The time requires to assemble a bidet you bought due to a toilet paper shortage is normally distributed with mean μ = 12.9 minutes and standard deviation σ = 2.0 minutes. What is the probability that it will take you longer than 15 minutes to assemble the bidet?

Q: Replacement times for TV sets are normally distributed with a mean of 8.2 years and a standard…

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Q: A fair die is rolled seven times. Calculate the probability of obtaining exactly two 3s.

A: here given ,  fair die is rolled 7 times  n=  7 here for fair die , possible Outcomes 1,2,3,4,5,6…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Given data,μ=180000σ=39000

Q: A manufacturer produces widgets that are packaged in boxes of 100. The probability of a widget being…

A: A manufacturer produces widgets that are packaged in boxes of 100. The probability of a widget being…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

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Q: Number of weekly grocery deliveries requested at Wal-Mart is a normal random variable with mean m =…

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Q: A certain type store battery average of 3years with a standard deviations of 0.5years.Assuming the…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Medical researchers have developed a new artificial heart constructed primarily of titanium and…

A: Given Information: Sample size n=50 Sample mean x¯=4.05 Population standard deviation σ=0.2…

Q: Wild deer population weight has standard deviation of 50 lb. What is the probability of existence of…

A: Wild deer population weight has standard deviation of 50 lb.  Sample size, n = 100 x¯-μ=±5

Q: y salaries of college students in a large city are normally distributed with a mean of 990 dollars…

A: Given: μ=990, σ=45 The corresponding z score is calculated as:

Q: Scores on a history test have average of 80 with standard deviation of 5. What is the probability…

A: Answer: Given that   ‘x’ is Normally distributed with                 Mean  µ =80       standard…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Let X denote the annual salary for graduates 10 years after graduation and it follows normal…

Q: Number of weekly grocery deliveries requested at Wal-Mart is a normal random variable with mean m =…

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Q: The processing time for the robogate has a normal distribution with mean 21 sec and standard…

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Q: A random variable is normally distributed with a mean of μ = 50 and a standard deviation of σ = 5.…

A: Given Mean(μ)=50standard deviation(σ)=5

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

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Q: Spray drift is a constant for pesticide applications and agricultural producers. Suppose that the…

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Q: X is the Binomial Random Variable which counts the number of students who passed an exam. If the…

A: Given n=81 P=0.85

Q: Find the probability that a single randomly selected salary is at least 163000 dollars. P(X >…

A: Given, n=53 μ=168000 σ=41000

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Let X denote the annual salary for graduates 10 years after graduation and it follows normal…

Q: You work at the Quality Department of a photocopier manufacturer. After each over- haul, the time…

A: Introduction: Denote X as the amount of time in years between two consecutive overhauls. It is given…

Q: Porosity measurements in several oil fields show a normal distribution with a mean of 5% and a…

A: Given that the mean of the distribution is = 5% and standard deviation=1%  So the sample mean= 5%…

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

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Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

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Q: The life of a certain company's CD players is normally distributed with a mean of 4.1 years and a…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=100and a standard…

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

Q: The acidity of human blood, measured on a pH scale, is a normal random variable with a mean of 6.7…

A: Let us define  the random variable X as the acidity of human blood measured on a pH scale normally…

Q: The scores on a certain test are normally distributed with a mean score of 65 and a standard…

A: The random variable score follows normal distribution. The population mean is 65. The population…

Q: Assume that adults have IQ scores that are normally distributed with mean of mu = 100 and a standard…

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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.