Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an average (mean) of 32 grams of fat per pound, with a standard deviation of 8 grams of fat per pound. A random sample of 40 farm-raised trout is selected. The mean fat content for the sample is 30.2 grams per pound. Find the probability of observing a sample mean of 30.2 grams of fat per pound or less in a random sample of 40 farm-raised trout. Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.

A particular fruit's weights are normally distributed, with a mean of 464 grams and a standard deviation of 19 grams.The heaviest 18% of fruits weigh more than how many grams?

Esp Seventy million pounds of trout are grown in the U.S. every year. Farm-raised trout contain an average of 32 grams of fat per pound, with a standard deviation of 7.5 grams of fat per pound. A random sample of 36 farm-raised trout is selected. The mean fat content for the sample is 30.5 grams per pound. Find the probability of observing a sample mean of 30.5 grams of fat per pound or less in a random sample of 36 farm-raised trout. Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.

A simple random sample of 144 observations was taken from a large population. The sample mean and the standard deviation were determined to be 120.8 and 32.46 respectively. The standard error of the mean is   a. 3.7215   b. 10.0667   c. 0.8389   d. 0.2254   e. 2.7050

A particular fruit’s weights are normally distributed, with a mean of 712 grams and a standard deviation of 28 grams. The heaviest 18% of fruits weigh more than how many grams?

A recent survey found that 61% of all adults over the age of fifty wear glasses for driving. In a random sample of 80 adults over the age of fifty, use the binomial distribution to determine what is the mean and standard deviation of those that wear glasses. Select one: a.mean: 31.2; standard deviation: 4.36 b.mean: 31.2; standard deviation: 6.99 c.mean: 48.8; standard deviation: 4.36 d.mean: 48.8; standard deviation: 6.99

suppose the walking step lengths of an adult males are normally distributed with a mean of 2.7 feet and a standard deviation of 0.3 feet. A sample of 70 mens step is taken. Find the probability that a mans step length is 2.4 feet

During a wisdom teeth removal procedure, 1, 2, 3, or 4 wisdom teeth are removed, depending on the patient's needs. Records indicate that nationwide, the mean number of wisdom teeth removed in a procedure is µ = 2.38, with a standard deviation of o = 0.93. Suppose that we will take a random sample of 8 wisdom teeth removal procedures and record the number of wisdom teeth removed in each procedure. Let x represent the sample mean of the 8 procedures. Consider the sampling distribution of the sample mean x. Complete the following. Do not round any intermediate computations. Write your answers with two decimal places, rounding if needed. (a) Find - (the mean of the sampling distribution of the sample mean). -0 ? (b) Find o, (the standard deviation of the sampling distribution of the sample mean). G- - ?

Find the mean variance and standard deviation for the number of heads when 10 coins are tossed.

A manufacturing process produces packages of walnuts. The package weights follow a normal distribution with a mean of 9.2 oz and a standard deviation of 2.5 oz. How many packages should be randomly selected so that the standard error is equal to 0.1 oz? packages.