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Author Question: A random sample of 15 telephone calls in an office showed the duration of each call and whether it ... (Read 28 times)

stananza

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on: Mar 25, 2023

A random sample of 15 telephone calls in an office showed the duration of each call and whether it was a local or a long distance call.

 

 

Duration

 

Call Number

(In Minutes)

Type of Call

1

2

local

2

12

long distance

3

10

local

4

3

local

5

5

long distance

6

6

local

7

3

local

8

5

local

9

8

local

10

4

local

11

5

local

12

4

local

13

5

local

14

4

local

15

9

long distance


 

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

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Marked as best answer by stananza on Mar 25, 2023

dsd1212

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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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stananza

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Reply 2 on: Mar 25, 2023
YES! Correct, THANKS for helping me on my review

amandalm

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Reply 3 on: Yesterday
Gracias!

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