Answer:
0.00135
Step-by-step explanation:
Given that a textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms.
H0: µ = 12 against H1: µ < 12
n =4
std error =
Mean difference
Test statistic t = mean diff/std error = -3
p value=0.00135 <0.05 our significance level
So reject H0
There is evidence to prove that mean is less than 12 kg.
You would do 3.5 * 16 = $56
Your answer is A. $56
Hope I helped :)
Answer:
y = 6x
Step-by-step explanation:
To write an equation, find the unit rate or constant of proportionality (k).
Using a point on the line, (3, 18):
Constant of proportionality, k = y/x = 18/3
k = 6
To write an equation, substitute k = 6 into y = kx.
Thus:
y = 6x
Answer:
24p
Step-by-step explanation:
£1 - £0.52 = £0.48 ← cost of 2 oranges
cost of 1 orange = £0.48 ÷ 2 = £0.24
The correct answers are A and C