Finding measures of variation

Assignment Help Basic Statistics
Reference no: EM13109867

Find the

a. explained variation

b. unexplained variation

c. total variation

d. coefficient of determination and

e. standard error of estimate.

The Consumer Price Index (CPI) and the cost of a slice of pizza

CPI 30.2 48.3 112.3 162.2 191.9 197.8

Cost of pizza 0.15 0.35 1.00 1.35 1.50 2.00

Reference no: EM13109867

Questions Cloud

What might be some reasons that english puritans : What might be some reasons that English Puritans and French Huguenots and Jansenists were so prominent int he advancement of seventeenth-century science?
Hypothesis testing of mean-actual-ideal weights : In a study, results were presented for a sample of 63 men who were asked to report their actual weight and their ideal weight. The mean difference between actual and ideal weight was 2.48 pounds
Evaluate the impact to the us manufacturing industry : The regime in China has been known to manipulate it currency creating a competitive a world competitive advantage for the manufacturing of goods.
Example-single population proportion : Cite an example of how you could/would apply a test of a hypothesis for a single population proportion, two tail test described in the lecture to real world situations?
Finding measures of variation : The Consumer Price Index (CPI) and the cost of a slice of pizza
What constraints added to two resulting lp problems : A company will be able to obtain a quantity discount on component parts for its three products, X1, X2 and X3 if it produces beyond certain limits.
Explain independent sample and related sample : What is meant by an independent sample? What is a related sample? When should researchers use different hypothesis tests for independent and related samples?
Hypothesis testing-p-value-confidence level : A random sample of 16 students selected from the student body of a large university had an average age of 25 years and a standard deviation of 2 years.
Determine is drug effective at given alpha value : A statistical study reported that the drug was effective with the p-value of .042. Is this true? The effective sample may be found about 42 times in 1000 samples.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Standard deviation-bell shaped distribution

Assume the data have bell shaped distribution with a mean of 30 and a standard deviation of 5. Employ the empirical rule to determine the percentage of data within each of the following ranges: 20 to 40, 15 to 45, and 25 to 35.

  Favoring stronger gun-control law

Among 620 adults selected randomly from among the residents of one town, 18.9% said that they favor stronger gun-control laws.

  Probability distribution finite the mean-standard deviation

From the given probability distribution finite the mean and standard deviation.

  Possible outcomes of the experiment

A quality control inspector selects a part to be tested. The part is then declared acceptable, repairable, or scrapped. Then another part is tested. List the possible outcomes of this experiment regarding two parts.

  Analysis of variance

Explain the logic of what you have done to a person who is unfamiliar with the analysis of variance.

  Determine the standard error of the proportion

1) There are 500 employees in a firm, 45% are female. A sample of 60 employees is selected randomly. a) Determine the standard error of the proportion.

  Moving average calculation

University officials at a major university would like to use three -term moving averages to examine enrollment. Enrollment data (in thousands of students) for the 12 most recent terms are shown in middle column of the table below.

  Probability an applicant does not pass the test

What is the probability an applicant does not pass the test and is a sucessful manager?

  Discuss validity of central limit theorem

Critically discuss the Central Limit Theorem? How large should the sample size be if the underlying distribution of the population values are:

  Moment generating function

Let x be N(µ,σ2 ) and consider the transformation x=log(y) or equivalently y=exp(x). Find the mean and the variance of y by first determining E(exp(x)) and E[(exp(x)^2 ], by using the moment generating function of x.

  Probability of completing the exam

The time required to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. Answer the following questions. a) What is the probability of completing the..

  Determining confidence level-precise estimate is requested

95% confidence interval evaluate for proportion of Americans who believe Abraham Lincoln is United States' most outstanding President is 65% to 75%. If more precise estimate is requested, then confidence level.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd