Question

The Wind Mountain archaeological site is located in southwestern New Mexico. Wind Mountain was home to an ancient culture of prehistoric Native Americans called Anasazi. A random sample of excavations at Wind Mountain gave the following depths (in centimeters) from present-day surface grade to the location of significant archaeological artifacts†. 85 45 120 80 75 55 65 60 65 95 90 70 75 65 68 A button hyperlink to the SALT program that reads: Use SALT. (a) Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviation s. (Round your answers to four decimal places.)

s = cm

Answer 1

To find the sample mean and sample standard deviation, you can use a calculator with the mean and sample standard deviation keys. The sample mean of the depths is 75.4000 cm, and the sample standard deviation is 15.2037 cm.

Step-by-step explanation:

To find the sample mean and sample standard deviation, we will use a calculator with mean and sample standard deviation keys. First, calculate the mean:

x = (85 + 45 + 120 + 80 + 75 + 55 + 65 + 60 + 65 + 95 + 90 + 70 + 75 + 65 + 68) / 15 = 75.4000

Next, calculate the sample standard deviation:

s = sqrt(((85 - 75.4000)^2 + (45 - 75.4000)^2 + ... + (68 - 75.4000)^2) / (15 - 1)) = 15.2037 cm