百度试题 结果1 题目 What is the confidence interval where the mean is 42.486 and the margin of error is 3.226? 相关知识点: 试题来源: 解析 to 45.71 反馈 收藏
题目What is the confidence interval (align*) x ± t_(α/2) (s/(√n)) (align*) where the mean is 42.486 and the margin of error is 3.226?相关知识点: 试题来源: 解析 (align*)x ± 3.226 = 39.26(align*) to 45.71 反馈 收藏 ...
What is the 95% confidence interval for the gross margin in the first quarter of 2004?A. 0.197 to 0.305.B. 0.158 to 0.354.C. 0.168 to 0.240. 正确答案:B 分享到: 答案解析: The forecast for the following quarter is 0.155 + 0.240(0.240) + 0.168(0.260) = 0.256. Since the standard er...
When we report these values, we can either use just that value we found or we can create a confidence interval.Answer and Explanation: A point estimate is a measure of the exact value that we got from our sample. For instance, we can say that we measured the ...
Standard Deviation Equation, Formula & Examples from Chapter 13 / Lesson 4 217K The standard deviation of a data set is a measurement of how close, in aggregate, its values are to the mean. The baseline from which this distance is measured is the mean o...
百度试题 题目What is the 95% confidence interval for the gross margin in the first quarter of 2004? A. 0.197 to 0.305. B. 0.158 to 0.354. C. 0.168 to 0.240.相关知识点: 试题来源: 解析 B 略 反馈 收藏
What is the 95% confidence interval for a population mean with a known mean of 96, a known variance of 9, and with a number of observations of 400?A. 95.613 to 96.387.B. 95.706 to 96.294.C. 95.118 to 96.882. 正确答案:B 分享到: 答案解析: Because we can compute the population stan...
Confidence Interval and Odds Ratio: What Is It and How Should It Be Interpreted?doi:10.1097/NUR.0000000000000787Sandra L.,SiedleckiClinical nurse specialist: CNS
What is the critical value for the 95% confidence interval for a two tailed test and one tailed test? What critical value t* would you use for a 95% confidence interval based on n = 18 observations? What are the critical value ...
So, we take a mean of these values to obtain the z value at this point.$\Rightarrow \dfrac{1.64+1.65}{2}=1.645$ Hence, the z value at the 90 percent confidence interval is 1.645. Let us consider the second case for which the given confidence level is 95 pe...