Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of 110 minutes and a standard deviation of 15 minutes. What proportion of 1040R tax forms will be completed in at least 136 minutes? Round your answer to at least four decimal places.

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A:

Q: Suppose the mean income of firms in the industry for a year is 100 million dollars with a standard…

A: Given,mean(μ)=100Standard deviation(σ)=15

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Solution-: Let, X= The time required to complete a 1040R tax form Given: We find, P[104R tax form…

Q: Find the standard deviation of the given data rounded to the nearest hundredth. 3, 4, 5, 7, 10, 12,…

A: Given data is3,4,5,7,10,12,15sample size(n)=7

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: From the provided information, Mean (µ) = 144 Standard deviation (σ) = 27 X~N (144, 27)

Q: Suppose a population is known to be normally distributed with a mean, u, equal to 144 and a standard…

A: Let us consider the Population is denoted by X which is known to be normally distributed with a mean…

Q: Suppose the exam average in a class is 82% with a standard deviation of 6. What proportion of…

A:

Q: Suppose a population is known to be normally distributed with a mean, equal to 116 and a standard…

A: Given dataMean = 116Standard deviation = 14Probability that population would be between 88 and 102…

Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 90…

A:

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A:

Q: Suppose a population is known to be normally distributed with a mean, µ, equal to 116 and a standard…

A: We have, Mean μ=116 Standard deviation σ=14 X~N116,14 Now,…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A:

Q: Suppose that the distribution of income in a certain tax bracket is approximately normal with a mean…

A: Probability distribution: A probability distribution function is the statistical function that…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: Obtain the standard z-score for X equals 88. The standard z-score for X equals 88 is obtained below:…

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Z=x - μσ~ N(0,1)

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: From the provided information, Mean (µ) = 100 minutes Standard deviation (σ) = 20 minutes Let X be a…

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Given Data Population Mean,μ = 110 Population Standard Deviation,σ = 20

Q: What proportion of individuals score less than 51   points on this test?

A: given: mean score = 65 standard deviation of the score = 8 we need to find proportion of individuals…

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Given,mean(μ)=100standard deviation(σ)=15

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: It is given that the population of a random variable follows normal distribution with mean 144 and…

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Obtain the standard z-score for the random variable X equals 124. The standard z-score for the…

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: Given information Mean = 144 Standard deviation = 27  between 90 and 171

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Given Data Population Mean,μ = 100.0 Population Standard Deviation,σ = 15.0

Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 90…

A: Given Mean=90 Standard deviations=10

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A:

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: The provided information are:

Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 90…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 90 and…

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: The pdf of normal distribution of a random variable X with mean μ and standard deviation σ is given…

Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 100…

A:

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Given data, Mean(μ)=90sd(σ)=15P(X<91)=?

Q: Suppose you scored 83, 77, 72, and 82 O on your four exams in a mathematics course. Calculate the…

A: The given scores are 83, 77, 72, and 82.We need to find the range and standard deviation of the…

Q: Suppose that the amount of time that takes place for the Bureau of Internal Revenue(BIR) to send…

A:

Q: Suppose that the scores on a reading ability test are normally distributed with a mean of 70 and…

A: From the provided information, Mean (µ) = 70 Standard deviation (σ) = 10 Let X be a random variable…

Q: If the average age of retirement for the entire population in a country is 60 years and the…

A:

Q: If the true mean is 9090 with a standard deviation of 0.0030 within what interval will 95% of the…

A: For standard normal random variable, Mean (µ) =9090 Standard deviation (σ) = 0.0030

Q: Suppose that the scores on a reading ability test are normally distributed with a mean of 70 and a…

A: Let X denote the scores on reading ability test and it follows normal distribution with mean of μ=70…

Q: Suppose that the scores on a reading ability test are normally distributed with a mean of 60 and a…

A: Given that μ=60 and σ=10

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Given : μ=100σ=15X~N(μ=100,σ2=(15)2)We want to find,P(X>128)=?

Q: If you buy one ticket everyday for 365 days, find the mean and standard deviation for the numbers of…

A:

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: From the provided information, Mean (µ) = 100 minutes Standard deviation (σ) = 10 minutes Let X be a…

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: We have to find given proportion...

Q: Suppose that time required to compete a 1040R tax form is normally distributed with a mean of 110…

A: We have to find probability...

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Given values, Calculate the z value

Q: Suppose the mean income of firms in the industry for a year is 85 million dollars with a standard…

A:

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard…

A: From the provided information,

Q: Suppose that the scores on a reading ability test are normally distributed with a mean of 70 and a…

A: mean = 70 standard deviation = 9 x = 85

Q: Suppose a population is known to be normally distributed with a mean, μ, equal to 144 and a standard…

A: Given data A population is normally distributed with mean equal to 144 and standard deviation equal…

Q: Suppose the exam average in a class is 82% with a standard deviation of 6. What proportion of…

A: Here, mean is 82 and standard deviation is 6.

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

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.