Answer:
a. Identify the population of interest in this study.
- all the population of the country
b. Identify the sample for the study.
- 50 adults (the ones that were surveyed)
c. Identify the parameter of interest in the study.
- the parameter of interest is the people that believe that coffee shops are overpriced
d. Find and interpret a 95% confidence interval for the parameter of interest.
z score for a 95% confidence level = 1.96
margin of error (E) = z score x √{[0.4(1 - 0.4)] / 50} = 1.96 x 0.069282 = 0.13579
95% confidence level interval:
0.4 - 0.13579 = 0.26421
0.4 + 0.13579 = 0.53579
- 95% confidence interval (0.26421 , 0.53579)
<u>Answer:</u>
<u>Step-by-step explanation:</u>
He has asked me to move the finish line 0.25 km forward
Now,
we know that
1 km = 0.621371 mile
⇒ 0.25 km = 
mile
= 
feet
(since 1760 yards = 1 mile and 3 feet = 1 yard)
= 820.20972 feet
. (Answer)
Answer: C
Step-by-step explanation:
I just took the test
Answer:
Y=x^2-2x-8
Step-by-step explanation:
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Answer:
Number 2 is A
Number 3 is (5, -4)
Number 4 is (5, -4)
Number 5 is (4, 2)
Step-by-step explanation:
