Question

A teacher would like to estimate the true mean amount of time her students spend completing a particular homework assignment. The day the homework is due, the teacher selects a random sample of 30 of her 75 students and records the amount of time that each of them spent completing the assignment. Are the conditions for constructing a t confidence interval met?
a. No, the random condition is not met.
b. No, the 10% condition is not met.
c. No, the Normal/large sample condition is not met.
d. Yes, the conditions for inference are met.

Answer 1

B no the 10% condition is not met