题目内容

99% of area under standard normal curve lies between______ of the mean. ()

A. 1 SD
B. 1.96SD
C. 2.58SD
D. 1.64SD
E. 1.28 SD

查看答案

搜索结果不匹配？点我反馈

更多问题

In paired t test, the Ha should be:()

A. μ=μ0
B. μ≠μ0
C. μ1=μ2
D. μd≠0
E. μd=0

查看答案

If n1=10 and n2=11, the d.f. in the t test for two independent means should be:()

A. 10
B. 19
C. 11
D. 1
E. 21

查看答案

Statistical inference includes:()

A. central tendency and dispersion
B. t test and z test
C. estimation and hypothesis testing
D. distribution and sampling error
E. discrete and continuous

查看答案

For the t distribution, when t value increases, its corresponding P value:()

A. increases
B. unchanged
C. decreases
D. increases, and then decreases
E. decreases, and then increases

查看答案

99% of area under standard normal curve lies between______ of the mean. ()

A. 1 SD B. 1.96SD C. 2.58SD D. 1.64SD E. 1.28 SD

In paired t test, the Ha should be:()

If n1=10 and n2=11, the d.f. in the t test for two independent means should be:()

Statistical inference includes:()

For the t distribution, when t value increases, its corresponding P value:()

A. 1 SD
B. 1.96SD
C. 2.58SD
D. 1.64SD
E. 1.28 SD