Question 1
Solve the problem.
Among a random sample of 500 college students, the mean number of hours worked per week at non-college related jobs is 15.1. This mean lies 2.8 standard deviation(s) below the mean of the sampling distribution. If a second sample of 500 students is selected, what is the probability that for the second sample, the mean number of hours worked will be at least 15.1?
◦ 0.9974
◦ 0.9965
◦ 0.5
◦ 0.0026
Question 2
Solve the problem.
Among a random sample of 150 employees of a particular company, the mean commute distance is
This mean lies 2.2 standard deviation(s) below the mean of the sampling distribution. If a second sample of 150 employees is selected, what is the probability that for the second sample, the mean commute distance will be less than 29.5 miles?
◦ 0.9861
◦ 0.5
◦ 0.0139
◦ 0.0107
Sample preoperative checklist.
How to solve word problems with two unknowns (Question 1)
Answer to Trig problem
Problem
Physics - Problem Exercise
How do you solve this 3x^2 -7x +2 and (x-1)^2 + (y-7)^2 =6