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Author Question: A random sample of nine telephone calls in an office provided the following information.Call ... (Read 116 times)

lrhoads

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on: Mar 25, 2023

A random sample of nine telephone calls in an office provided the following information.

 


Call Number

Duration
(In Minutes)


Type of Call

1

3

local

2

8

long distance

3

4

local

4

3

local

5

5

long distance

6

6

local

7

3

local

8

5

local

9

8

local


 

a.Determine the point estimate for the average duration of all calls.
b.What is the point estimate for the standard deviation of the population?
c.Determine the standard error of the mean.
d.What is the point estimate for the proportion of all calls that were long distance?
e.Determine the standard error of proportion.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by lrhoads on Mar 25, 2023

SphnxKickin

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Reply #1 on: Mar 25, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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lrhoads

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Reply 2 on: Mar 25, 2023
Excellent

Dominic

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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