For a random sample of 46 University of Maryland undergraduate students, the mean amount of sleep last night equal 6.8 hours with a standard deviation of 1.3 hours. What would the boundaries for a 99% confidence interval to estimate the mean amount of sleep last night for all UMD undergraduate students equal

a) at most means it can cost $12 or less

so the inequality sign would be ≤

you would then need to multiply the number of toppings by the 0.35 for each one and add it to the cost of the cheese pizza.

the equation would be 9.99 + 0.35x ≤ 12

b) using the above equation:

9.99 + 0.35x ≤ 12

subtract 9.99 from each side:

0.35x ≤2.01

divide both sides by 0.35:

x ≤ 2.01 / 0.35

x ≤5.74

at most you could have 5 toppings.

the 5 topping pizza would cost: 0.35 x 5 = 1.75 + 9.99 = $11.74

a. true

if you are using power tools in or around standing water, you should continue and always proceed with caution.