A researcher is investigating whether a new fertilizer affects the yield of tomato plants. As part of an experiment, 20 plants will be randomly assigned the new fertilizer and 20 will be assigned the current fertilizer. The mean number of tomatoes produced per plant will be recorded for each fertilizer, and the difference in the sample means will be calculated. Which of the following is the appropriate inference procedure for analyzing the results of the experiment?

Which of the following is the appropriate inference procedure for analyzing the results of the experiment?

a)A matched-pairs t-interval for a mean difference

b)A two-sample t-interval for a difference between sample means

c)A two-sample t-interval for a difference between population means

d)A one-sample t-interval for a sample mean

e)A one-sample t-interval for a population mean