Answer: The estimated value for population mean rating based on these ten sampled ratings is 7.3 .
Step-by-step explanation:
Given : A random sample of size ten produced the following ratings in the computer games rating example in the last lesson:
12, 5, 2, 4, 1, 4, 18, 10, 1, 16.
Let x denotes any value in the above data.
[tex]{\sum_{i=1}^{10}x_i}{10}=73[/tex]
We know that the sample mean[tex](\overline{x})[/tex] is the best estimate to the population mean[tex](\mu)[/tex].
Sample mean=[tex]\overline{x}=\dfrac{\sum_{i=1}^{n}x_i}{n}[/tex]
Here , n= 10
[tex]\overline{x}=\dfrac{\sum_{i=1}^{10}x_i}{10}[/tex]
[tex]\overline{x}=\dfrac{73}{10}=7.3[/tex]
Therefore , the estimated value for population mean rating based on these ten sampled ratings= 7.3
