An infomercial is selling a product with the claim that using it induces at least 5...

An infomercial is selling a product with the claim that using it induces at least 5 lbs of weight loss in one week. 16 healthy subjects are recruited to test this claim. All 16 consume the product and choose their own diets.

After the week long trial, the average difference in weight was 4.6 lb less than before, with a standard deviation of 3.5 lb.

Step 3: What is the null hypothesis?

Step 4: What is alpha, and is this a right-tailed, left-tailed or two-tailed scenario?

Step 5: What is the appropriate statistical test?

Step 6: What is the value of the test statistic?

Step 7: What is the critical value for the test statistic?

Step 8: How does the test statistic compare to the critical value?

Step 9: Do you accept or reject the null hypothesis?

Step 10: What is your conclusion?

Expert Solution

orchestra answered 1 year ago

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