In october 2012, apple introduced a much smaller variant of the apple ipad, known as the ipad mini. weighing less than 11 ounces, it was about 50% lighter than the standard ipad. battery tests for the ipad mini showed a mean life of 10.25 hours (the wall street journal, october 31, 2012). assume that battery life of the ipad mini is uniformly distributed between 8.5 and 12 hours. b. What is the probability that the battery life for an iPad Mini will be 10 hours or less (without using calculus

Q: A 2012 Nissan Altima has a mean gas mileage of 27 miles per gallon (mpg) with standard deviation 4…

A: Given that: X is normally Distributed with mean µ = 27.0 and standard deviation σ = 4.0 By using…

Q: study of the amount of time it takes a mechanic to rebuild a car's transmission shows that the mean…

A: Mean=M=8.4, Standard deviation=S=1.8

Q: A study by Hershey's indicated that Americans consumed an average of 12.4 pounds of chocolate per…

A: Given that  X~N( μ = 12.4 , ? = 3.9) μ = 12.4 , ? = 3.9 Z-score =( x - μ )/?

Q: en the current Center of Disease Analytics statistics, the probability of having the flu in our area…

A: event A= having flup(having the flu in our area)=0.10p(A)=0.10P(A')=1-0.10=0.90event B=report…

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: what can be said about the probability of committing a Type II error?

A:

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

A: GivenMean(μ)=1.8standard deviation(σ)=0.95sample size(n)=50

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

A: We want to find the probability of sample mean is 1.77 or more  P(x̄≥1.77)

Q: A sample of n=30 college sophomores was drawn to assess the number of times per day they open some…

A: Obtain the Z-score for the random variable M equals 40 The Z-score for the random variable M equals…

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A: Mean()=80000standard deviation()=12000 one store manager made a bet with another store manager that…

Q: A small jet can carry up to 43 passengers and 3 crew members. There is a weight restriction of 9200…

A:

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

A:

Q: A courier company that operates in the Tijuana metropolitan area takes an average of 36 minutes to…

A: Answer: From the given data, Let X denotes delivery time of a courier company that operates in the…

Q: The average time it takes a music producer to complete a recording of a pop song is 53.4 minutes.…

A: Let X be the random variable from normal distribution with mean (μ) = 53.4, variance (σ2) = 49 the…

Q: The life of light bulbs is distributed normally. The variance of the lifetime is 625 and the mean…

A: Given information- Population mean, µ = 570 hours Population variance, σ2 = 625 So, Population…

Q: The estimated annual probability that a woman over the age of 32 dies of lung cancer equals 0.001204…

A:

Q: The level of nitrogen oxides (NOX) and nonmethane organic gas (NMOG) in the exhaust over the useful…

A: Mean == 80Standard deviation  = 6n = 16s = 6/√16 = 1.5Levels of significance = 1 - 0.05 = 0.95 or…

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

A: We have to find out given probability..

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

A:

Q: The speed limit on Interstate 81 in Susquehanna County is 70 miles per hour (mph). On a clear day…

A: Solution-: Given: μ=77.9mph,σ=8.2mph We find, P(a randomly selected car is going over 85 mph)=?

Q: The life of light bulbs is distributed normally. The variance of the lifetime is 225and the mean…

A: The probability of a bulb lasting for at most 540 hours is calculated below:

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

A: To find: what is the probability that the mean weight loss after one week on this pill for a random…

Q: IUSS pill advertises that people who use the pill lose, after one week, an average (mean) of 1.8…

A: We have given that  X~N( μ , ?^2 )   Z-score =( x - μ )/?

Q: he level of nitrogen oxides (NOX) and nonmethane organic gas (NMOG) in the exhaust over the useful…

A: Given Data: Mean (μ)=85 Standard deviation (σ)=6 Variance (σ2)=36 Sample size(n)=16   Let X be the…

Q: A major application of analytics in marketing is determining customer retention. Suppose that the…

A: Given, The customer leaving for another carrier from one month to the next is 0.07We have to find…

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

A:

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

A:

Q: use a ti84 device to solve The quality control manager at a computer manufacturing company believes…

A: From given data we have : Population mean is μ=97 Population standard deviation  (variance…

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

A: Given that mean =1.85,s.d =1.02,n=55,x bar =1.88

Q: A researcher measured how far 100 students from York (mean = 30 kilometers, SD = 5.2 kilometers) and…

A:

Q: The life expectancy of a particular brand of tire is normally distributed with a mean of 60,000 and…

A:

Q: A government sample survey plans to measure the total cholesterol level of an SRS of men aged 20-34.…

A: Note: As it is not logical that “the probability that x falls within + or -2 milligrams per…

Q: An electrical firm manufactures light bulbs that have a length of life that is normally distributed…

A:

Q: A Soft drink machine outputs a mean of 25 ounces per elip. The machines output is normally, With a…

A: Given that: Population mean, μ=25 Population standard deviation, σ=4

Q: A 2006 Toyota Echo has a mean gas mileage of 32 miles per gallon (mpg) with a standard deviation 5…

A: Given that: X is normally Distributed with mean µ = 32.0 and standard deviation σ = 5.0 By using…

Q: daily revenue of a computer repair shop is known to be normally distributed with a mean of $7129 and…

A: Given,Mean, μ = 7129Standard deviation, σ = 1139Sample size, n = 35Let X be a random variable…

Q: The lifespan of EEL light bulbs is a random variable obeying a normal law. Lifetime average of these…

A: The lifespan of EEL light bulbs is a random variable obeying a normal law. The lifetimeaverage of…

Q: If you conduct 14 different statistical tests with alpha = 0.05, what is the probability you will…

A: Given that the researcher conducts 14 different statistical tests, each with an alpha is 0.05. That…

Q: On Mary’s FACEBOOK page, there is a 42% chance that one of her friends will write on her wall. If…

A: Given : p = 0.42 n = 2400