I'm unsure if I selected the right solutions for this problem. Can you please check before I turn it in?

(5 points) Problem #13. In which of the following situations is it reasonable to use the t- interval procedure to obtain a confidence interval for the population mean? Assume the population standard deviation is unknown. Circle all that apply. (a)n=10 and the population is normally distributed (b) n= 10 and the population is highly skewed to the right (c) n=50 and the population is normally distributed (d) n=500 and the population is highly skewed to the right (e) The t-interval procedure is not reasonable in any of these situations