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500 câu trắc nghiệm Kinh tế lượng – 8B

Tổng hợp 500 câu trắc nghiệm + tự luận Kinh tế lượng (Elementary Statistics). Tất cả các câu hỏi trắc nghiệm + tự luận đều có đáp án. Nội dung được khái quát trong 13 phần, mỗi phần gồm 3 bài kiểm tra (A, B, C). Các câu hỏi trắc nghiệm + tự luận bám rất sát chương trình kinh tế lượng, đặc biệt là phần thống kê, rất phù hợp cho các bạn củng cố và mở rộng các kiến thức về Kinh tế lượng. Các câu hỏi trắc nghiệm + tự luận của phần 8B bao gồm:

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response.
1) Compare the technique for decision making about populations using the hypothesis test method and the confidence interval method.

In the hypothesis test method, the comparison is made between a test statistic from the sample data and the critical value from the table. The conclusion is either to reject or fail to reject the null hypothesis based on whether or not the test statistic is in the reject region. With the confidence interval method, the confidence interval is constructed and the population mean is compared against the interval. The conclusion is made based on whether or not the population mean is within the confidence interval.

2) What is the effect on the P-value when a test is changed from two-tailed hypothesis with = and ≠ to one-tailed hypothesis such as > and < ?

The P-value is cut in half.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Find the number of successes x suggested by the given statement.
3) Among 1390 randomly selected car drivers in one city, 7.41% said that they had been involved in an accident during the past year.
○ 104
● 103
○ 102
○ 101

From the sample statistics, find the value of p used to test the hypothesis that the population proportions
are equal.
4) n1 = 40 x1 = 5 n2 = 445 x2 = 268
○ 0.675
○ 0.225
● 0.563
○ 0.450

Compute the test statistic used to test the null hypothesis that p1 = p2.
5) A report on the nightly news broadcast stated that 15 out of 150 households with pet dogs were
burglarized and 25 out of 204 without pet dogs were burglarized.
○ -0.265
● -0.662
○ -0.001
○ -1.125

Find the appropriate P-value to test the null hypothesis, H0: p1 = p2, using a significance level of 0.05.
6) n1 = 50 x1 = 20 n2 = 75 x2 = 15
○ .1201
○ .0001
○ .0032
● .0146