A publisher reports that $43 \%$ of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually under the reported percentage. A random sample of 100 found that $35 \%$ of the readers owned a particular make of car. Is there sufficient evidence at the 0.05 level to support the executive's claim?
Step 7 of 7: State the conclusion of the hypothesis test.
Answer
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\(\boxed{\text{There is not enough evidence to support the executive's claim at the 0.05 level.}}\)
Step 1 :State the null hypothesis: \( H_0: p = 0.43 \)
Step 2 :State the alternative hypothesis: \( H_1: p < 0.43 \)
Step 3 :Calculate the standard error: \( SE = \sqrt{ \frac{p(1-p)}{n} } \)
Step 4 :Calculate the z-score: \( z = \frac{\hat{p} - p}{SE} \)
Step 5 :Find the p-value corresponding to the z-score
Step 6 :Compare the p-value to the significance level \( \alpha = 0.05 \)
Step 7 :\(\boxed{\text{There is not enough evidence to support the executive's claim at the 0.05 level.}}\)