Question
In: Statistics and Probability
The company you work for provides you with 20 random wish bone samples to calculate the...
The company you work for provides you with 20 random wish bone
samples to calculate the yield strength of a material used in your
production proccess. The data calculated is provided below. The
steel you recieve is reported to have a mean of 420 with a standard
deviation of 5 MPa.
yield_strength =
c(444,435,465,423,425,470,417,418,410,399,425,423,459,465,420,423,417,404,420,451)
a
Can you run a HT with this data? Why?
b
Assuming you can, calculate the standard error and margin of error
with an alpha level of 5%
c
Create a 95% CI for your data.
d
You are tasked with determining if the steel you are getting is to
be considered “good” product. What is the null and alternative
hypothesis?
e
Calculate the Z score and p value. Interpret the results.
2
Using the yield strength data from 1. You belive that the yield
strength for the calculated data is greater than that of the
results reported from the manufacturer.
a
What is null and alternative hypothesis?
b
Calculate the z score and p value. Interpret the results.
Solutions
Expert Solution
I HOPE I WAS HELPFUL AND HAVE CLEARED YOUR DOUBTS.
THANKYOU.
orchestra answered 1 year agoRelated Solutions
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