a)
H0: <= 35
Ha: > 35
b)
Test statistics
z = - / ( / sqrt(n) )
= 36 - 35 / (4 / sqrt(100) )
= 2.5
p-value = P( Z > z)
= P( Z > 2.5)
= 0.0062
c)
Since p-value < 0.05 significance level, we have enough evidence to support the claim.
(17) Homeowners claim that the mean speed of automobiles traveling on their street is greater than...
Test the claim of homeowners that the mean speed of automobiles traveling on their street is greater than the speed limit of 35 miles per hour. A random sample of 24 automobiles has a mean speed of 36 miles per hour with as standard deviation of 4 miles per hour. [2 points] Give the null and alternate hypotheses. [5 points] What statistical test on the calculator will you use? ______________________ Give the test statistic. _______________________ Give the P-value. ________________________
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2. Homeowners claim that the mean speed of automobiles greater than the speed limit of 35 miles per hour. A random a mean speed of 36 miles per hour with as standard deviation of 4 want to determine if there is enough evidence to reject the homeowner their street is sample of 24 automobiles has miles per hour. You s claim. 12 points] Give the null and alternate hypotheses. test on the calculator will you use? [5 points) What statistical...
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