Answer:
lyrics d - 1.782
Step-by-step explanation:
Assume Normal Distribution
we have μ₀ = 40 (from Dullco claims)
And from sample μ = 37.8 and standard deviation of 5.4
random sample n = 18
We have to use t-student for testing the hypothesis
and we have a one tail test (left) since Dullco claims : " at least" meaning (always bigger or at least ) not different.
Then
t (s) =( μ - μ₀) / (σ/√n) ⇒ t (s) = [(37.8 - 40 )* √18 ]/5.4
t (s) = - 1.7284
B I think hope you do good
Answer:
2.49013280357
Step-by-step explanation:
Answer
=21−7⋅k
Step-by-step explanation: −7⋅(k−3))
=−7⋅k+7⋅3
Answer: $65.67
Step-by-step explanation:
Question does not seem complete as it lacks what exactly needs to be done.
I will however assume that it wants the final price of this pair of shoes.
The shoes cost $54.75
A 9% processing fee will be added to the cost:
= 54.75 + ( 1 + 9%)
= $59.68
Then there is a shipping fee of $5.99.
Total is:
= 59.68 + 5.99
= $65.67