Consider a Normally Distributed Population

question 41

Multiple Choice

Consider a normally distributed population.Which two of the following actions will result in the greatest increase in the width of a confidence interval for the mean?
(i) increasing the confidence level
(ii) decreasing the confidence level
(iii) increasing the sample size
(iv) decreasing the sample size
(v) decreasing the standard deviation

• A)(i)and (iii)
• B)(ii)and (iv)
• C)(ii)and (iii)
• D)(i)and (v)
• E)(i)and (iv)

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