Sample size 44 Sample mean 0.86 Population Standard Deviation 0.0021 Sample size
ID: 3159113 • Letter: S
Question
Sample size 44 Sample mean 0.86 Population Standard Deviation 0.0021 Sample size 85 Sample mean = 1091 Sample Standard Deviation- 0.18 Population is not normal Sample size 100 Sample mean 20 1·TInterval 2. Cannot be done 3. ZInterval Sample Standard Deviation = 4 Sample size 12 Sample mean 94 14 Population Standard Deviation Population is normal Sample size 19 Sample mean 0.26 Population Standard Deviation Population is not normal 0.08 Sample size 21 Sample mean = 14.2 Population Standard Deviation 0.18 Population is not normalExplanation / Answer
Since sample size is large , greater than 30 and populaiton standrad deviation is known so ZInterval wil lbe used.
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Since sample size is large , greater than 30 and populaiton standrad deviation is unknown so TInterval wil lbe used.
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Since sample size is large , greater than 30 and populaiton standrad deviation is unknown so TInterval wil lbe used.
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Sample size is not large , not greater than 30 and populaiton standrad deviation is unknown but population is normally distribted so TInterval will be used.
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Sample size is not large , not greater than 30 and populaiton standrad deviation is unknown and population is not normally distribted so option Cannot be used is correct.
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Sample size is not large , not greater than 30 and populaiton standrad deviation is unknown and population is not normally distribted so option Cannot be used is correct.
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