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Author Question: The flashlight batteries produced by one of the northern manufacturers are known to have an average ... (Read 60 times)

tspaw0811

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on: Mar 25, 2023

Question 1

The closing stock price of Ahmadi, Inc. for a sample of 10 trading days is shown below.

 

Day

Stock Price

1

84

2

87

3

84

4

88

5

85

6

90

7

91

8

83

9

82

10

86


For the above sample, compute the following measures.
 

a.The mean
b.The median
c.The mode
d.The variance
e.The standard deviation
f.The range

 



Question 2

The flashlight batteries produced by one of the northern manufacturers are known to have an average life of 60 hours with a standard deviation of 4 hours.  Use Chebyshev’s theorem to answer the following questions.

a.At least what percentage of flashlights will have a life of 54 to 66 hours?

b.

At least what percentage of the batteries will have a life of 52 to 68 hours?

c.

Determine an interval for the batteries lives that will be true for at least 80% of the batteries.  (Hint:  First compute the Z-score.)

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by tspaw0811 on Mar 25, 2023

ludadtpb

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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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tspaw0811

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Reply 2 on: Mar 25, 2023
Great answer, keep it coming :)

daiying98

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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