Answer:
(22.74 ; 27.26)
Step-by-step explanation:
The confidence interval relation is stated as :
Mean ± Zcritical * σ/sqrt(n)
Mean = 25
σ = 6
The Zcritical at 95% = 1.96
Hence,
25 ± 1.96 * (6/sqrt(27))
25 ± 1.96 * 1.1547005
Lower boundary :
25 - (1.96 * 1.1547005) = 22.73678702
Upper boundary :
25 + (1.96 * 1.1547005) = 27.26321298
(22.74 ; 27.26)
Answer:
$30
Step-by-step explanation:
She paid $24.72 for the 2 packages of chicken because $12.36×2=$24.72.
She paid $0.99 for the broccoli because $1.98×1/2=$0.99.
She paid $3.49 for the milk because one gallon of milk costs $3.49.
$24.72+$0.99+$3.49=$29.20.
$29.20+$0.80=$30.00.
She used $30.00 to pay for the items.
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The equation of this line is y - (-3) = (1/2)( x - 6 ), <span>which is equivalent to y + 3</span> = (1/2)( x - 6 );
Answer:
x ≤ 10
Step-by-step explanation:
The sign that I used means less than or equal to. So that means that there can either be 10 people exactly, or less than 10 people.
