A sample of 59 night-school students' ages is obtained in order to estimate the mean age of night-school students. x = 25 years. The population variance is 19.
(a) Give a point estimate for μ. (Give your answer correct to one decimal place.)
Point estimate = x/n = 25/59 = 0.4 (rounded to one decimal place)
676
To give a point estimate for μ, we can use the sample mean as an estimate for the population mean. The sample mean (x̄) is given as x = 25 years.
Therefore, the point estimate for μ is 25 years.