A product developer wanted to know the preferred advertising strategy for a new hair cream varies based target demographic group. He used three target demographic groups: 13-25 (young), 26-40 (mid), and 41-60 (older) year olds and presented all participants with both products. He recorded which cream each participant liked, as presented below. Did the preferred advertisement hair cream differ by age group? Advertisement version TOTALS A B Young 3 7 10 Mid 4 6 10 Older 6 4 10 TOTALS 13 17 30 Question 1: What are the two variables in this study? Question 2: What are their scales of measurement?
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
A product developer wanted to know the preferred advertising strategy for a new hair cream varies based target demographic group. He used three target demographic groups: 13-25 (young), 26-40 (mid), and 41-60 (older) year olds and presented all participants with both products. He recorded which cream each participant liked, as presented below. Did the preferred advertisement hair cream differ by age group?
| Advertisement version | TOTALS | ||
| A | B | ||
| Young | 3 | 7 | 10 |
| Mid | 4 | 6 | 10 |
| Older | 6 | 4 | 10 |
| TOTALS | 13 | 17 | 30 |
Question 1: What are the two variables in this study?
Question 2: What are their scales of measurement?
Introduction:
The given study aims to find the relationship between the age of the people and the type of advertisement for hair cream they preferred.
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