Question

A candy company is making a new chocolate bar. To estimate the proportion of adults aged 18-40 that prefer it over a competitor’s chocolate bar they conduct a taste-tested on consumers. Forty-five participants are given a blind taste test of the twoThis confidence interval means:

i. 95% of the sample prefer the new chocolate bar over a competitor’s chocolate bar.

ii. 95% of the time an adult aged 18-40 will prefer the new chocolate bar over a competitor’s chocolate bar.

iii. We are 95% confident that the confidence interval includes the true proportion of adults aged 18-40 that prefer the new chocolate bar over a competitor’s chocolate bar.

Answer 1

a 95% confidence interval for a parameter indicates that more than 95% of time the confidence interval will contain the true population parameter..

in this case the population parameter is the proportion pf adults aged 18-40 prefer the new chocolate over a competitors chocolate bar..

so the ans is..

option iii.