QUESTION1

A dietitian at Mark hospital suggested that the calories in breakfast cereals should be 105.667 calories per cup. The dietitian collected a sample of 21 cups of cereals and conducted a one-sample t-test. S/he got a t-test statistic of 0.383.

Without calculating a 95% confidence interval for calories in breakfast cereals, do you think the dietitian's belief,

= 105.667, is inside the confidence interval?

Hint: It may be helpful to obtain a p-value based on the t-test statistic.

QUESTION2

Department waiting times waiting times o Department A Department B (2 mark) Which assumptions of a two-sample t-test can be checked using the above boxplots? Has this assumption been satisfied? Explain why or why not