Critical value-car dealerships in a particular area

Assignment Help Basic Statistics

Reference no: EM1392300

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 you will test to conclude if the analyst finds evidence that the boast of dealership A is correct. What will be your critical value?

Reference no: EM1392300

Questions Cloud

Distinguish between acids and bases : Distinguish between acids and bases and relate each to the pH scale. What is a buffer and what makes buffers important to life?

What is the labor content total number of labor hours : How long would it take to complete 1,000 projects with each alternative? What is the labor content (total number of labor hours) for 1,000 projects for each alternative?

Determining two normal distributions : One normal curve has mean 23 and standard deviation 1, a second normal curve has mean 5 and standard deviation 10. The curve that is more dispersed, or spread out, is

Multiple choice questions - cancer biology : Once apoptosis starts, a detachment takes place in extra cellular matrix. This is calleda. In which organelle translation takes place inside the cell?

Critical value-car dealerships in a particular area : Using the .01 significance level you will test to conclude if the analyst finds evidence that the boast of dealership A is correct. What will be your critical value?

A research team conducted a study of soft-drink preferences : A research team conducted a study of soft- drink preferences among residents in a test market prior to an advertising campaign for a new cola product.

Develop timeline on computer using microsoft word : Use Microsoft Word, Excel or PowerPoint to develop timeline on computer. Create your own timeline and take a picture, saving file on computer as .jpg or .gif.

Determining standardized form-normal distribution : For some positive value of Z, the probability that a standard normal variable is between 0 and Z is 0.3770. Find value of Z? For some value of Z, the probability that a standard normal variable is below Z is 0.2090. Find value of Z?

Define spontaneous generation : Define spontaneous generation and who found this idea with animals? who discover his idea for microbes? describe his experiments?

User Account

All Pages