FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
At a baseball game, 42 of 65 randomly selected people own an iPod. At a rock concert occurring at the same time across town, 34 of 52 randomly selected people own an iPod. A researcher wantsto test the claim that the proportion of iPod owners at the two venues is different. A 90% confidence interval for the difference in population proportions (game-concert) is (-0.154, 0.138). Which of the following gives the correct outcome of the researcher’s test of the claim?
|
|
Because the confidence interval includes 0, the researcher can conclude that the proportion of iPod owners at the two venues is the same.
|
|
|
Because the confidence interval includes 0, the researcher cannot conclude that the proportion of iPod owners at the two venues is different.
|
|
|
Because the center of the interval is-0.008, the researcher can conclude that a higher proportion of people at the rock concert own iPods than at the baseball game.
|
|
|
Because the confidence interval includes more negative than positive values, the researcher can conclude that a higher proportion of people at the rock concert own iPods than at the baseball game.
|
|
|
The researcher cannot draw a conclusion about a claim without performing a significance test.
|
Explanation:
There is 1 question to complete.