Statistics Help

The board of directors of Proctor and Gamble is concerned that only 19.3% of the people who use toothpaste buy Crest toothpaste. A marketing director suggests that the company invest in a new marketing strategy which will include advertisements and a new labeling for the toothpaste. The research department conducts products trials in the test markets for one month to determine if the market share increases with new labels.

What level of significance did the research department use? With 98% confidence.

Question

Statistics Help

The board of directors of Proctor and Gamble is concerned that only 19.3% of the people who use toothpaste buy Crest toothpaste. A marketing director suggests that the company invest in a new marketing strategy which will include advertisements and a new labeling for the toothpaste. The research department conducts products trials in the test markets for one month to determine if the market share increases with new labels.

What level of significance did the research department use? With 98% confidence.

amistre64 · Answer

|dw:1367354258433:dw|

$$significance~level=\alpha$$