9. 37 packages an reived from ups. the packages have a mean of 170 lbs & a standard deviation of 33 pounds, what is the 951 confidence interval for the tre mean weight of all packages recieved by the parcel service? also state margin of error,

Confidence interval   to

Margin of error is 10.633

Step-by-step explanation:

Confidence interval formula :

Mean =

Standard deviation =

Sample size = n = 37

Confidence interval = 95%

z value fro 95% confidence level is 1.96

Substitute the values in the formula :

Confidence interval  

Confidence interval  

Confidence interval   to

Confidence interval   to

Formula of margin of error :

Margin of error :

                          = 

Hence Confidence interval   to  and Margin of error is 10.633

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step-by-step explanation:

ewd

i dont get the question

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