Rods are taken from a bin in which the mean diameter is 8.30 mm and the standard deviation is 0.40 mm. Bearings are taken from another bin in which the mean diameter is 9.70 mm and the standard deviation is 0.35 mm. A rod and a bearing are both chosen at random. Assume that both diameters are normally distributed.

Q: ssume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1.157…

A: Given that μ=1.157 & σ=0.532

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A:

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Q: Let X = { 1,2,6,9,11}. Find the mean and standard deviation given that X is a sample. %3!

A: The mean for the sample is calculated as follows:

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A: Note: " Since you have posted many sub-parts. we will solve the first three sub-parts for you. To…

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A: μ=190 lbσ=44 lbn=25The maximum road limit = 3500 lb

Q: Find the p-value. p= (Round to three decimal places as needed.)

A: The test statistic is, t=x¯-μsn=52.5-53.62.615=-1.6386≈-1.64 The test statistic is -1.6386. The…

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A: Let X: Age of student. X~N(μ=22.2, σ=4.7)

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A:

Q: Thermometers used at the Tongas National Park in Alaska are supposed to give readings of 0° C at the…

A: Given that, μ=0σ=1 By using the standard normal table, P(Z>z) = 2%  1-P(Z<z) = 0.02P(Z<z) =…

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard…

A:

Q: he average age of vehicles registered in the United 96 months. Assume the population is normally…

A: Given: μ=96, σ=15, n=36 Calculate the corresponding  z scores as:

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A: Let X be the readings on the thermometers which follows normal distribution with mean 0 degrees and…

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A: Suppose a random variable X, defines the reading on thermometers.

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given that μ=0σ=1.00