Author Question: The principal randomly selected six students to take an aptitude test. Their scores were: 72.3 ... (Read 156 times)

joe · **on:** Aug 2, 2018

The principal randomly selected six students to take an aptitude test. Their scores were:

72.3 87.0 82.6 86.1 84.5 74.8
Determine a 90 percent confidence interval for the mean score for all students.
A) 76.13 < < 86.30 B) 76.03 < < 86.40 C) 86.30 < < 76.13 D) 86.40 < < 76.03

Question 2

What is the probability of randomly selecting a person who died from cancer?

A) 0.00171 B) 4.08778 C) 0.00058 D) 0.24463