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Basile [38]
3 years ago
5

Help me pls i want to pass my math class

Mathematics
1 answer:
luda_lava [24]3 years ago
7 0

Answer:

D

Step-by-step explanation:

You know the slope has to be -5, because in the equation it says -5x. You know the y intercept has to be a number on the y axis, and since it says the y intercept is 4 in the equation, you would know its (0,4).

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Cushing's disease is characterized by muscular weakness due to adrenal or pituitary dysfunction. To provide effective treatment,
Katyanochek1 [597]

Answer:

Since the calculated value of t =-0.427 does not  fall in the critical region so we accept H0 and conclude that there is enough evidence to show that mean difference in the  age of onset of symptoms and age of diagnosis is  25 months  .

Step-by-step explanation:

The given data is

Difference d= -24 -12 -55 -15 -30 -60 -14 -21 -48 -12 -25 -53 -61 -69 -80

∑ d= -579

 ∑d²= 29871

1) Let the hypotheses be

H0: ud= 25 against the claim    Ha: ud ≠25

H0 : mean difference in the  age of onset of symptoms and age of diagnosis is  25 months  .

Ha:   mean difference in the  age of onset of symptoms and age of diagnosis is not 25 months.

 

2) The degrees of freedom = n-1= 15-1= 14

3) The significance level is 0.05

4) The test statistic is

t= d`/sd/√n

The critical region is ║t║≤ t (0.025,14) = ±2.145

d`= ∑di/n= -579/15= -38.6

Sd= 23.178  (using calculators)

Therefore

t= d`/ sd/√n

t= -38.6/ 23.178√15

t= -1.655/3.872= -0.427

5) Since the calculated value of t =-0.427 does not  fall in the critical region so we accept H0 and conclude that there is enough evidence to show that mean difference in the  age of onset of symptoms and age of diagnosis is  25 months  .

8 0
3 years ago
Can you finish this for me please? My calculator isn’t making sense and I’m sure I typed the equation in right. I will mark Brai
likoan [24]

Answer:

x=25

Step-by-step explanation:

4x-10x=x-175

Move all the x values to one side:

175=x+10x-4x

Simplify:

175=7x

Divide both sides by 7:

25=x

4 0
3 years ago
Read 2 more answers
What is 2,684,735 rounded to the nearest hounded thousand
Ivanshal [37]
2,684,735 = 2,700,000 to the nearest hundred thousand
4 0
3 years ago
Read 2 more answers
I put more points, sorry
Murljashka [212]

Answer:

I dont understand. It isnt clear on what they want you to do.

3 0
3 years ago
A random sample of 169 observations is to be drawn from a population with a mean of 80 and a standard deviation of 39. find the
Drupady [299]
Mu=80, sigma=39, X=85
Z=(X-mu)/sigma = 5/39=0.128=0.13
P(X<=85)= 0.5517 (from Z-table)
so, P(X>85)=1-0.5517=0.4483 approx. thats 44.8% probability.

8 0
3 years ago
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