Suppose Abby tracks her travel time to work for 60 days and determines that her mean travel time, in minutes, is 35.6. Assume the travel times are normally distributed with a standard deviation of 10.3 min. Determine the travel time x such that 29.46% of the 60 days have a travel time that is at least x. You may find this standard normal distribution table or this list of software manuals useful. Give your answer rounded to two decimal places. x = min

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: Given information Mean µ = 25 pounds Standard deviation σ = 3 pounds Z = -2

Q: A race director is preparing for an upcoming marathon and estimates that the mean time to finish is…

A:

Q: A statistics teacher believes that the final exam grades for her business statistics class have a…

A: Given Normal distribution with  Mean =82   SD =8 We have to answer for mentioned questions

Q: tribution of lifetimes of fluorescent lightbulbs. Calculate the shaded area under the curve. Express…

A: Given: Population mean time  μ=5.6 Population standard deviation  σ=1.50000 Let X ~ N(5.6, 1.50)

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Let X be IQ score  from normal distribution with mean (μ) = 100 and standard deviation (σ) = 15

Q: A set of data has a normal distribution with a mean of 100 and a standard deviation of 15. Find the…

A:

Q: The percent of fat calories that a person consumes each day is normally distributed with a mean of…

A: The mean percent of fat calories that a person consumes each day μ= 35 Standard deviation σ = 10…

Q: Fluorescent lighbulbs have lifetimes that are normally distributed with a mean of 6.1 years and a…

A: Step 1:The lifetime of fluorescent lightbulbs is normally distributed.mean(μ)=6.1 yearstandrad…

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

A:

Q: The velocity of an object can be modeled by an approximately normal distribution with a mean of 70…

A: Let X be the random variable from normal distribution with mean (μ) = 70 and standard deviation (σ)…

Q: The duration of gestation in healthy humans is approximately normally distributed with a mean of 280…

A:

Q: Suppose that resting pulse rates among healthy adults are normally distributed with a mean of 75…

A:

Q: Suppose that the hemoglobin levels among healthy females are normally distributed with a mean of…

A: It is required to find the standard deviation of the distribution of hemoglobin levels in healthy…

Q: Brewed decaffeinated coffee contains some caffeine. We want to estimate the amount of caffeine in 8…

A:

Q: Using the information below, calculate the confidence interval, rounding your limits to 3 decimal…

A: In this scenario the mean difference in monthly mortgage payments to be estimated. The appropriate…

Q: The average number of strawberries that come in a pint is 27.9, with a standard deviation of 7.8.…

A:

Q: Suppose the distributions of arrival and service times were normal instead of exponential.  Let the…

A: The objective of this question is to estimate the long-run average number of people that would be in…

Q: Fluorescent lighbulbs have lifetimes that are normally distributed with a mean of 6.9 years and a…

A: According to the given information, we have Mean = 6.9 Standard deviation = 1

Q: HumanPregnancy Norm STEM Assume that the length of human pregnancies from conception to birth varies…

A: Mean(µ) = 266 Standard deviations (σ) = 16 X ~ N (µ, σ )= N ( 266,16)

Q: The middle 50% of the heights are between what two values? Round to one decimal place.

A: Here Given, Assume that women have heights that are normally distributed with a mean of 63.6 inches…

Q: A race director is preparing for an upcoming marathon and estimates that the mean time to finish is…

A: Here, μ=308 and σ=54

Q:

A: Given that IQ scores of adults is normally distributed with mean 100 and standard deviation 15. The…

Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

A:

Q: Suppose that the speeds of cars travelling on California freeways are normally distributed with a…

A: Given Information: The speeds of cars travelling on California freeways are normally distributed…

Q: The number of cans of soft drinks sold in a machine each week is recorded below. Develop forecasts…

A: Given  Sales of cans of softdrinks for week We have to calculate forcast for week 10 and mean…

Q: Suppose that the hemoglobin levels among healthy females are normally distributed with a mean of 14.…

A: Question: Suppose that the hemoglobin levels among healthy females are normally distributed with a…

Q: One year consumers spent an average of ​$22 on a meal at a resturant. Assume that the amount spent…

A: Determine between the two values will the middle 95% of the amounts of cash spent falls. The between…

Q: Suppose that the speeds of cars travelling on California freeways are normally distributed with a…

A: Given X=80 Mean=63

Q: A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1026 h with a…

A: Given, Mean life span of 1026 h and standard deviation 86 h.

Q: The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?

A:

Q: cars with speeds exceeding 80 miles/hour. The records show that exactly 5% of the speeds exceed this…

A: Let X the random variable such that speeds of cars travelling on California freeways. It is given…

Q: The revenue of a  shop is approximately normally distributed with a mean of $4500 and a 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.