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sleet_krkn [62]
3 years ago
13

25 graduating seniors form Stellar High School are randomly selected. A mean GPA of 3.42 is calculated with a margin of error ±0

.38 for a 95% confidence interval.
What is the interval estimate of the population mean?

A) 2.87 < μ <3.63
B) 3.04 < μ <3.80
C) 3.04 > μ > 3.80
D) 3.06 > μ > 3.78

Answer is B.
Mathematics
1 answer:
Fantom [35]3 years ago
3 0

Answer: it is b

Step-by-step explanation:

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Jada typically earns$1545 each month, of which $47.20 is spent on electricity. Whick percent of jadas earnings are spent on elec
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The equation is asking how much out of Jada's total budget (1545) is spent on electricity a month (47.20).
write this as a fraction 47.20/1545
type into calculator and you get .03055
multiply that by 100 to get it as a percent. you get 3.055%
now round that to the nearest tenth and you get 3.1%
answer 3.1%

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A city's population is currently 100,000. If the population doubles every 80 years, what will the population be 160 years from n
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The ratio of feet to yards is 3 to 1. Reyna threw a ball 30 feet. How many yards did she throw it?
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                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ She threw the ball 10 yards.

The ratio we have is 3:1. Right now, we know she threw 30 feet. The relationship between the 3 and 30 is multiplying by 10. If you are multiplying the feet by 10, you have to multiply the yards by 10. When you multiply 1 x 10, you get 10. So the ration is 30:10 and she threw 10 yards.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

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