Karen asked her female friends whether they were vegetarian

Karen asked her female friends whether they were vegetarian. Among 40 responses, 15 were responses of \"yes\". Is it valid to use these results to test the claim that the proportion of American women that are vegetarian is > 25%? Why or why not? Explain using statistical language, no calculations are necessary.

Solution

HEre the ratio of women saying YES, is 15/40 = 3/8 = 37.5 %

that is surely more than 25%, so YES, it is valid to use these results test the claim that the proportion of Aemerican women that are vagerarian is > 25%.