cest using the 0.05 significance level. What should the researcher conclude? Multiple Choice Reject the null hypothesis; conclude that student household income is below the median. Reject the null hypothesis; conclude that student household income is not equal to the median.

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Median household income in a particular county is $46,250. A researcher is interested to see whether students at the county community college have a
median household income lower than the county overall. She selects 15 students at random and determines that 12 have a household income below the
county median, one has an income equal to the county median, and two have a household income above the county median. She wishes to conduct her
test using the 0.05 significance level. What should the researcher conclude?
Multiple Choice
Reject the null hypothesis; conclude that student household income is below the median.
Reject the null hypothesis; conclude that student household income is not equal to the median.
Fail to reject the null hypothesis.
No conclusion is possible as we need all income levels to do the test.
Transcribed Image Text:Median household income in a particular county is $46,250. A researcher is interested to see whether students at the county community college have a median household income lower than the county overall. She selects 15 students at random and determines that 12 have a household income below the county median, one has an income equal to the county median, and two have a household income above the county median. She wishes to conduct her test using the 0.05 significance level. What should the researcher conclude? Multiple Choice Reject the null hypothesis; conclude that student household income is below the median. Reject the null hypothesis; conclude that student household income is not equal to the median. Fail to reject the null hypothesis. No conclusion is possible as we need all income levels to do the test.
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