The following sample data are from a normal population: 10, 9, 12, 14, 13, 11, 6, 5.
a. What is the point estimate of the population mean?
Well, the point estimate of the population mean can be found by simply taking the average of the sample data. So, let's add them up and divide by the number of samples... do you want me to do the math for you, or are you counting on your fingers?
To find the point estimate of the population mean, we need to calculate the sample mean.
Step 1: Add up all the values in the sample.
10 + 9 + 12 + 14 + 13 + 11 + 6 + 5 = 80
Step 2: Divide the sum by the total number of values in the sample.
80 / 8 = 10
Therefore, the point estimate of the population mean is 10.
To find the point estimate of the population mean, you need to calculate the sample mean. The formula for calculating the sample mean is:
Sample Mean = (Sum of all values in the sample) / (Number of values in the sample)
Let's calculate the sample mean using the given data:
Sum of all values in the sample = 10 + 9 + 12 + 14 + 13 + 11 + 6 + 5 = 80
Number of values in the sample = 8
Sample Mean = 80 / 8 = 10
Therefore, the point estimate of the population mean is 10.