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STatiana [176]
3 years ago
9

When 14 different second-year medical students measued teh systolic blood pressure of the same person, they obtained the results

listed below. assuming that the population standard deviation is known to be 10 mmhg, use
a.05 significance level to test the claim that the mean blood pressure leve is less than 140 mmhg. hypertenstion is defined to be a blood pressure level taht is too high because it is 140 mmhg or greater. assume the blood pressure levels are normally distributed. based on the test results, can it be safely concluded that the person does not have hypertension. 138,140,135,120,120,125,120,140,130,144,143,130,140,150?
Mathematics
1 answer:
malfutka [58]3 years ago
7 0
Mean = 133.9
then calculate the z value
with z value you will find out the p value on a table.
if the p value is below .05 reject the null hypotheses
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Answer:

a person supposed to be able to foresee the future.

Step-by-step explanation:

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4 0
3 years ago
Eric orders 3 large cheese pizzas. There is a $2 delivery fee for each pizza.He pays a total of $42.Which equation can be used t
ad-work [718]

Answer:

3(x+2)=42

Step-by-step explanation:

So lets go over what we know:

There are 3 large pizzas

Each pizza has a addition cost of 2 dollars

The total cost is 42 dollars

We need to find the cost per pizza.

Now lets piece together our equation.

We know that the pizzas equal 42 dollars so we can immediately put 42 on the opposite side of the equal side:

=42

We also know that each of the 3 pizzas cost 2 dollars. This would go on the left side of the equation:

6=42
Now, we know x is the amount of pizzas. There are 3 pizzas, or in other words, 3x. We can add this to the left side of the equation, because the 3 pizzas plus the 6 dollars equals the total of 42 dollars:

3x+6=42

There are no answers above that look like this, however. This is because we have to factor the left side of the equation.

A factor of both 3 and 6 is 3. So we can factor out 3 and we get:

3(x+2)=42

This looks like the first answer!
Hope this helps! :3

7 0
2 years ago
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stira [4]
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5 0
3 years ago
Please help giving brainlest
Likurg_2 [28]

Answer:

8 ft; 6 m; 28pi ft; 10pi mm

Step-by-step explanation:

1. Radius = diameter/2

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2. Diameter= radius * 2

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Therefore, 6 m

3. Circumference = 2*pi*r

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Therefore, 28pi ft

4. Circumference = pi*d

Therefore, 10pi mm

I hope this helped and have a good rest of your day!

6 0
3 years ago
Read 2 more answers
The graph of F(x), shown below, has the same shape as the graph of G(x)=x^4 but it is shifted 4 units to the left. What is the e
Rufina [12.5K]
G(x) = (x+4)^4 is the answer. It's D. last choice

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3 0
3 years ago
Read 2 more answers
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