13. The quality assurance department for Pepsi Distributors, Inc. maintains meticulous records on the bottling line for two-liter Pepsi bottles. Records indicate that the process follows the normal probability distribution with a mean amount per bottle of 2.01 liters and a standard deviation of 0.025 liters. The foreman randomly selects 25 bottles from the bottling line and determines that the mean amount per bottle is 2.005 liters.
a. Compute the sampling error.
b. Compute the standard error of the sampling distribution of sample means.
c. Compute the probability that the sample of 25 bottles would have a mean of 2.005 liters or more.

14. Suppose the foreman in Problem 13 selects a second sample of 16 bottles and determines that the mean is 1.994 liters. Compute the probability that the sample of 16 bottles would have a mean of 1.994 liters or more.

1. Find the mean of the sampling distribution of the sample size n = 36 if the population mean is 4 and the standard deviation is 3.
Choose one answer.
A. 4
B. 2
C. 1
2. Find the standard error of the sampling distribution of the sample size n = 36 if the population's mean is 4 and the standard deviation

A sample of size n is selected at random from an infinite population. As n increases, which of the following statements are true?
A) The population standard deviation decreases
B) The standard error of the sample mean decreases
C) The population standard deviation increases
D) The standard

6.1
Consider the following data to be a population of N=20 values
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5 3 2 6 6 7 3 3 6 7
7 9 7 5 3 12 6 10 7 2
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Question: Hockey-r-us" a store specializing in sales of hockey equipment, wants to find out the average age of all it's customers. A random sample 25 customers reveals an average age of 38 years, with a standard deviation of six years.
How large of a sample should be constructed to be 90% confident that the samplingerror is o

1.Which of the following statements about the sampling distribution of the sample mean is incorrect?
a. The sampling distribution of the sample mean is approximately normal whenever the sample size is sufficiently large (n>30).
b. The sampling distribution of the sample mean is generated by repeatedly taking samples of size n

Discuss the difference between random samplingand stratified random sampling.
When is it most appropriate to use stratified random sampling techniques?

View the "Sampling Distribution of the Mean" within a Multimedia Presentation.
InteliBoard Assessment
1. The mean of the sampling distribution is equal to
a. the population standard deviation
b. the sample mean
c. the sample standard deviation
d. the population mean
e. none of the above
2. The standard error of t

Total pieces was 57
Color Sample M & M Count Website Count (%) SamplingError +/-
Blue 23.2% 24% .8%
Red 10.7% 13% 2.3%
Yellow 12.5% 14% 1.5%
Orange 17.9% 20% 2.1%
Green 17.9% 16%

9 A computer simulation can itself be regarded as a sampling process. Suppose that a simulation study is done concerning the time required to complete a research and development project. There is considerable uncertainty in the times required to complete the various pieces of the project, so the overall completion time has co

Assume the following data represents a population of 50 values. Values equal to 1 indicate that a particular attribute is present, a value equal to 0 indicates the attribute is not present.
1......1......1......1......1......1......1......1......0......0
0......1......1......0......0......1......1......1......0......1
0......