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Zielflug [23.3K]
4 years ago
14

Use the given information to find the minimum sample size required to estimate an unknown population mean.

Mathematics
2 answers:
Harrizon [31]4 years ago
4 0

Answer:

c or b

Step-by-step explanation:

trapecia [35]4 years ago
4 0

Answer:

C) 94

Step-by-step explanation:

Margin of error = critical value × standard error

ME = CV × SE

Assuming n > 30, we can approximate CV with a normal distribution.  At P = 95%, CV = 1.96.

SE = σ / √n

SE = 593 / √n

Therefore:

120 = 1.96 × 593 / √n

n = 94

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Is the expression 70 – (4 • 15) a difference of three terms, a product of two terms, or a difference of two terms?
lara31 [8.8K]

Answer: A difference of 2 terms, and the answer is 10.

Step-by-step explanation:

6 0
3 years ago
Write y =-0.4x + 0.3 in standard form using integers
Novay_Z [31]
Using the formula, rewrite in standard form.
0.4x + y = 0.3
Hope this helps! :)
5 0
4 years ago
7/10 of 120 and show work pls
slavikrds [6]
When it says 7/10, it actually means 70%, so you have to find 70% of 120.
<span>
70 % of 120 
= 70% x 120 
= (70/100) x 120 
= (8400/100) 
= 84

Answer: 84</span>
8 0
3 years ago
You have $2000 to deposit for 7 years and two account options. The first earns you simple interest at a rate of 4% and the secon
pogonyaev

Answer:

First account (simple interest)

Step-by-step explanation:

The amount of interest earned by the first account is ...

I = Prt = $2000·0.04·7 = $2000·0.28 = $560

The amount in the second account at the end of 7 year is ...

FV = P·(1+r)^t = $2000·1.02^7 = $2297.37

so you have earned $297.37 in interest on the second account.

$560 is more than $297, so the First Account (simple interest) earns more money.

6 0
3 years ago
The height of Atlas V rocket used for space lifts was 205 feet. What is the height of a model of Atlas V rocket if the scale fac
KengaRu [80]

Answer: 6.4 feet

Step-by-step explanation:

Height of Atlas V rocket = 205 feet

Ratio of the model = 1:32 = 1/32

Model / Real = 1/32

Since Real height = 205, we put it into the equation and this will be:

Model / Real = 1/32

Model / 205 = 1/32

Model × 32 = 205 × 1

Model = 205/32

Model = 6.4 feet

The height of the model is 6.4 feet.

7 0
3 years ago
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