Finding evidence for the boast of dealership

Assignment Help Basic Statistics

Reference no: EM1392309

There are two car dealerships in a particular area. The mean monthly sales at the two dealerships are about the same. However, one of the dealerships (dealership A) is boasting to corporate headquarters that his dealership's monthly sales are more consistent. An industry analyst reviews the last seven months at dealership A and finds the standard deviation of the seven monthly sales to be 14.79. He reviews the last eight months at dealership B and finds the standard deviation of the eight monthly sales to be 22.95. Using the .01 significance level does the analyst find evidence that the boast of dealership A is correct?

Reference no: EM1392309

Questions Cloud

Value of upper limit of confidence interval : Use this information to develop a 95% confidence interval to estimate the production variance for the hourly wages of production workers in U.S. What is the value of upper limit of this confidence interval?

Discussion on invading pathogens : While many microbes give a service to us, many are extremely dangerous. Thus far, we have reviewed many different microbes that produce a variety of diseases in body.

How to forecast criminal organizations dealing in marijuana : How do you forecast that criminal organizations dealing in marijuana and other drugs would react and or change?

Normal distribution of sheet metal stamping machine : For the sheet-metal stamping machine in certain factory, the time between failures, X1 has a mean between the failures, of 56 hours and a variance of 16 hours.

Finding evidence for the boast of dealership : He reviews the last eight months at dealership B and finds the standard deviation of the eight monthly sales to be 22.95. Using the .01 significance level does the analyst find evidence that the boast of dealership A is correct?

Find number of nuclear chromosomes per cell : A somatic cell of a given plant species contains threebillion base pairs of nuclear DNA and 12 functional centromeres when observed at the conclusion of stage G2 of the cell cycle.

Explain speed-power to organize crime by globalization : Explain the speed, power, and ease brought to organized crime by globalization of markets and communication.

Average life expectancy of person living in africa : A recent study found that the average life expectancy of a person living in Africa is 53 years with a standard deviation of 7.5 years. If a person in Africa is selected at random

Value of the test statistic-car dealerships in area : There are two car dealerships in a particular region. The mean monthly sales at the two dealerships are about the same. Though, one of the dealerships (dealership A) is boasting to corporate headquarters that his dealership's monthly sales are mor..

User Account

All Pages