7) Pressure values measured by various probes in the test section of a wind tunnel to obtain the freestream velocity have been given in the table below. The researcher who made the measurements concluded that the 8th reading had a value of -3.625 as the "deviation from the mean" and eliminated the data point based on the Chauvenet criterion. However, she later realized that she used the factor "1/n" instead of "1/(n-1)" in the calculation of standard deviation, which was used for data sets with a total number of data points less than 20. Find the value of the 8th reading and determine if the elimination is actually necessary.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
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Chapter1: Combinatorial Analysis
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Reading
Pressure
[mmH20]
397
1
2
398
397
7) Pressure values measured by various probes in the test section of a wind
tunnel to obtain the freestream velocity have been given in the table below.
The researcher who made the measurements concluded that the 8th reading
4
398
397
396
had a value of -3.625 as the "deviation from the mean" and eliminated the data
7
395
point based on the Chauvenet criterion. However, she later realized that she
used the factor "1/n" instead of "1/(n-1)" in the calculation of standard
deviation, which was used for data sets with a total number of data points less
than 20. Find the value of the 8th reading and determine if the elimination is
actually necessary.
8.
?
9
398
10
398
11
399
12
398
13
399
14
396
15
399
16
400
Transcribed Image Text:Reading Pressure [mmH20] 397 1 2 398 397 7) Pressure values measured by various probes in the test section of a wind tunnel to obtain the freestream velocity have been given in the table below. The researcher who made the measurements concluded that the 8th reading 4 398 397 396 had a value of -3.625 as the "deviation from the mean" and eliminated the data 7 395 point based on the Chauvenet criterion. However, she later realized that she used the factor "1/n" instead of "1/(n-1)" in the calculation of standard deviation, which was used for data sets with a total number of data points less than 20. Find the value of the 8th reading and determine if the elimination is actually necessary. 8. ? 9 398 10 398 11 399 12 398 13 399 14 396 15 399 16 400
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