Answer: (0.5496, 0.5754)
Step-by-step explanation:
The confidence interval for population proportion (p) is given by :-
, where
= Sample proportion , n= sample size , z*= Critical z-value.
Let p be the proportion of all college students who are in favor of banning Hawaiian shirt.
Given, A random sample of 4000 college students yielded 2250 who are in favor of banning Hawaiian shirts.
i.e. n=4000

z-value for 90% confidence level is 1.645
Now , 90% confidence interval for p would be :


Hence, the required 90% interval = (0.5496, 0.5754)
Answer:
unknown
Step-by-step explanation:
15 times 3.14
65 degrees because then it adds to 180 degrees
Answer:
the answer is 0.012, terminating
Step-by-step explanation:
move the decimal place three places to the left
since it is not repeating it is terminating
Answer:
12.5
Step-by-step explanation:
7.5+5=12