Confidence Interval for a Difference in Means
Researchers calculated a 99 percent confidence interval for the difference in mean weight loss (new diet minus standard diet) as (–1.2, 5.7) pounds. The researchers wish to claim that the new diet is superior. Based on this interval, which course of action is most appropriate?
A
Collect more data before making any claims.
B
Reduce confidence level to 95% to narrow the interval.
C
Claim the diets are equivalent.
D
Claim superiority with 99% confidence.
Question Leaderboard
Not enough data yet to show leaderboard.