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GuDViN [60]
3 years ago
14

If the average American sleeps 8 hours a night, with a standard deviation of 1 hour, and I plan on gathering a sample of 12 coll

ege students to compare to this population, find the following:
mu =
sigma =
mu_x bar =
sigma_x bar =
Mathematics
1 answer:
Nitella [24]3 years ago
8 0

Answer:

8 hours

1 hour

8 hours

0.288675

Step-by-step explanation:

We complete the answer as follows;

mu = mean = 8 hours

sigma = standard deviation= 1 hour

Mu_x bar = mu = 8 hours

sigma_x bar = sigma/√(n) = 1/√(12) = 0.288675

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3 years ago
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Zinaida [17]

The domain for the rational expression as given in the task content is; All real numbers except -5.

<h3>Domain of Rational functions</h3>

The domain of a rational function such as that given in the task content includes all possible values of the variable except that which renders the expression undefined.

On this note, the expression is undefined when, 3x + 15 = 0.

Hence, the domain is All real numbers except -5.

Read more on rational functions;

brainly.com/question/13763081

4 0
2 years ago
line passes through the point (-3,-4) and its y-intercept is (o, -9). What is the equation of the line that is parallel to the f
12345 [234]

Answer:

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Step-by-step explanation:

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Parallel lines have the same slope. So -5/3 is the slope of the second line. Write its equation using the point slope form y-y_1=m(x-x_1).

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5 STARS BRAINLYEST AND 15 POINTS!!!!!!!!!!!!!!!!!
kirza4 [7]
My best guess is the third one. Really sorry if I’m wrong.
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I need help please.
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