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soldi70 [24.7K]
2 years ago
14

Julie knows that the adult population gets, on average, eight hours of sleep each night. A hypothesis test can help her see if c

ollege students are different from the adult population. Julie tabulated that her sample of 101 students got an average of 7.1 hours of sleep each night, with a standard deviation of 2.48. Using the data provided and the formula below, what is the t-statistic that Julie calculates
Mathematics
1 answer:
Mamont248 [21]2 years ago
6 0

Answer:

-3.64

Step-by-step explanation:

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I’LL MARK AS BRAINLIEST!!! Plz no links
Rufina [12.5K]

Answer:

6 people

Step-by-step explanation:

75% of 8 is 6

multiply 8 by the decimal .75

4 0
3 years ago
Using GCF write an expression that is equivalent to 16p+48
aalyn [17]
You start by looking at what number can divide evenly into both 16 and 48. Both numbers are divisible by 16. 16 goes into 16 once and 16 goes into 48 three times. So you divide each term by 16 and your expression should look like this: 16 (p+3)
8 0
2 years ago
Frequently oil deposits are located where it is impractical to place a drilling rig. For example, a deposit might be 1,834 feet
o-na [289]
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8 0
3 years ago
Find two positive numbers if their ratio is 8:5 and the difference is 150.
natima [27]
Let's call the two numbers x and y. We can write a system of equations to describe the situation:

5x = 8y

x - y = 150

Let's solve the first equation for x:

x = 8y/5

Now we can use substitution to solve the system by plugging 8y/5 in for x in the second equation:

(8y/5) - y = 150

Simplify:

3y/5 = 150

3y = 750

y = 250

If y = 250, then x is:

x = 8(250)/5 = 400

The answer is 250 and 400.






7 0
3 years ago
Round<br> 38.86 to 1 decimal place
Sonbull [250]
38.9 is the answer. because it is rounded to the nearest tenth.
5 0
2 years ago
Read 2 more answers
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