Saturday

January 31, 2015

January 31, 2015

Posted by **Tyler** on Thursday, December 19, 2013 at 4:21am.

42

51 43 48 41 57 54

39 45 48 45 39 46

Construct a 95% confidence interval to estimate the population mean.

Round the intermediate values to 2 decimal places. Round your answers to 2 decimal places, the tolerance is +/-0.05.

I do not understand how to find the 's' for the estimate of standard deviation from the sample.

n=13

xbar=46

df= 12

alpha/2= 0.025

Therefore, t= 2.179

And I am stuck...

- Stats -
**Kuai**, Thursday, December 19, 2013 at 2:37pmn=13

xbar=46

df= 12

alpha/2= 0.025

Therefore, t= 2.179

Sd = 5.5377

t = 2.179

(42.65, 49.35)

Z = 1.96

(42.99,49.01)

**Answer this Question**

**Related Questions**

Statitic - following data values are a simple random sample from a population ...

business statistics - the following data values are a simple random sample form ...

MRU - suppose a population of nursing students heights is normally distributed ...

statistics - Based on data from the National Health and Nutrition Examination ...

math - The ages of a population of 300 is normally distributed, with a mean of ...

statistics - 1- The ages of a population of 300 is normally distributed, with a ...

statistics - Suppose that SAT scores among U.S. college students are normally ...

stats. - The amount that airlines spend on food per passenger is normally ...

stats - The amount that airlines speed on food per passenger is normally ...

statistics - An IQ test was administered to a random sample of 26 mental ...