An opinion poll is used to ask a random sample of parents whether they would support...
An opinion poll is used to ask a random sample of parents whether they would support a school rule against using cell phones during school hours. The principal of a local school believes that more than 78% of all parents favor such a rule. What would be the null and alternative hypotheses that would be used to test this claim?
Homework Answers
Solution :
This is the right tailed test .
The null and alternative hypothesis is
H0 : p =0.78
Ha : p > 0.78
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