Frank wanted to see whether adding some compost to the soil would affect the size of the vegetables in his garden. He created two pumpkin patches with similar sun exposure. In one patch, Frank used only the natural soil in his garden, and in the other patch, he mixed some compost in with the natural soil. He then sowed the same type of pumpkin seeds in both patches, and watered them on identical schedules. When the pumpkins were ready to harvest, Frank measured the approximate diameters, in inches, of the pumpkins in each patch. The summary statistics are shown in the table. What is a 90% confidence interval for the difference between the mean diameters of the pumpkins in each patch? (You may assume that there are = 30 degrees of freedom.)
A) (3.83, 8.17)
B) (4.20, 7.80)
C) (4.61, 7.39)
D) (4.73, 7.27)

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

~

the correct option is b

step-by-step explanation:

mnkjn

step-by-step explanation:

2: 10

step-by-step explanation: