mean dividend yield of 8.91%. For the entire Australian stock market, the mean dividend yield is
= 6.4%. If you wanted to test to determine if these data indicate that the dividend yield of all Australian
bank stocks is higher than 6.4%, what is the value of the test statistic? Place your answer, rounded to 3
decimal places, in the blank. For example, 2.345 would be a legitimate entry.
3.586

Question 13 of 20
1.0/ 1.0 Points
Accepted characters
: numbers, decimal point markers (period or comma), sign indicators (-), spaces
(e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation).
NOTE:
For scientific notation,
a period MUST be used as the decimal point marker.
Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
A survey determines that mint chocolate chip is the favorite ice cream flavor of 6% of consumers. An ice
cream shop determines that of 190 customers, 15 customers stated their preference for mint chocolate
chip.
Find the P-value that would be used to determine if the percentage of customers who prefer mint
chocolate chip ice has increased at a 5% level of significance.
P-value:
0.1357
Round your answer to four decimal places as necessary.

Question 14 of 20
1.0/ 1.0 Points
Accepted characters
: numbers, decimal point markers (period or comma), sign indicators (-), spaces

(e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation).
NOTE:
For scientific notation,
a period MUST be used as the decimal point marker.
Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
The ABC battery company claims that their batteries last at least 100 hours, on average. Your experience
with their batteries has been somewhat different, so you decide to conduct a test to see if the company's
claim is true. You believe that the mean life is actually less than the 100 hours the company claims. You
decide to collect data on the average battery life (in hours) of a random sample of n = 20 batteries. Some
of the information related to the hypothesis test is presented below.
Test of H
0
:
100 versus H
1
:
100
Sample mean 98.5
Std error of mean 0.777
Assuming the life length of batteries is normally distributed, what is the p-value associated with this test?
Place your answer, rounded to 3 decimal places in the blank. For example, 0.234 would be a legitimate
entry.
0.034

Question 15 of 20
1.0/ 1.0 Points
Accepted characters
: numbers, decimal point markers (period or comma), sign indicators (-), spaces
(e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation).
NOTE:
For scientific notation,