Independent-dependent and matched pairs

Reference no: EM1394680

1. Determine whether the sampling method is independent or dependent for the following example. A researcher wants to know whether the newly issued "state" quarters have a mean weight that is different from "traditional" quarters. He randomly selects 18 "state" quarters and 16 "traditional" quarters. Their weights are compared.

2. Determine whether the sampling method is independent or dependent for the following example. A researcher wants to know whether the price of a one night stay at a Holiday Inn Express Hotel is less than the price of a one night stay at a Red Roof Inn Hotel. She randomly selects 8 towns where the location of the hotels is close to each other and determines the price of a one night stay.

3. Dependent samples are often referred to as matched pairs samples. For example, we have decided to lose weight in a Watch Watchers class so all of us weigh in at the beginning of class and follow a prescribed diet. Then we weigh in at the end of class and the means score are compared before and after the diet. Hopefully, we have lost some weight. The scores should show a significant difference. Provide another example of a matched pairs sample.

Reference no: EM1394680

Questions Cloud

Question on simple random sample : A simple random sample is to be drawn from a population of 1200. To have 90% confidence that the sampling error in estimating p is no more than 0.03

Determination of the phenotypic ratios : In peas, the allele for tall plants (T) is dominant to the allele for short plants and the allele for purple flowers (P) is dominant to white flowers (p).

Likelihood of accurately predicting your customers purchases : Discuss at least three reasons why these predictions may not be accurate and offer three ways in which you can increase the likelihood of accurately predicting your customers' purchases.

How to diagnose marketing problem : If you were to serve as the research consultant, what information would you require to allow you to help diagnose marketing problem(s)?

Independent-dependent and matched pairs : Determine whether the sampling method is independent or dependent for the following example. A researcher wants to know whether the newly issued "state" quarters have a mean weight that is different from "traditional" quarters.

Finding phenotypes and phenotypic ratios : In cats, coat color is an X-linked trait where a black coat is determined by the XB allele and a yellow coat by the Xb allele. Black and yellow are co-dominant and a heterozygote has a tortoiseshell coat.

Calculate the amount of naf in milligrams : Water supply in a city is fluoridated by adding NaF. The preferred concentration of F- is 1.6ppm.calculate the amount of Naf in milligrams should be added per gallon (treated water) if the water supply is 0.2 ppm in F-?

Completing electronics test having uniform distribution : The time it takes a student to finish a electronics test has a uniform distribution between 50 and 70 minutes.

Long run - monopolistically competitive firm : In the long run, the most helpful action that a monopolistically competitive firm can take to maintain its economic profit is to lower price

User Account

All Pages