If the claim by Get-A-Grip is true, what is the probability of getting a tire with a lifetime of less than 20,000 miles? b) If the claim by Get-A-Grip is true, what is the probability of getting a tire with a lifetime of more than 26,000 miles?

Q: According to the Opinion Research Corporation, men spend an average of 12.9 min in the shower.…

A: Given that  X~Normal(μ=12.9,σ=1.65)

Q: investigating how much time his classmates spend on social media per day, Ruben found that for  the…

A:

Q: As reported by the US National Center for Health Statistics, the mean serum high-density-lipoprotein…

A:

Q: Suppoe that a catagory of work class runners are known to run a marathon in an average of 141…

A: We havevto find the probability that the average of the sample will be between 140 and 143 minutes…

Q: A worldwide organization of academics claims that the mean IQ score of its members is 115, with a…

A: mean IQ score of its members is 115 standard deviation of  16 A randomly selected group of 35…

Q: An expert witness for a paternity lawsuit testifies that the length of a pregnancy is normally…

A: Given: Mean µ =280 standard deviation σ = 13

Q: There are 350 dogs at a dog show, who weigh an average of 15 pounds with a standard deviation of 7…

A: Given,sample size(n)=40mean(μ)=15standard deviation(σ)=7

Q: The average salary of bank managers in a certain city is $85,600 pesos per hour with a standard…

A:

Q: According to an almanac, 60% of adult smokers started smoking before turning 18 years old. (a)…

A: Given that, probability, p= 60% = 0.60 And sample size is n= 100 Hence X~ binomial (100,0.60)

Q: According to the Department of Education, college students spend an average of 270 minutes per day…

A: The probability that students spent less than 230 minutes on their phone that day is obtained below:…

Q: According to the Nielsen Company the mean number of TV sets in a US household in 2013 was 2.24.…

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 average length of actual running time (excluding advertisements) for television feature films is…

A:

Q: The average age of all employees is 25 years, and the standard deviation of the ages of all…

A: Given,sample size(n)=100mean(μ)=25standard deviation(σ)=3

Q: In the university libtaty elevator there is a sign indicating a 16 person limit as well as a weight…

A: Let X be the random variable from normal distribution with mean weight (μ) = 150 pounds, standard…

Q: 3 inches.  If a random sample of 45 men in this age group is selected, what is the probability that…

A: Given :  The heights of 18-year-old men are normally distributed, with a mean of 68 inches and a…

Q: road averages 2,115 vehicles per day with a standard deviation of 485 vehicles per day. A traffic…

A:

Q: If the average commute to work (one way) is 30 minutes, assuming commuting times are normally…

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Q: The number of driving miles before a certain kind of tire begins to show wear is on the average of…

A:

Q: Suppose the horses in a large stable have a mean weight of 1354 lbs and a standard deviation of 98.…

A:

Q: Researchers found that boys playing high school football recorded an average of 355 hits to the head…

A: Given Mean=355 Standard deviations=80

Q: ) If an artic char is chosen at random, what is the probability that it is longer than 140 cm? b)…

A: Given: mean = 127cm     standard deviation = 16cm  let x be the length of artic char to find: i) If…

Q: It was found that 80% of seniors at a particular college had accepted a job offer before graduation.…

A: (As per bartleby guidelines, for questions containing multiple subparts, only first three parts will…

Q: Traveling between two campuses via shuttle bus takes, on average, 28 minutes with a standard…

A:

Q: s that their items have a normally distributed lifespan, with a mean of 13.2 years, and standard…

A: The sampling distribution of the mean life of the sample will also follow normal distribution.  The…

Q: The producer of a weight-loss pill advertises that people who use the pill lose, after one week, an…

A: Given values, μ=1.75σ=1.02x¯=1.68n=60

Q: The mean number of hours that American women who worked outside of the home per week was 34.6 hours…

A: The mean is 34.6 and standard deviation is 13.6. The sample size is 42. The probability their mean…

Q: Suppose that scores on an exam are normally distributed with mean 80 and standard deviation 5, and…

A: Solution. Given score follow normal distribution. Mean = 80  Score= 5

Q: re than 52 hours? the sample average is less than 47

A: The mean of the number of hours of TV viewing per household per week in the Philippines is, μ= 50.4…

Q: It has been reported that the average hotel check-in time at the Protea Hotel, from curbside to…

A: GivenMean(μ)=12standard deviation(σ)=2

Q: A Nielsen Company report states that the mean number of TV sets in a U.S. household is 2.24. Assume…

A: Obtain the probability that the number of TV sets is greater than 2 in that household. The…

Q: The average commute to work (one wav) is 25 minutes accordina to the 2005 American Community Survey.…

A:

Q: There is an 85% chance that a randomly selected person will take their own re-usable bags to the…

A:

Q: The weight of people in a small town in Missouri is known to be normally distributed with a mean of…

A: Mean = 180 Standard deviation = 28 Sample size, n = 40

Q: For healthy individuals, between 18 and 48, the mean heart rate is 60 beats per minute (bpm) with a…

A: Calculating the probability: The heart rates have a mean 60 and standard deviation 10. Let X denotes…

Q: 8) Students who have completed a speedreading course have reading speeds that are normally…

A: Given,mean(μ)=950standard deviation(σ)=220

Q: Assume that the square footage of a residential house in the US is normally distributed with a…

A: According to the given information in this question  We need to find the probability that it will be…

Q: The Aluminum Association reports that the average American uses 56.8 pounds of aluminum in a year. A…

A:

Q: Suppose that it is known that 10 percent of a certain population is color blind. If a random sample…

A:

Q: As reported in Runner's World Magazine, the times of finishers in the New York City 10-km run are…

A: Let "X" be the time of finishers in the New York City 10-km run.

Q: The New York Times reported that 17.2 million new cars and light trucks were sold in the United…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: There are 250 dogs at a dog show that weigh an average of 12 pounds, witha standard deviation of 8…

A: Note: As per bartleby guidelines for more than one question asked, only one question is to be…

Q: average cost of care for an infant in a​ child-care center in a particular state was $7,892 per…

A:

Q: A soft drink vending machine is set to dispense an average of 200 milliliters per cup. If the amount…

A: a) Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Suppose the average speeds of passenger trains traveling from Colombo to Jaffna  are normally…

A: Given,       Mean μ=88       Standard deviationσ=6.4   1) Required probability is Px<70…

Q: The average length of a rapier, which is a fencing sword, is 92 cm with a standard deviation of 5.9…

A: Solution-: Given: μ=92cm,σ=5.9cm,n=58 We find, P[average length of a rapier is less than 90 cm]=?

Q: According to a special issue of Beverage Digest, the US per capita consumption of soft drinks in…

A: Given,   Mean = 42.2 Standard deviation = 13   The objective is to find the required probabilities.…

Q: According to a report from a business intelligence​ company, smartphone owners are using an average…

A: Given that   μ = 22σ= 7n =144we need to calculateP (21.5 < X < 22.5)

Q: It is reported that American adolescents spend an average of μ =4 hours per day using smart phone (σ…

A: According to the provided information, μ =4 σ = 2

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.