What is the standard error?

Is a t-Distribution Appropriate? Quest Math Fil A sample with size n = 75 hasX = 18.92, ands = 10.1. The dotplot for this sample is given below. Questi Multipart ooo OoOO Questic Math Fill i OOOOO Viewing oooooooooo. . 00 8 oo OO 0 0 oo O O 13 Math Fill in 10 20 30 40 50 60 Indicate whether or not it is appropriate to use the t-distribution. Question Math Fill in Yes Question If it is appropriate, give the degrees of freedom for the t-distribution and give the estimated standard error. If it is not appropriate, Multipart enter - 1 in both of the answer fields below. Question Enter the exact answer for the degrees of freedom and round your answer for the standard error to two decimal places. Multipart