A previous study claims that 75% of all students graduate on time. You believe the percentage is lower than that. In a random sample of 200 students, 142 will graduate on time. At the significance level. 05, what conclusion do you draw?

60 144 Here's my question

If it took 5 hours to travel 90 kilometers, then at that rate, how many kilometers would be traveled in 15 hours?

1/8 gram of copper and 1/3 of silicone is used to manufacture 30 headphones. how much silicone is used in each pair of headphones?

What is 213=3 (7-8a) in a Formal Two Column Proof Form

The intensity, io, of a light source is reduced to i after passing through d meters of fog according to the formula i = ioe-0.22d.

3. A car dealer has 395 cars on the lot. Of these cars, about 15% are red. Which is the best estimate of the number of red cars on the lot? A. B. C. D. 40 60 70 80

Hamburgers cost three dollars and hotdogs cost two dollars the total cost of buying be burgers and D hotdogs can be expressed by C equals 3B plus 2-D how can this equation be solved for D A) d = C-3b/2 B) d = C - 3/2b C) d = B - 3C/2 D) d = C-b

Find the quotient 5 divided by 7/8

An airplane can ascend at a rate of 52 1/2 meters in 2/3 of a second how many meters can the airplane ascend in one second

What is each number in scientific notation 0.00037 0.00000037 0.00003117?