A. The weights of weekly plastic waste from a random sample of 50 American households resulted in a mean of 1.91 pounds.
Posted: Wed May 11, 2022 4:40 pm
A. The weights of weekly plastic waste from a random
sample of 50 American households resulted in a mean of 1.91 pounds.
You may assume the population standard deviation is 1.07 pounds.
Test the hypothesis that the mean weekly plastic waste is greater
than 1.8 pounds at the 5% level of significance.
B. Find the linear regression equation for the
following data summaries pertaining to the residual chlorine
(y, measured in parts per million) in a swimming pool at various
times (x, measured in hours) after it has been
treated.
Σx = 40 Σy = 6 Σxy = 45
Σx2 = 360 Σy2 = 7.44 n = 5
Please include all steps and work for both A and B!
sample of 50 American households resulted in a mean of 1.91 pounds.
You may assume the population standard deviation is 1.07 pounds.
Test the hypothesis that the mean weekly plastic waste is greater
than 1.8 pounds at the 5% level of significance.
B. Find the linear regression equation for the
following data summaries pertaining to the residual chlorine
(y, measured in parts per million) in a swimming pool at various
times (x, measured in hours) after it has been
treated.
Σx = 40 Σy = 6 Σxy = 45
Σx2 = 360 Σy2 = 7.44 n = 5
Please include all steps and work for both A and B!