Match the TI-84 PLUS calculator command that would be used to find the confidenc

Question

Match the TI-84 PLUS calculator command that would be used to find the confidence interval in each case. If the confidence interval cannot be constructed, choose "Cannot be done" Sample size 21 Sample mean 142 Population Standard Deviation-0,18 Population is not nomal Sample size- 85 Sample mean-1091 Sample Standard Deviation-0.18 Population is not nomal Sample size 44 Sample mean 0.86 Population Standard Deviation-0.0021 . Tinterval 2. Cannot be done Sample size 100 Sample mean 20 3. Zinterval Sample Standard Deviation 4 Sample size 12 Sample mean-94 Population Standard Deviation-14 Population is normal Sample size-19 Sample mean-0.26 Population Standard Deviation Population is not normal 0,08

Explanation / Answer

Sample size = 21 , Sample mean = 14.2 , Population standard deviation = 0.18 , Population is not normal Cannot be done . Sample size = 85 , Sample mean = 1091 , Sample standard deviation = 0.18 , Population is not normal Cannot be done Sample size = 44 , Sample mean = 0.86 , Population standard deviation = 0.0021 Z interval Sample size = 100 , Sample mean = 20 , Sample standard deviation = 4 T interval Sample size = 12 , Sample mean = 94 , Population standard deviation = 14 , Population is normal Z interval Sample size = 19 , Sample mean = 0.26 , Population standard deviation = 0.08 , Population is not normal Cannot be done

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