True or False from each pull-down menu, depending on whether the corresponding s

Question

True or False from each pull-down menu, depending on whether the corresponding statement is true or false.

  ?    True    False      1. If a sample of size 20 is selected, the value of AA for the probability P(tA)=0.01P(tA)=0.01 is 2.528.

  ?    True    False      2. If a sample has 15 observations and a 90% confidence estimate for is needed, the appropriate t-score is 1.341.

  ?    True    False      3. If a sample has 18 observations and a 90% confidence estimate for is needed, the appropriate t-score is 1.740.

  ?    True    False      4. If a sample of size 250 is selected, the value of AA for the probability P(AtA)=0.90P(AtA)=0.90 is 1.651.

Explanation / Answer

1 ) false for (n-1=19) df it should be 2.539

2)false this should be 1.761

3) true

4) true for 90% CI ; A =1.651

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