A high school biology student wishes to test the hypothesis that hummingbird feeders can affect the mean mass of ruby-throated hummingbirds in the area surrounding the feeder. She captures
And weighs several of the hummingbirds near a science museum where several feeders are located.
She obtains the following masses in grams:
The student's hypotheses are:
Use technology to calculate the P-value, then determine whether the data provide sufficient evidence to conclude that the mean mass of the birds in the area surrounding the feeder is greater than the mean mass of the general population. Test at the significance level and assume that the population standard deviation is . Also, assess the strength of the evidence against the null hypothesis.
A) ; since , reject the null hypothesis.
At the significance level, the data do provide sufficient evidence to conclude that the mean mass of the birds in the area surrounding the feeder is greater than the mean mass of the general population. The evidence against the null hypothesis is very strong.
B) ; since , reject the null hypothesis.
At the 5\% significance level, the data do provide sufficient evidence to conclude that the mean mass of the birds in the area surrounding the feeder is greater than the mean mass of the general population. The evidence against the null hypothesis is very strong.
C) ; since , do not reject the null hypothesis.
At the significance level, the data do not provide sufficient evidence to conclude that the mean mass of the birds in the area surrounding the feeder is greater than the mean mass of the general population. The evidence against the null hypothesis is weak or none.
D) ; since , do not reject the null hypothesis.
At the significance level, the data do not provide sufficient evidence to conclude that the mean mass of the birds in the area surrounding the feeder is greater than the mean mass of the general population. The evidence against the null hypothesis is weak or none.
Correct Answer:
Verified
Q1: Traditionally in hypothesis testing the null hypothesis
Q2: Provide an appropriate response.
-Suppose that you wish
Q3: Provide an appropriate response.
-A right-tailed hypothesis test
Q4: A hypothesis test for a population
Q6: Perform a hypothesis test for the population
Q7: Decide whether it appears reasonable to
Q8: Provide an appropriate response.
-A man is
Q9: Perform a one-sample z-test for a
Q10: A high school biology student wishes
Q11: Provide an appropriate response.
-Give an example
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents