The answer is not E

In checking conditions for constructing confidence intervals for a population mean, it's important to plot the distribution of sample data. Below are dot plots describing samples from three different populations. For which of the three samples would it be safe to construct a t interval? Plot X Plot Y Plot Z ...... 2 : 34567 89 0123456789 0 1 4 56789 Select one: O a. Plot X only O b. Plot Z only O c. Plots Y and Z O d. None of the plots. e. Plot Y only x