he most famous geyser in the world, Old Faithful in Yellowstone National Park, has a mean time between eruptions of 85 minutes. If the interval of time between eruptions is normally distributed with standard deviation 21.25 minutes, answer the following questions: Source: www.unmuseum.org (a) What is the probability that a randomly selected time interval between eruptions is longer than 95 minutes? (b) What is the probability that a random sample of 20 time intervals between eruptions has a mean longer than 95 minutes? (c) What is the probability that a random sample of 30 time intervals between eruptions has a mean longer than 95 minutes? (d) What effect does increasing the sample size have on the (e) What might you conclude if a random sample of 30 time intervals between eruptions has a mean longer than 95 minutes? (f) On a certain day, suppose there are 22 time intervals for Old Faithful. Treating these 22 eruptions as a random sample, the likelihood the mean length of time between eruptions exceeds _____ minutes is 0.20.   What is the answer to solving F? And can you solve it with a TI calculator?

Q: A company has 1,000 employees. The average number of workdays between absence for illness is 87 with…

A: The objective of this question is to find the probability that the sample mean of workdays with no…

Q: A Texas Instrument calculator operating life is normally distributed with a mean of 3,850 hours, and…

A: Given information- Population mean, μ = 3850 hours Population standard deviation, σ = 350 hours…

Q: The speed of cars on a stretch of road is normally distributed with an average 48 miles per hour…

A: GivenMean(μ)=48standard deviation(σ)=5.9

Q: The amount of weight on an ACME tractor trailer is known to have a normal distribution with mean 9.5…

A: GivenMean(μ)=9.5standard deviation(σ)=0.5

Q: The weight of trucks traveling on a particular section of I-475 has a population mean of 15.8 tons…

A: Central limit theorem: The central limit theorem implies that the distribution of the sample means…

Q: When fisshing off the shores of Florida, a spotted seatrout must be between 14 and 30  inches long…

A: Let X be the  lengths of the spotted seatrout that is normally distributed with mean, μ=22 inches…

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: he weights of toilet paper rolls are normally distributed with a mean of 7 ounces and a standard…

A: mu = 7 s = 0.6

Q: Cititon Forest contains a population of 297 chupacabra, whose masses have a mean of 40.1 kg and a…

A: Given that.   X~N( μ , ?^2 )   μ=40.1  , ?=8.3  , n=103   Z-score =( x - μ )/?

Q: Cititon Forest contains a population of 326 chupacabra, whose masses have a mean of 30.2 kg and a…

A: Given that ; N = 326 u = 30.2 kg n = 70 kg ? = 7.4 kg By using standard normal distribution we solve…

Q: The length of an episode of the hit TV show, Fake Blood, is normally distributed with a mean of 62…

A: Given that  X~Normal(μ=62 , ?=4.5) Mean=μ=62 , Standard deviation=?=4.5)

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

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

A: The speed limit on Interstate 81 in Susquehanna County is 70 miles per hour (mph) The mean speed of…

Q: 2. The average gas mileage of an Audi A5 Cabriolet car is 39.5 miles per gallon. If the gas mileages…

A: given information According to given question random variable (x = average gas mileage) follows…

Q: the amount of snowfall falling in a certain mountain range is normally distributed with a mean of 88…

A: It is given that the normal distribution has a mean, μ=88 and the standard deviation, σ=16. The…

Q: Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…

A: Given that, μ=28,σ=5 and n=40 The mean and standard deviation of the sample mean is,

Q: In 2001 there were 869 road fatalities in Virginia, according to the Virginia Department of Motor…

A:

Q: A rugby team from the country of Atlantis is formed by randomly drawing from its population. The…

A: Given that: Population mean, μ=165 Population standard deviation, σ=10 Sample size, n=26

Q: The mean cost of a new Sport Utility Vehicle (SUV) has been found to be $42,500 with a standard…

A:

Q: The amount of weight on an ACME tractor trailer is known to have a normal distribution with mean 9.5…

A:

Q: Men have sitting heights that are normally distributed with a mean of 36.0 inches and a standard…

A: Mean = 36.0 Standard deviation = 1.4

Q: A chemical engineer processes 20 pilot batches and has the following active ingredient yield…

A: The probability of getting at least 50.5 grams per litre if the true mean yield is 52 grams per…

Q: According to the U.S. Department of Agriculture, the amount of soft drinks consumed by people in the…

A: Given, Mean = 53 Standard deviation = 17.1   Sample size = 25   The objective to is find the…

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

A:

Q: A ferry will safely accommodate 86 tons of passenger cars. Assume that the mean weight of a…

A: Given: μ = 2.1 σ = 0.6 n = 38.

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: In a dorm, the weights of the students are normally distributed with mean 175 lbs and standard…

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.