Answer :
There is sufficient evidence at the 0.02 level of significance that the percentage is over 62% for hypothesis.
Given that,
Over 62% of a newsletter publisher's subscribers, in their estimation, own a Rolls-Royce. A potential advertiser wants to verify this claim for marketing purposes. The advertiser decides to reject the null hypothesis following a test with a significance threshold of 0.02 after executing the analysis.
We have to find what is the verdict in relation to the publisher's assertion.
We know that,
First we have to write the null hypothesis and alternative hypothesis for the hypothesis test.
H₀:P=0.62
H₁:P>0.62
At 0.02 level of significance, rejecting H₀ then accepting H₁.
That is sufficient evidence that percentage over 62%.
Therefore, there is sufficient evidence at the 0.02 level of significance that the percentage is over 62% for hypothesis.
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