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Musya8 [376]
2 years ago
14

12 Over a period of several years in a sleep-therapy clinic, the average latency to fall asleep for adult males, age 20-30, has

been found to be 335 seconds. In a study of the effectiveness of hypnotic therapy, 30 males of the appropriate age are given the treatment and then their latency to fall asleep is measured.
The results are a mean latency of 283.7, with a variance of 5,756.26 seconds. Test the hypothesis that hypnotic therapy has no effect on sleep latency. Use an a level of .05 and a nondirectional test.
Mathematics
1 answer:
Volgvan2 years ago
8 0

Answer:

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xnbdjendnfjnxnrnxzkksvixibdbwbkchfjenz

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adelina 88 [10]
The correct answer is A
8 0
3 years ago
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1) You are designing a new kiddie soccer arena. The area of the rectangular
nikdorinn [45]

Answer:

The length of the rectangular field is 12 ft and the width is 5 ft.

Step-by-step explanation:

The area of a rectangle is:

\text{Area} = \text{length}\times \text{width}

The area of a rectangular field is, <em>A</em> = 60 ft.

The length of the field is:

l = w + 7

Compute the width of the field as follows:

\text{Area} = \text{length}\times \text{width}

60=(w+7)\times w\\\\60=w^{2}+7w\\\\w^{2}+7w-60=0\\

Factorize the last equation by splitting the middle term as follows:

w^{2}+7w-60=0\\w^{2}+12w-5w-60=0\\w(w+12)-5(w+12)=0\\(w-5)(w+12)=0

Now, since the width of rectangular field cannot be negative, the width is 5 ft.

Compute the length as follows:

l = w + 7

 = 5 + 7

 = 12

The length of the rectangular field is 12 ft.

7 0
2 years ago
last year there were b pies baked for the bake sale. This year there were 194 pies baked. Using b write an expression for the to
muminat

Answer:

b+194=pies

Step-by-step explanation:

take the number of pies baked this year then add the b and then you get p(pies)

6 0
2 years ago
What is the equation of the line that passes through the points (2, –1) and (6, 1)?
Zolol [24]
Y=kx+b
2k+b=-1
6k+b=1
6k+b-2k-b=2
4k=2
k=1/2
b=-2
y=1/2x-2
So your answer is option A

8 0
3 years ago
Help me please with the problem!!!!!!
NISA [10]

Answer:

D. 8

Step-by-step explanation:

We need to count how many are longer than 7.  There are 4 leaves that are 7 inches long. 3 are 8 inches long. 1 in 9 inches long. Adding these up gives us our answer. Let x be the leaves 7 inches or longer.

4+3+1=x

Add 3 and 1.

4+4=x

Add 4 and 4

8=x

There are 8 leaves that are 7 inches or longer.


4 0
3 years ago
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