Question

75, 93, 87, 75, 95, 80, 59, 78, 82, 65, 100, 82 A. What is the population mean grade on the test? ?? ?$\bar{x}$ = Round your answer to 1 decimal place as needed. B. Suppose that we use statistical software to select a random sample of size 3 from this population: 82, 75, 78 Compute the sample mean grade on the test. Compare the sample mean and the population mean. ?? ?$\bar{x}$

          75, 93, 87, 75, 95, 80, 59, 78, 82, 65, 100, 82
A. What is the population mean grade on the test?
??
?$\bar{x}$
=
Round your answer to 1 decimal place as needed.
B. Suppose that we use statistical software to select a random sample of size 3 from this
population:
82, 75, 78
Compute the sample mean grade on the test. Compare the sample mean and the
population mean.
??
?$\bar{x}$

75, 93, 87, 75, 95, 80, 59, 78, 82, 65, 100, 82
A. What is the population mean grade on the test?
??
?x̅
=
Round your answer to 1 decimal place as needed.
B. Suppose that we use statistical software to select a random sample of size 3 from this
population:
82, 75, 78
Compute the sample mean grade on the test. Compare the sample mean and the
population mean.
??
?x̅

Added by Nancy O.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Ivan Kochetkov

09/07/2023

Step 1

To find the population mean, we need to add up all the grades and divide by the total number of grades. Population grades: 75, 93, 87, 75, 95, 80, 59, 78, 82, 65, 100, 82 Sum of grades = 75 + 93 + 87 + 75 + 95 + 80 + 59 + 78 + 82 + 65 + 100 + 82 = 991 Total number Show more…

Show all steps

Thanks for your feedback!

75,93,87,75,95,80,59,78,82,65,100,82 A. What is the population mean grade on the test? mu ar{x} = Round your answer to 1 decimal place as needed. B. Suppose that we usis statistical software to select a random sample of size 3 from this population: 82,75,78 Compute the sample mean grade on the test. Compare the sample mean and the population mean. mu ar{x} 75,93,87,75,95,80,59,78,82,65,100,82 A. What is the population mean grade on the test? OF Or Round your answer to 1 decimal place as needed. B. Suppose that we us& statistical software to select a random sample of size 3 from this population: 82,75,78 Compute the sample mean grade on the test. Compare the sample mean and che population mean. HO Or