4 of 19 (2 complete)HW S6.3.27-TThe random sample shown below was selected from a normal distribution.8, 4, 6, 6, 3, 9Complete parts a and b.a. Construct a 90% confidence interval for thepopulation mean u.(Round to two decimal places as needed.)click Check AnswerEnter your answer in the edit fields and thenClear Apartsremaining2ZWasearch

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Asked Oct 31, 2019
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4 of 19 (2 complete)
HW S
6.3.27-T
The random sample shown below was selected from a normal distribution.
8, 4, 6, 6, 3, 9
Complete parts a and b.
a. Construct a 90% confidence interval for the
population mean u.
(Round to two decimal places as needed.)
click Check Answer
Enter your answer in the edit fields and then
Clear A
parts
remaining
2
Z
W
a
search
help_outline

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4 of 19 (2 complete) HW S 6.3.27-T The random sample shown below was selected from a normal distribution. 8, 4, 6, 6, 3, 9 Complete parts a and b. a. Construct a 90% confidence interval for the population mean u. (Round to two decimal places as needed.) click Check Answer Enter your answer in the edit fields and then Clear A parts remaining 2 Z W a search

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Expert Answer

Step 1

The provided random samp...

Mean of the sample can be calculated as
Sum of total values
Mean
total numbers
8+4 6 6+3+9
6
36
6
9=
The standard deviation can be calculated as:
ΣΧ-Χ)
S11
n
(8-6)'
++(9-6)
2.28
The f-value with (n-1-6-1) 5 degree of freedom at 90% confidence level from the t-value table is
2.02
help_outline

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Mean of the sample can be calculated as Sum of total values Mean total numbers 8+4 6 6+3+9 6 36 6 9= The standard deviation can be calculated as: ΣΧ-Χ) S11 n (8-6)' ++(9-6) 2.28 The f-value with (n-1-6-1) 5 degree of freedom at 90% confidence level from the t-value table is 2.02

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