We are interested in whether the cost of children’s educational computer software is significantly different, on...
We are interested in whether the cost of children’s educational computer software is significantly different, on average, from children’s entertainment software children’s entertainment software. Fifteen educational software titles were randomly picked from a catalog. The mean cost was $30 with a standard deviation of $4. Fifteen entertainment software titles were randomly picked from the same catalog. The mean cost was $34 with a standard deviation of $8. Is the cost of children’s educational software significantly different, on average, from children’s entertainment software?
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no because |tcomputed| > |tcritical| |
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yes because |tcomputed| < |tcritical| |
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no, because p > alpha |
||
|
yes, because p < alpha. |
Homework Answers
here level of signficance not given : if it is 0.05:
Correct option is:
no, because p > alpha
(Note: if alpha =0.1 , then yes because p< alpha)
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We are interested in whether the cost of children’s educational
computer software is significantly different, on...
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We are interested in whether children’s educational computer software costs less, on average, than children’s entertainment software. Thirty-six educational software titles were randomly picked from a catalog. The mean cost was $31.14 with a standard deviation of $4.69. Thirty-five entertainment software titles were randomly picked from the same catalog. The mean cost was $33.86 with a standard deviation of $10.87. Decide whether children’s educational software costs less, on average than children’s entertainment software. The distributions are only slightly skewed, but...
We are interested in whether children’s educational computer software costs less, on average, than children’s entertainment...
We are interested in whether children’s educational computer software costs less, on average, than children’s entertainment software. Thirty-six educational software titles were randomly picked from a catalog. The mean cost was $31.14 with a standard deviation of $4.69. Thirty-five entertainment software titles were randomly picked from the same catalog. The mean cost was $33.86 with a standard deviation of $10.87. Decide whether children’s educational software costs less, on average than children’s entertainment software. The distributions are only slightly skewed, but...
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Please Help me with this Questions
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