According to the situation described, the appropriate set of hypotheses for her significance test is given by:
.
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At the null hypothesis, it is tested if the proportion is still of 42%, that is:
.
At the alternative hypothesis, it is tested if the proportion is now lower, that is:
.
Hence, the the appropriate set of hypotheses for her significance test is given by:
.
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More can be learned about an hypothesis test at brainly.com/question/26454209