Assume that the speed of automobiles on an expressway during rush hour is normally distributed with a mean of 55 mph and a standard deviation of 6 mph. What percent of cars are traveling faster than 55 mph? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table, O % (Round to two decimal places as needed.)

Q: Given a normal distribution with μ = 100 and o= 10, complete parts (a) through (d). Click here to…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: A vending machine is designed to dispense a mean of 7.6 oz of coffee into an 8-oz cup. If the…

A: Given X is normal Distributed with mean µ = 7.6 and standard deviation σ = 0.2 now will using…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 400 and a…

A: It is given that the mean is 400 and standard deviation is 50.

Q: Suppose that the annual rainfall in Ferndale, California, is known to be normally distributed, with…

A: Given, Mean, μ = 35.5 Standard deviation, σ = 2.5 We have to find the probability that the rainfall…

Q: In a normal distribution, approximately ___ percent of the distribution falls between three standard…

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Q: For a recent 10k run, the finishers are normally distributed with mean 63 minutes and standard…

A: Answer - Given the finishers are normally distributed with mean 63 minutes and standard deviation 14…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 400 and a…

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Q: Assume a normal distribution of mean = 35 and standard deviation of 5. Answer the following…

A: a) μ= 35 σ=5    P ( x  > 38) = 1- p (x ≤ 38)                              = 1 - p[ (x-μ)/σ  ≤…

Q: In a Normal distribution 7% items are under 35 and 89% are under 63. Find its mean and standard…

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Q: The chickens at Colonel Thompson's Ranch have a mean weight of 1850 g with a standard deviation of…

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 400 and a…

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Q: If the weights of 1,000 adult men in a county are plotted on a histogram, which curve is most likely…

A: For large n we use normal approximation.  And normal distribution shape is like bell.

Q: The empirical rule relates the standard deviation of a population to the probability of where a data…

A: The given statement  rule relates the standard deviation of a population to the probability of where…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: Let X be the mathematics score in SAT exam. Therefore: X~Norm(μ=500, σ=100)

Q: The mean score for a test is 87 with a standard deviation of 12.  Assuming a normal distribution for…

A: Given,mean(μ)=87standard deviation(σ)=12

Q: Below is the graph of a normal distribution with mean = standard deviation o = 84 and 2.4

A: Given Information: A graph of a normal distribution with mean μ = 84 and standard deviation σ=2.4 To…

Q: The shape of the distribution of the time required to get an oil change at a 20-minute oil-change…

A: The shape of the distribution of the time required to get an oil change at a 20-minute oil-change…

Q: The heights of 500 students are normally distributed with a mean of 175.5 centimeters and a standard…

A: Givenmean(μ)=175.5standard deviation(σ)=6.5n=500

Q: Click here to view page 2 of the standard normal distribution table. student(s) (Round to the…

A: It is given that  Mean, μ = 117 Standard deviation, σ = 14 Sample size, n = 550 Z-Score, Z = ( X - μ…

Q: Assume the annual day care cost per child is normally distributed with a mean of $7000 and a…

A: Assuming the annual daycare cost per child is normally distributed with a mean of $7000 and a…

Q: Use the standand normal distribution table to determine the percent of data between z= - 1.18 and z=…

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Q: Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean…

A: Given,mean(μ)=250standard deviation(σ)=48sample size(n)=500

Q: In a normal distribution, what percentage of the area under the curve is within three standard…

A: We have given the following statement about normal distribution.

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A: Topic- Probability

Q: given a normal distribution with mean of 40 and standard deviation of 6, find

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Q: For a normal distribution, the mean is equal to the median. True False

A: The Normal distribution is Symmetric distribution. So,  Mean = Median = Mode.

Q: The reading speed of second grade students in a large city is approximately normal, with a mean of…

A: Given: μ=92σ=10

Q: Use your normal distribution sketch above to determine below what weight should there be…

A: Here use normal table for probability  Here in part 2 graph represents the area in bottom is 0.1587

Q: Assume the annual day care cost per child is normally distributed with a mean of $7000 and a…

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Q: Suppose a geyser has a mean time between eruptions of 60 minutes. If the interval of time between…

A: From the given information, μ=60σ=14 c) n=26

Q: For a normal distribution where the mean is 50 and the standard deviation is 10, what percentage of…

A: The random variable X follows normal distribution with mean 50 and standard deviation 10. The…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 400 and a…

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Q: In a normal distribution, find the proportion of the population within three fifths of a standard…

A: We have to find out given proportion..

Q: The mean in a given set of data is 10.00 and the population standard deviation is 2.50. If the data…

A: The kth percentile implies the value, below which k of the total observations lie.

Q: The quartiles of any distribution are the 25th and 75th percentiles. About how many standard…

A: 25th Percentile = P(Z <z ) = 0.25 For normal table  P(Z < -0.67 ) = 0.2514 Hence, 25th…

Q: Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean…

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Q: Given a normal distribution with mean of 67 and assumes a value less than 50 is 0.0034.

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Q: Assume the birth weights at a local hospital have a normal distribution with a mean of 110 oz and a…

A: Let , random variable x follows normal distribution with mean μ and standard deviation σ 1) The…

Q: If a normal distribution has a mean of 60 and a standard deviation of 5, complete the normal…

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Q: Given a normal distribution with mean of 80 and standa assumes a value greater than 76 is 0.3085.

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Q: The normal curve below shows a distribution of heights of players on a baseball team that has a mean…

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Q: A shipment of eggs has a normal distribution with a mean height of 5.21cm and a standard deviation…

A: From the provided information, Mean (µ) = 5.21 cm Standard deviation (σ) = 0.15 cm X~N (5.21, 0.15)…

Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 600 and a…

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Q: Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean…

A: Solution

Q: In a normal distribution, a data value located 0.7 standard deviations below the mean has standard…

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Q: Use the standand normal distribution table to determine the percent of data between z= - 0.92 and z=…

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Q: Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a…

A:

Q: Regardless of the shape of the population, the sampling distribution of the mean approaches a normal…

A: The central limit theorem (CLT) states that the distribution of sample means approximates a normal…

Q: The manager of a paint supply store wants to determine whether the mean amount of paint contained in…

A: Given data isMean(x)=0.995standard deviation(s)=0.009sample size(n)=55α=0.01The null and alternative…