Question: Meal replacement diets work by replacing one or two meals each day with low-calorie, nutrient-rich shakes and bars. A nutritionist claims that, on average, a

Meal replacement diets work by replacing one or two meals each day with low-calorie, nutrient-rich shakes and bars. A nutritionist claims that, on average, a new meal replacement diet program has increased the weight loss to at least 19 lbs, a big improvement over 10 lbs maximum of the previous version. An independent testing of 11 randomly selected patients showed that the sample mean weight loss is 17.42 lbs with a standard deviation of 1.62 lbs. Test the nutritionist's claim using a 0.025 significance level. Assume that the weight losses are approximately normally distributed as the histogram of the sample values is roughly symmetric and bell-shaped, so the Student t distribution is applicable for hypothesis testing. Round to 3 decimal places where appropriate. (a) State the null and alternative hypotheses, identify which one is the claim and type of the test. H 0 : Select an answer ? H 1 : Select an

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!