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Posted: **Sun Sep 05, 2021 5:21 pm**

: A Postmix Beverage Machine Is Adjusted To Release A Certain Amount Of Syrup Into A Chamber Where It Is Mixed With Carbon 1 (120.83 KiB) Viewed 470 times

: A Postmix Beverage Machine Is Adjusted To Release A Certain Amount Of Syrup Into A Chamber Where It Is Mixed With Carbon 2 (173.9 KiB) Viewed 470 times

A postmix beverage machine is adjusted to release a certain amount of syrup into a chamber where it is mixed with carbonated water. A random sample of 25 beverages was found to have a mean syrup content of ă 1.10 fluid Ounces and a standard deviation of s = 0.015 fluid Ounces. Find a 95% CI on the mean volume of syrup dispensed. = =
A engineer is analyzing the compressive strength of concrete. Compressive strength is normally distributed with o 2 = 1000 (psi)2. A random sample of 12 specimens has a mean compressive strength of t = 3250 psi. (a) Construct a 95% two-sided confidence interval on mean compressive strength. (b) Construct a 99% two-sided confidence interval on mean compressive strength. Compare the width of this confidence interval with the width of the one found in part (a).