37. Which of the following is a true statement regarding the comparison of t- distributions to the standard normal distribution? a. The normal distribution is symmetrical whereas the t-distributions are slightly skewed. b. The proportion of area beyond a specic value oft is less than the proportion of area beyond the corresponding value of z. c. The greater the df, the more the t-distributions resemble the standard normal distribution. (1. All of the above. e. None of the above