Question

Since previous studies have reported that elite athletes are often deficient in their nutritional intake (for example, total calories, carbohydrates, protein), a group of researchers decided to evaluate Canadian high-performance athletes. A total of n = 324 athletes from eight Canadian sports centers participated in the study. One reported finding was that the average caloric intake among the n = 201 women was 2403.7 kilocalories per day (kcal/d). The recommended amount is 2811.5 kcal/d.

For one part of the study, n = 114 maleathletes from eight Canadian sports centers were surveyed. Their average caloric intake was 3077.0 kilocalories per day (kcal/d) with a standard deviation of 987.0. The recommended amount is 3422.1. Is there evidence that Canadian high-performance male athletes are deficient in their caloric intake?

(b) Carry out the test. (Round your answer for t to three decimal places.)

t = ?
Give the degrees of freedom.
= ?

Give the P-value. (Round your answer to four decimal places.)  

=?
(c) Construct a 95% confidence interval for the daily average deficiency in caloric intake. (Round your answers to one decimal place.)

( , ) kcal/day =?

Answer 1