contestada

From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 20.53 with a population standard deviation of 3.23. What is the 95% confidence interval for the amount of time spent on administrative issues?

Respuesta :

Given:

Number of samples n =58

Mean

[tex]\mu=20.53[/tex]

Standard deviation

[tex]\sigma=3.23[/tex]

Required:

Find the confidence interval.

Explanation:

The confidence interval formula is

[tex][\mu-1.96\times\frac{\sigma}{\sqrt{n}},\mu+1.96\times\frac{\sigma}{\sqrt{n}}][/tex]

Substitute the given values in the formula.

Otras preguntas