PLEASE HELP 10 POINTS
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Answer:
Step-by-step explanation:
Hello!
To make a CI for the population mean you need to make the following assumptions:
- The variable should have a normal distribution (since the population mean is a parameter of this distribution, you need it to study the mean)
-The observations should be independent.
Here I've calculated the CI using a 95% confidence level:
x[bar]±*(δ/√n)
[281±1.96*(72/√26)]
[190.32;245.67]days
I hope you have a SUPER day!