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Yuri [45]
3 years ago
15

PLEASE HEWP EASY SCIENCE BRIANLIST U CAN BE IF CORRECT

Mathematics
1 answer:
erik [133]3 years ago
4 0

Answer:

65kg

Step-by-step explanation:

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2 years ago
Please help me interpret the p-value!
alexandr402 [8]

The correct interpretation of the p-value is given by:

B If the average battery life really is 5 hours, then a sample of 10 observations having a sample mean of 4.25 hours or lower would only occur about 3.8% of the line.

<h3>How to find the p-value of a test?</h3>

It depends on the test statistic z, as follows:

  • For a left-tailed test, it is the area under the normal curve to the left of z, which is the p-value of z.
  • For a right-tailed test, it is the area under the normal curve to the right of z, which is 1 subtracted by the p-value of z.
  • For a two-tailed test, it is the area under the normal curve to the left of -z combined with the area to the right of z, hence it is 2 multiplied by 1 subtracted by the p-value of z, which means that the p-value for a two-tailed test is twice the p-value of a one-tailed test.

In this problem, a left-tailed test is used, as we are testing if the mean is less than 5 hours.

The sample mean from the 10 times was of 4.25, and the p-value is of 0.038, which means that the area to the left of Z under the normal curve is of 0.038, that is, a sample mean of 4.25 hours or lower would only occur about 3.8% of the line, hence option B is correct.

You can learn more about p-values at brainly.com/question/13873630

3 0
2 years ago
A tour bus travels 2,160 miles in 36 hours. What is the average distance the bus travels in one hour?​
Marysya12 [62]
60 miles in 1 hour (divide the miles by the hours)
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Two numbers have an absolute value of 37. Which of the two number is farther from 1 on the number line
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If I understand what you're saying. It would be the absolute value of -37, which is 37. Also, the absolute value of 37 is 37.

3 0
3 years ago
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