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gregori [183]
1 year ago
5

a study was to be undertaken to determine if a particular training program would improve physical fitness. an srs of 31 universi

ty students was selected to be enrolled in the fitness program. one important measure of fitness is maximum oxygen uptake. measurements of oxygen uptake in untrained individuals are known to follow a normal distribution with a mean of begin mathsize 16px style mu end style
Mathematics
1 answer:
Nataliya [291]1 year ago
3 0

Step-by-step explanation:

A study was to be undertaken to determine if a particular training program would improve physical fitness. A sample of 31 university students was selected to be enrolled in the fitness program. The researchers wished to determine if there was evidence that their sample of students differed from the general population of untrained subjects. The sample mean is 47.4 and a standard deviation of 5.3. The 98% confidence interval is determined and is given as, (45.2, 49.6) .

If the level of confidence is changed to 95%, then the confidence interval will become shorter but the p-value will not change because it is calculated using the test statistic. So the correct answer is (a).

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What is the mixed number of 47/11?
slava [35]
\frac{47}{11}=\frac{44+3}{11}=\frac{44}{11}+\frac{3}{11}=4+\frac{3}{11}=\boxed{4\frac{3}{11}}
6 0
3 years ago
DO NOT GIVE THE ANSWER <br> Please explain how to do this
Vlad1618 [11]

Explanation:

Right now, we are given: \frac{b}{-8} =-2.

\frac{b}{-8} is basically b divided by -8. In order to solve for b, we need to "undo" the division part - and to do so, we use the opposite of division, which is multiplication.

So, we would multiply both sides by -8: \frac{b}{-8} *-8=-2*(-8)

On the left, when we multiply by -8, the -8 we multiplied and the -8 in the denominator cancel out, so we're just left with b. On the right side, it's simply the multiplication of -2 by -8. Here, since we have two negative numbers, the negatives cancel out to become a positive product, and 2 * 8 = 16. So, -2 * -8 = 16.

As you did not want the answer, I will not say explicitly the actual answer, but hopefully you can figure it out from my explanation above!

6 0
3 years ago
Read 2 more answers
Square root of 342354456​
-Dominant- [34]

Answer:

18502.8229198

3 0
2 years ago
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When 'x' is multiplied by a number inside the parentheses, it causes what type of
Ainat [17]
I am just answering for points
4 0
2 years ago
3 + 2x = y Given x = 4 y =
wel

Answer:

y = 11

Step-by-step explanation:

Plug 4 in for x.

3 + 2(4) = y

Multiply.

3 + 8 = y

Simplify.

11 = y

7 0
2 years ago
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