probability that the average commute time of 11 random days is less than 39.67 minutes?

Q: Suppose that the walking step lengths of males are normally distributed with a mean of 2.5 feet and…

A: We have to find given probability.

Q: The weights of sheep available for sale for during Eid Qurban is normally distributed with a mean…

A: From the provided information, Population mean (µ) = 45 kgs Population standard deviation (σ) = 5…

Q: Scores for a common standardized college aptitudê test are standard deviation of 97. Randomly…

A: A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of…

Q: Betermine if the finite correction factor should be used. If so, use it in your calculations when…

A: From the provided information, Mean (µ) = $2.874 Standard deviation (σ) = $0.009 X~N (2.874, 0.009)…

Q: carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train.…

A: Given,Mean μ = 69Standard deviation σ = 1.1

Q: There are two machines available for cutting corks intended for use in wine bottles. The first…

A: From the provided information, For first machine; Mean (µ1) = 3 Standard deviation (σ1) = 0.10 For…

Q: Waiting time for all passengers waiting for the arrival for an Amtrak train follows a uniform…

A: Uniform distribution is a continuous probability distribution. This distribution is also called a…

Q: Question1 A Mobile store in Amman is fixing mobiles the average number of the monthly repaired…

A: According to the answering guidelines, we can answer only three subparts of  a question and the rest…

Q: "Ch6. Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…

A: Solution: Let X be the transport time. From the given information, X has mean µ=31 minutes and a…

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

A: Solution: Let X be the transport time. From the given information, X has mean µ=28 minutes and a…

Q: he cost of repairing a smart phone that is out of warranty follows a normal distribution with a mean…

A: given data,normal distribution μ=120σ=8 we haveto findout the z score and probabilities for given…

Q: Study the information provided below and answer questions 10-12. INFORMATION A team of product…

A: 10. Finding for Probability using z-calculator online:Link:…

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: Assume that the time that will be taken to complete this assignment is a random variable with a…

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: Study shows that teenagers spend on average $ 55.5 per month on fast food. with a standard deviation…

A: Solution-: Given: \mu=55.5, \sigma=4.5 We find, (a) P(their monthly spending is between $56.5 and…

Q: A study shows that the normal time that a customer occupied a table in a fine dine restaurant is 1.2…

A:

Q: Suppose the weight of dogs is normally distributed with a mean of 35 pounds and a standard deviation…

A: Given,   Mean = 35 Standard deviation = 5   The objective is to find the probability a dog weighs…

Q: d. 99% of the people in Country A consumed less than how many gallons of soft drinks? gallons of…

A: Given that Mean=M=18.26, Standard deviations=Sd=4

Q: d. What percentage of terminals will last between 2.5 and 4.5 years? e. If the manufacturer…

A: Mean(µ) = 4 yearsStandard deviations (σ) = 10/12 = 0.83 yearX ~ N (µ, σ )= N(4, 0.83)

Q: The cafeteria records that 67% of students buy pizza with a standard deviation of .03 If you took a…

A: Given: p=67% and σ=0.03. Now, if a sample of 100 is taken, then standard deviation of sample will…

Q: 2. A company produces wires with mean resistance 1 ohm and standard deviation 0.03 ohms. A wire is…

A: (i). Here, the necessary assumption is that the resistance of the wire follows a normal…

Q: The Internal Revenue Service reports that the mean federal income tax paid in a recent year was…

A: Let  denote the Internal Revenue Service reports the federal income tax paid in a recent year.The…

Q: The time taken to complete a half‐marathon is normally distributed, with an average time (μ) of 3.05…

A:

Q: According to a study done by UCB students, the height for Martian adult males is normally…

A: From the given information we find the solution for the given problem.

Q: Suppose you sample 2 students from every classroom where a class is being held at Duke University at…

A: Solution The distribution of the population is not given and sample size is not large to apply the…

Q: Suppose that you are considering a hypothesis test for a population mean, µ. In each part, express…

A: a).The test for the given situation is Two-tailed test.Let µ be the population mean.The null and…

Q: On the distant planet Cowabunga, the weights of cows have a normal distribution with a mean of 321…

A: We have given that, The weights of cows have a normal distribution with mean (Mu) = 321 and standard…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: normal distributionμ = 105σ = 20P(93<x<117) = ?

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A:

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: What is the most that a male penguin can weigh to be considered a chick? Given that a male penguin…

A: Given The distribution of weights of male penguin is assumed to be normal with a population…

Q: In a certain state, the daily amounts of industrial waste are normally distributed with a mean of…

A: Let us denote X=the daily amounts of industrial wasteGiven that X is normally distributed with…

Q: b. Let X1, X2, X3, and X4 represent the weight of shipment packages at a certain shipment facility.…

A: X1,X2,X3 and X4 are the independent random variables. The mean of the random variables are μ1=0.8,…

Q: A study shows that the normal time that a customer occupied a table in a fine dine restaurant is 1.2…

A:

Q: A survey was conducted to measure the heights of Filipino men. The heights of the respondents were…

A: Let, X : Survey conducted to measure the heights of Filipino men. Mean=μ=64.2 S.D.=σ=1.7 X~N(μ=64.2,…

Q: The weights of sheep available for sale for during Eid Qurban is normally distributed with a mean…

A: From the provided information, Population mean (µ) = 45 kgs Population standard deviation (σ) = 5…

Q: Vehicle speed on a particular bridge in China can be modeled as normally distributed. USE SALT (a)…

A:

Q: In a recent year, 11th grade New York public school students taking an English test produced test…

A: The mean is 84 and standard deviation is 7.2.

Q: 4. Rochester, NY averages u=22.2 inches of snow for the month of December. The distribution of…

A: 4. The population mean is 22.2, and population standard deviation is 6.5. A local jewelry store…

Q: QUESTION 19 A new electric car has batteries that can power the car for a certain amount of time. Of…

A: Given,mean(μ)=28standard deviation(σ)=10and the cars operation time is normally distributed