Answer:
We reject H₀ , we have enough evidence, women today are taller than in 1990
Step-by-step explanation:
The problem is one tail test. We assume height of women follows normal distribution with σ = 0,5 in.
Then null hypothesis : H₀ ⇒ μ₀ = 63.7
Alternative hipothesis: Hₐ ⇒ μ > 63.7
Significance level 0,05 ⇒ z(c) = 1.645
Statistic z :
z (c) = ( μ - μ₀ ) / (0,5/√45) ⇒ z(c) = (63.9 - 63.7 ) / (0,5 / √45)
z(c) =( 0,2* √45 ) / 0,5
z(c) = 2,68
Evaluation : z(s) > z(c) 2.68 > 1.645
z(c) is in the rejection area we reject H₀
The markup is 1.26 (the amount added is .26)
1.26x (when x is the price Fred buys them for from the manufacturer)
1.26(40)
$50.40 is the retail price
50.4-40
$10.40 is the markup
Answer:
08255555/10000000 this is the answer
2 times 4.95 equals 9.9
16.56 times 6 equals 99.36
add it up and it’s 109.26
Answer:
m= -1
Step-by-step explanation:
When writing an equation of a line, if I know more than one point, does it matter. The first method is to us the slope-intercept equation and plug in values to solve for b. 5. The slope-intecept equation would be y = 34 x + 2 (y−5)=34x−3 (isolate y). What is the equation in point-slope form of the line given (-2,3);