has a mean of…

Q: ​(a) Determine the standard deviation of recumbent length for all 20 observations.   nothing cm…

A: The mean is,…

Q: A. The average age of bank managers is 40 years. Assume that the variable is normally distributed.…

A: For A given that, the average age of bank manger is 40 years. And the age of bank manager is…

Q: Tires that wear out bynothing miles will be replaced free of charge.

A: Solution:

Q: onsider this data set { 9, 3, 8, 8, 9, 8, 9, 18}. Find the standard deviation, s. Round off your…

A: given data, 9,3,8,8,9,8,9,18we have to find out the standard deviation(s) for the given data. x…

Q: 9. Weights of walleye in a lake are normally distributed with mean 4.8 pounds and a standard…

A: A z-score represents the position of a data point in terms of its distance from the mean when…

Q: Consider a test of coordination that has a normal distribution, a mean of 50, and a standard…

A: given data   normal distribution   μ = 50σ = 5

Q: We have provided simple data sets for you to practice the basics of finding a a. population mean. b.…

A:

Q: The mean height of a population of men is 70.8 inches and the standard deviation is 3.2 inches. What…

A:

Q: Find the standard deviation for the following data set. ​2, 2,​ 2, 5,​ 5, 6,​ 6, 8,​ 8, 9   A. 2.49…

A:

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

A: Given  Population mean μ=98.6, standard deviations σ=0.27, P(X<a)=0.95 Find a

Q: In order to determine the average weight of carry-on luggage by passengers in airplanes, a sample of…

A: 1.   From the given information, the sample size is 250.  The population standard deviation is 2.5.…

Q: Discuss the difference between mean and mean deviation. Give an example of each of them.

A: From the given information we find the solution.

Q: A police radar gun is used to measure the speed of cars on a highway. The speeds of cars are…

A: According to empirical rule also known as 68-95-99.7 rule.

Q: A person in the U.S. eats about 25 pounds of M&M's per year with a standard deviation of 3 pounds.…

A: Assume that a person in the U.S. eats of M&M's per year follow normal distribution. μ=25σ=3 Let…

Q: a quantitative data set has mean 25 and standard deviation 5. what percentage of the observations…

A: The z-score of a random variable X is defined as follows: z = (X – µ)/σ. Here, µ and σ are the mean…

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: The data on highway mileage (mpg) for a sample of 8 different models of car company is given…

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.