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Nookie1986 [14]
3 years ago
14

Let x be a random variable that represents hemoglobin count (hc) in grams per 100 milliliters of whole blood. then x has a distr

ibution that is approximately normal, with population mean of about 14 for healthy adult women. suppose that a female patient has taken 10 laboratory blood tests during the past year. the hc data sent to the patient's doctor are as follows. 15 18 16 20 15 12 15 18 15 11 (i) use a calculator with sample mean and standard deviation keys to find x and s. (ro
Mathematics
1 answer:
Zolol [24]3 years ago
4 0
<span>Answer: Calculating the t test statistic t = (xbar - mu)/(s/sqrt(n)) t = (4.40-4.66)/(0.28/sqrt(6)) t = -2.27452618972722 t = -2.275 The t test statistic is approximately -2.275</span>
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What is the equation of a line that has a slope of 2 and passes through the point (-6, 3)?
musickatia [10]

Answer:

y=2x+15

Step-by-step explanation:

Idk if you still need help but this is the answer.

Explanation:

You want to find the equation for a line that passes through the point (-6,3) and has a slope of 2.

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

To start, you know what m is; it's just the slope, which you said was 2. So you can right away fill in the equation for a line somewhat to read:

y=2x+b.

Now, what about b, the y-intercept?

To find b, think about what your (x,y) point means:

(-6,3). When x of the line is -6, y of the line must be 3.

Because you said the line passes through this point, right?

Now, look at our line's equation so far: . b is what we want, the 2 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (-6,3).

So, why not plug in for x the number -6 and for y the number 3? This will allow us to solve for b for the particular line that passes through the point you gave!.

(-6,3). y=mx+b or 3=2 × -6+b, or solving for b: b=3-(2)(-6). b=15.

The equation of the line that passes through the point (-6,3) with a slope of 2

is y=2x+15

6 0
3 years ago
A lawn care service charges a $15 equipment fee plus $10 per hour. For x number of hours, they charge y=10x+15 . Susan found a d
rusak2 [61]

Answer:

$$$$$$$$                      the anwser is 4 i think thats how you solve it

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Two consecutive positive integers have the property that one integer times the other equals 612. What is the sum of these two in
KiRa [710]

Answer:

The integers are 17 and 18

6 0
3 years ago
9+4 the power of 3 times (20-8) divided by 2 + 6
kari74 [83]
The answer to the question is 3295.5
6 0
3 years ago
If I score 12 points in the first quarter of a basketball game, and he continues to score in this manner for the entire game, ho
vichka [17]
12 times four quarters is 48 so you would score 48 points total
7 0
4 years ago
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