Assume that the sample is a simple random sample obtained from a normally distri

Question

Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors Use the table below to find the minimum sample size needed to be 99% confident that the sample standard deviation s is within 1% of Is this sample size practical? Tobe95%confidentthatsis within-1% 596110%120%13 %140% of the value of , the sam ple size n |1920S 768 | 192| 48 21 | 12 | should be at least 0% 8 of the value of , the sample size n |33214 1336| 336 | should be at least 85 | 38 | 22 | 14 Bi The minimum sample size needed is is this sample size practical? A. No, because the sample size should be as small as possible for most applications. 8, Yes because the sample size is small enough to be practical for most applications. ° C. Yes, because the sample size should be as large as possible for most applications. O D. No, because the sample size is excessively large to be practical for most applications Te ok ch Cont Click to select your answer(s) r Suci dia Library 12715/1 11 59pm ype here to search ulo mni @

Explanation / Answer

Solution:-
=> The minimum sample Size needed is 33218

=> B. Yes, because the sample size is small enough to be particul for most applications.

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