The selling price will be $192
$120 x 60% = $72 markup
$120 + $72 = $192
Answer:
h=$65/13
Step-by-step explanation:
So he has $85
Now the remaining amount he needs is $65
And in every 13h he produces the $65
So to find his hourly earning is h=$65/13
So the equation is
h = $65/13
Answer: 21 . . . . . .
Credit to the person below-
Answer:
Reject H0
Step-by-step explanation:
Given :
H0: The frequencies are equal. H1: The frequencies are not equal
Category f0 A 10 B 30 C 30 D 10
Total f0 = (10 + 30 + 30 + 10) = 80
Expected frequency is the same for all categories :
Expected frequency = 1/4 * 80 = 20
χ² = Σ(observed - Expected)² / Expected
χ² = (10-20)^2 / 20 + (30-20)^2 /20 + (30-20)^2 / 20 + (10-20)^2 / 20
χ² = (5 + 5 + 5 + 5) = 20
Pvalue = 0.00017
Pvalue < α
