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igomit [66]
3 years ago
11

The effect of drugs and alcohol on the nervous system has been the subject of considerable research recently. Suppose a research

neurologist is testing the effect of a drug on response time by injecting 150 rats with a unit of dose of the drug, subjecting each to neurological stimulus, and recording its response time. The neurologist knows that the mean response time for rats not injected with the drug (the "control" mean) is 1.2 seconds. S/he wishes to test whether the mean response time for the drug-injected rats is greater than 1.2 seconds. If the sampling experiment is conducted with the sample mean equal to 1.05 second, set up the test of hypothesis for this experiment and determine if the results are significant. Suppose drug-injected rats have a mean response time of 1.1 .seconds, that is mu = 1.1 seconds.
Calculate the value of beta corresponding to the two rejection regions.
Mathematics
1 answer:
Ymorist [56]3 years ago
6 0

Answer: The answer is not to have drugs

Step-by-step explanation:

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Morgarella [4.7K]
Since there are a total of 48 beads and each bead will either be blue or yellow, in order to find out how many of each colour bead she will use, do the following:

Divide 48 by 3 to get 16 yellow beads.

Now that you know how many yellow beads there are, just subtract that from 48:
48 - 16 = 32

Therefore, she will use 16 yellow beads and 32 blue beads.

5 0
3 years ago
I leave my family's vacation cabin at 8 a.m. and start driving home at a nice, safe 45 mph. Two hours later, my husband, who alw
Murljashka [212]

Answer:

2:30 pm

Step-by-step explanation:

In two hours (from 10am), she is 45 * 2 = 90 miles from vacation cabin.

From then on her average is still 45 mph and her husband's is 65 mph. So, husband catches her 20 miles (65-45=20) in every hour.

<em>The husband has to catch up 90 miles. How long would it take if he is catching up at 20 miles an hour?</em>

<em>90/20 = 4.5 hours</em>

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<em>So husband starts at 10am and 4.5 hours form that time is 2.30pm</em>

6 0
3 years ago
Pls help and show workings <br> Due ASAP
Tanya [424]

Answer:

ASA angle side angle

Step-by-step explanation:

DE=JH(given)

angle E= angle H (given)

angle D=angle J (given)

4 0
2 years ago
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Please help finding area
Vikki [24]

Answer:

so what's 10 x 15?

that's what it's mainly asking you

10 x 15

answer: is 150

- that's what I think it is..

3 0
3 years ago
I’ll mark brainliest
enyata [817]

Answer:

\text{A. }y=1.30x+1.50

Step-by-step explanation:

The two ringtones will cost her a total of 0.75\cdot 2=1.50 and is a fixed amount. The relationship between the cost and number of songs only is y=1.30x and therefore the answer is \boxed{\text{A. }y=1.30x+1.50}. You can also directly find the answer by finding the y-intercept (in this case 1.50), as no other answer choices include the term 1.50, so A must be the correct answer.

6 0
3 years ago
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