<h2>
Answer with explanation:</h2>
As per given , we have

Since , alternative hypothesis is right tailed, so the test is a right tailed test.
n= 1987
Proportion of adults believe that rudeness is a worsening problem : 
Test statistic : 

(since , the normal curve takes values of z from -7 to 7, so we use critical value to draw conclusion.)
The critical value for a significance level of 0.005= 1.645
Since , absolute test statistic value (12.09) is greater than the critical value (1.645), it means there is statistical significance and so we reject the null hypothesis.
B

5,000
because the library has more than or = to 5000 books.
Answer:
It's B
Step-by-step explanation:
Because I randomly guessed and that was the answer.
Answer:
= 7.5 in^3, <u>if the question is as interpreted below</u>.
Step-by-step explanation:
Is the question to determine the volume of a container with dimensions 2 x 2.5 x 1.5 (all inches)?
If so, Volume = (2)*(2.5)*(1.5)
= 7.5 in^3