Answer:
CI ≈ (173.8 < μ < 196.2)
Step-by-step explanation:
We are told that laboratory tested twelve chicken eggs. Thus;
n = 12
Mean; x¯ = 185 mg
S.D; s = 17.6 mg
DF = n - 1 = 12 - 1 = 11
We have a 95% confidence level. Thus; α = 0.05
Since n < 30, we will use t-sample test.
Thus, from t-table attached at 95% Confidence level and DF = 11, we have;
t = 2.201
Thus,formula for Confidence interval is;
CI = (x¯ - t(s/√n)) < μ < (x¯ + t(s/√n))
CI = (185 - 2.201(17.6/√12)) < μ < (185 + 2.201(17.6/√12))
CI = (185 - 11.1825) < μ < (185 + 11.1825)
CI = (173.8175 < μ < 196.1825)
CI ≈ (173.8 < μ < 196.2)
Answer:
Its D
Step-by-step explanation:
The brackets show tht 3 is multiplied with 7 AND M.
<em><u>Stranger</u></em><em><u> </u></em><em><u>things</u></em><em><u> </u></em><em><u>fan</u></em><em><u> </u></em><em><u>huh</u></em><em><u>?</u></em><em><u> </u></em>
<em><u>Same</u></em><em><u> </u></em><em><u>here</u></em><em><u> </u></em><em><u>;</u></em><em><u>)</u></em><em><u> </u></em>
Need mas
Find volume
- πr²h
- π(6)²(18)
- 36(18)π
- 2034.7cm³
Mass
As volume is same
Divide their densities to find ratio
- Gold /Silver
- 19.32/10.5
- 1.84 times heavier is gold
|7 - x| >= 1
When solving for x inside an absolute value, you can set up two equations. One for the positive and one for the negative(since we’re dealing with absolutes.
We end up with:
7 - x >= 1
7 - x <= -1 (inequalities’ signs flip when multiplying or dividing by a negative.)
7 - x >= 1
7 - 1 >= x
X <= 6
7 - x <= -1
7 + 1 <= x
X>= 8
X: (-infinity, 6]U[8, infinity)
