题目内容

用作图法处理数据时,为保证精度,至少应使坐标纸的最小分格和测量值的()相对应。

A. 最后一位有效数字
B. 最后一位准确数字
C. 第一位有效数字
D. 第二位有效数字

查看答案

搜索结果不匹配？点我反馈

更多问题

An army depot that overhauls ground mobile radar systems is interested in improving its processes. The shop floor supervisor believes that having standard work procedures in place will reduce the time required for troubleshooting this component. Time (in minutes) required troubleshootingthis component without and with the standard work procedure is recorded for a sample of 19 employees.

A. This is a one-tailed paired t-test.
B. This is a two-tailed test of two independent means.
C. This is one-tailed test of two independent means.
D. This is a two-tailed paired t-test.

查看答案

Assuming that we define our differences as Time without standard work procedure – Time with standard work procedure, the correct alternative hypothesis is

A. µ d = 0.
B. µ d < 0.
C. µ d > 0.
D. µ d ≠ 0.

查看答案

The correct value of the test statistic is

A. 47.4
B. -6.70
C. 3.19
D. -0.36

查看答案

The P-value associated with the test statistic is

A. 0.321
B. <0.0001
C. 0.05
D. 0.0233

查看答案

用作图法处理数据时,为保证精度,至少应使坐标纸的最小分格和测量值的()相对应。

A. 最后一位有效数字 B. 最后一位准确数字 C. 第一位有效数字 D. 第二位有效数字

Assuming that we define our differences as Time without standard work procedure – Time with standard work procedure, the correct alternative hypothesis is

The correct value of the test statistic is

The P-value associated with the test statistic is

A. 最后一位有效数字
B. 最后一位准确数字
C. 第一位有效数字
D. 第二位有效数字