Answer:
(0.392 ; 0.508)
Step-by-step explanation:
Given that :
p = 45% = 0.45
α = 1 - 90% = 0.1
Zα/2 = Z0.01/2 = Z0.05 = 1.645 (from Z standard table).
Using the relation :
p ± Z0.05*sqrt((p(1-p))/n)
p ± 1.645 * sqrt(0.45(0.55)/200)
p ± 1.645 * sqrt(0.0012375)
p ± 1.645 *0.0351781
0.45 - (1.645 * 0.0351781) = 0.3921320255
0.45 + (1.645 * 0.0351781) = 0.5078679745
(0.392 ; 0.508)
Answer:
$5 per hour
Step-by-step explanation:
60/12= 5
Step-by-step explanation:
1. 4/10 + 15/10
The two fractions have like denominators so you can add the numerators.
Then:
4+15/10=19/10
This fraction cannot be reduced.
The fraction
19/10
is the same as
19÷10
Convert to a mixed number using
long division for 19 ÷ 10 = 1R9, so
19/10=19/10
Therefore:
4/10+15/10=1 9/10
2. 50/20+60/20=5 1/2
3. 
4.
5.
6.
7.
8.
Answer:
The slope is -3
Step-by-step explanation:
Answer:
98275
Step-by-step explanation:
5=6