Mathematics, 23.10.2020 16:10 tiny2007

A principal at a large high school wants to estimate the number of days freshmen regularly ride the bus to school. The principal randomly selects 35 freshmen and asks them how many days per week they ride the school bus. The
principal constructs a 90% confidence interval for the true mean number of days freshmen ride the bus to school per
week. Which of the following would decrease the margin of error?
O using a sample of size 30
O using a sample of size 40
O constructing a 95% confidence interval
O constructing a 99% confidence interval

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:00, Megcuttie101

What is the measure of the smallest angle in the diagram? 15 29 32 45

Answers: 2

continue

Mathematics, 21.06.2019 19:00, Jessieeeeey

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

Answers: 1

continue

Mathematics, 21.06.2019 20:00, gladysvergara

How does the graph of g(x)=⌊x⌋−3 differ from the graph of f(x)=⌊x⌋? the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted right 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted up 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted down 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted left 3 units.

Answers: 1

continue

Mathematics, 21.06.2019 20:30, shelbylynn17

The function show two sisters' savings account and the rate at which they plan to deposit money

Answers: 3

continue

You know the right answer?

A principal at a large high school wants to estimate the number of days freshmen regularly ride the...