Purchase Solution

Distribution of samples

Not what you're looking for?

Ask Custom Question

The Appliance Center has six sales representatives at their North Jacksonville outlet. Listed below is the number of refrigerators sold by each last month.

Sales Representative Number Sold
Zina Craft 54
Woon Junge 50
Ernie DeBrul 52
Jan Niles 48
Molly Camp 50
Rachel Myak 52

a. How many samples of size two are possible?
b. Select all possible samples of size two and compute the mean number sold.
c. Organize the sample means into a frequency distribution.
d. What is the mean of the population? What is the mean of the sample means?
e. What is the shape of the population distribution?
f. What is the shape of the distribution of the sample mean?

Purchase this Solution
Solution Summary

The solution gives the details of distribution of samples. Sample mean, frequency distribution are given with interpretations.

Solution Preview

Please see the attached files.

a. How many samples of size two are possible?
Ans.
No of samples of size two

b. Select all possible samples of size two and compute the mean number sold.
Ans

Sample No Sample No Sold -Samples Mean
1 Craft Zina Junge Woon 54 50 52
2 Craft Zina DeBrul Ernie ...

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

View More Free Quizzes
Related BrainMass Solutions

  • Central Limit Theorem/Sampling Distribution

    From the frequency distribution, select two small samples (sample size of 4) and two large samples (sample size of 40), and compare the means and the standard deviations.

  • Normal Distribution and Populations

    All the populations from which samples are selected must have the same variance. How might one know if the samples follow a normal distribution? Problem: How might one know if the samples follow a normal distribution?

  • distribution of sample mean

    As a part of their testing program Sony tests samples of 9 batteries. (a) What can you say about the shape of the distribution of sample mean?

  • Statistics - Mean - Standard Error

    If samples of size n=16 are selected, can we say anything about the(x-bar)distribution of sample means? and if the original x distribution is normal, can we say anything about the (x-bar) distribution of random samples of size 16?

  • Non-parametric statistics

    We then plot our data and find that the samples appear to come from distributions that are extremely unlikely to follow a normal distribution (a violation of assumption 2 above).

  • Sampling distribution for service providers

    Note that in this exercise the mean of the population is: This solution shows how to find the sampling distribution of samples of size 2 from the given data and how to calculate the mean of the sampling distribution.

  • Central Limit Theorem: Sample Question

    The distribution function of Un converges to standard normal distribution function as n tends to infinity Proof: as n → infinity the pdf of t distribution is given by exp(-1/2 t2) ; -

  • Determining the Sampling Distribution of a Proportion

    Suppose that random samples of 200 households are selected. In what proportion of the samples will between 55% and 60% of the households get the Sunday edition of the newspaper?

  • Normal Distribution, Mean and Standard Deviation

    If the variable is normally distributed, identify the sampling distribution of the sample for samples of 9. b. Can you answer part (a) if the distribution of the variable under consideration is unknown? Explain your answer. c.

View More Related Solutions