Catherine finds that in a randomly selected sample of 500 families in her hometown, 45% own at least one computer.

her research shows that there is a total of 35,000 families in her town. which statements are true?

choose 2 answers pls thx.



a: if she collected data for a random sample of 1000 families in her hometown, then that percentage would be a better estimate for the percentage of all 35,000 families that own a computer.

b: to estimate the percentage well, she would need to collect data for all 35,000 families.

c: since her sample was only 500 families, it is not possible that the percentage is a good estimate for the percentage of all 35,000 families that own a computer.

d: since her sample was randomly selected, she can reasonably infer that about 45% of the 35,000 families in her town own at least one computer.

A and D are right

Step-by-step explanation:

Given that Catherine finds that in a randomly selected sample of 500 families in her hometown, 45% own at least one computer.

Since larger sample sizes ensures accurate results, we have A is right

Similarly, if 500 are drawn at random, then the 45% will be accurate

Hence together we can say that

A: If she collected data for a random sample of 1000 families in her hometown, then that percentage would be a better estimate for the percentage of all 35,000 families that own a computer.

D: Since her sample was randomly selected, she can reasonably infer that about 45% of the 35,000 families in her town own at least one computer.

both are right.

why do wages differ across industries

step-by-step explanation :

micro economists are concerned with economics on an industry or individual firm basis.

macro economists are concerned with national and international level

7. 153.86 ft

8. 12.56 ft

9. 78.5 m

10. 379.94 in

11. 132.665 m

12. 12.56 yd

13. 226.865 ft

14. 113.04 ft

15. 63.585 ft

16. 254.34 m

17. 50.24 cm

step-by-step explanation:

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