I need help with this question please! Given the same sample statistics, which l

Question

I need help with this question please! Given the same sample statistics, which level of confidence would produce the widest confidence interval? Explain your reasoning. 90% 95% 98% 99% Fill in the blanks with one of the following: increases, decreases, or stays the same where E = z_c sigma/Squareroot n As the sample size (n) increases, the margin of error (E) ____ As the confidence level (C) increases, the margin of error (E) _____ As the standard deviation (sigma) increases, the margin of error (E) ____

Explanation / Answer

(1) Ans: 90% (As the confidence level decreases, width of the interval decreses).

(2) (a) decreases (inverse proportion)

(b) increases (direct proportion)

(c) increases (direct proportion)

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---