a company that sells hair - care products wants to determine if a product that combines shampoo and…

a company that sells hair - care products wants to determine if a product that combines shampoo and conditioner works better than a shampoo and conditioner used separately. a researcher recruits 60 volunteers and pairs them according to age, hair color, and hair type. for each pair, the researcher flips a coin to determine which volunteers will use the shampoo/conditioner combination and which ones will use the separate shampoo and conditioner. after using the products for one month, the subjects are asked to rate their satisfaction with the hair products on a scale of 1 - 10 (1 = highly dissatisfied and 10 = highly satisfied). what type of sampling is described in this study? one sample paired data two samples more than two samples

a company that sells hair - care products wants to determine if a product that combines shampoo and conditioner works better than a shampoo and conditioner used separately. a researcher recruits 60 volunteers and pairs them according to age, hair color, and hair type. for each pair, the researcher flips a coin to determine which volunteers will use the shampoo/conditioner combination and which ones will use the separate shampoo and conditioner. after using the products for one month, the subjects are asked to rate their satisfaction with the hair products on a scale of 1 - 10 (1 = highly dissatisfied and 10 = highly satisfied). what type of sampling is described in this study? one sample paired data two samples more than two samples

Answer

Brief Explanations:

The researcher pairs volunteers based on certain characteristics (age, hair - color, hair - type). For each pair, one uses the combined product and the other uses the separate products. This is a classic example of paired data sampling where observations come in pairs.

Answer:

paired data