Using the MegaStat printout below to compare the mean annual incomes for executives with Undergraduate and High School or less, the following statements can be made:
A) since the 95% confidence interval does not contain the value 0, there is no significant difference in the incomes of these two groups.
B) since the 95% confidence interval does not contain the value 0, there is a significant difference in the incomes of these two groups.
C) since the P-value is small, there is a strong chance of these results happening when there is no significant difference in the incomes of these two groups.
D) since the P-value is small, there is very little chance of these results happening when there is no significant difference in the incomes of these two groups-therefore those executives with an undergraduate degree make more than their counterparts without.
E) since the 95% confidence interval does not contain the value 0, there is a significant difference in the incomes of these two groups; also, since the P-value is small, there is very little chance of these results happening when there is no significant difference in the incomes of these two groups.
Correct Answer:
Verified
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