A fast-food company advertises a low calorie chicken sandwich as having 300 calories.A sample of 25 sandwiches revealed the sample mean of the number of calories to be 288 with a sample standard deviation of 28.5. At the 0.05 significance level, can we conclude that the mean number of calories is equal to 300 as the company advertises?

a. State the null and alternative hypothesis.

b. Formulate the rejection rule.

c. Do you reject the null hypothesis?

d. Can you conclude that the mean number of calories is equal to 300?

Answer rating: 100% (QA)

a Null Hypothesis H0 The mean number of calories is equal to 300 300 Alternative Hypothesis HA The m... View the full answer