The scores on a placement test given to college

freshmen for the past five years are approximately normally

distributed with a mean μ = 74 and a variance

σ2 = 8. Would you still consider σ2 = 8 to be a valid

value of the variance if a random sample of 20 students

who take the placement test this year obtain a value of

s2 = 20?

freshmen for the past five years are approximately normally

distributed with a mean μ = 74 and a variance

σ2 = 8. Would you still consider σ2 = 8 to be a valid

value of the variance if a random sample of 20 students

who take the placement test this year obtain a value of

s2 = 20?

**Additional Requirements**

Level of Detail: Show all work

Rating:
Questions Answered: 361

Solution attached
View Full Answer

**Download Preview:**

Thescoresonaplacementtestgiventocollege

freshmenforthepastfiveyearsareapproximatelynormally...