Answer:
H0 : μ = 60000
H1 : μ ≠ 60000
Test statistic = 3.464
Step-by-step explanation:
Given :
Sample mean salary, xbar = 80000
Sample standard deviation, s = 10000
Population mean salary , μ = 60000
Sample size, n = 3
Hypothesis :
H0 : μ = 60000
H1 : μ ≠ 60000
The test statistic :
T = (xbar - μ) ÷ (s/√(n))
T = (80000 - 60000) ÷ (10000/√(3))
T = 20000 / 5773.5026
T = 3.464
The Decison region :
If Tstatistic >Tcritical
Tcritical at 10%, df = 2 ; two - tailed = 2.9199
Tstatistic > Tcritical ; He
Answer:
Siobhan makes $9.18 per hour.
Step-by-step explanation:
9*20% is 1.8 so add that to 9 to get 10.80 then times 10.80 by 15% to get 1.62 so you subtract 1.62 from 10.80 to get $9.18
ANSWER
$12.56
EXPLANATION
Orange costs $3.42 for 9 pounds.
We want to know how much it would cost to get 12 pounds of oranges.
To do this, we will simply compare and make our unkown x:
$3.42 = 9 pounds
x = 12 pounds
Now, we cross multiply:
=> x * 9 = 3.42 * 12
At this rate, 12 pounds will cost $4.56.
Answer:
10x+20y= 350
Step-by-step explanation:
Add the decimal. 3.50
Answer:
37.625 square yards or 37⅝ square yards
Step-by-step explanation:
Area of the triangle = ½*base*height
Where,
base = 10¾ yd = 10.75 yds
height = 7 yds
Substitute the value of each variable into the equation:
Area = ½*10.75*7
Area = 37.625 square yards or 37⅝ square yards
