Test the claim below. Identify the null hypothesis, alternative hypothesis, test
ID: 3292431 • Letter: T
Question
Test the claim below. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim.
The health of the bear population in a national park is monitored by periodic measurements taken from anesthetized bears. A sample of
52
bears has a mean weight of
172.0
lb. Assuming that
sigma
is known to be
117.0
lb, use a
0.05
significance level to test the claim that the population mean of all such bear weights is greater than
145
lb.
A,Calculate the test statistic.
B, find the p-value.
Explanation / Answer
The statistical software output for the given problem is:
One sample Z summary hypothesis test:
: Mean of population
H0 : = 145
HA : > 145
Standard deviation = 117
Hypothesis test results:
Hence,
A) Test statistic = 1.66
B) p - Value = 0.048
Mean n Sample Mean Std. Err. Z-Stat P-value 52 172 16.224981 1.6641006 0.048Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.