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lora16 [44]
2 years ago
12

An important reason for China’s rapid population increase in the seventeenth and eighteenth centuries was

Advanced Placement (AP)
1 answer:
tatyana61 [14]2 years ago
7 0

Answer: the introduction of new crops from the Americas

Explanation:

The rapid population increase in China in the seventeenth and eighteenth centuries was due to the introduction of new crops from the Americas.

Food crops like maize, tomatoes, sweet potatoes, beans etc were brought into China which led to major developments accompanied with migration and population growth.

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A test of the null hypothesis H0: μ = 0 gives test statistic z = 1.8. a) What is the P-value if the alternative is Ha: μ &gt; μ0
n200080 [17]

According to the result of the test statistic, the p-values are given by:

a) 0.0352.

b) 0.9648.

c) 0.0704.

<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 <u>p-value of z</u>.
  • For a right-tailed test, it is the area under the normal curve to the right of z, which is <u>1 subtracted by the p-value of z.</u>
  • 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 <u>2 multiplied by 1 subtracted by the p-value of z.</u>

In this problem, the test statistic is z = 1.8, which has a p-value of 0.9648.

Item a:

Right-tailed test, hence the p-value is of 1 - 0.9648 = 0.0352.

Item b:

Left-tailed test, hence the p-value is of 0.9648.

Item c:

Two-tailed test, hence the p-value is of 2 x (1 - 0.9648) = 2 x 0.0352 = 0.0704.

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

3 0
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