Use the given information to find the number of degrees of freedom, the critical values and x2. and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 80% confidence; n = 27, s = 0.28 mg. Click the icon to view the table of Chi-Square critical values. =(Type a whole number.) x2 = (Round to three decimal places as needed.) X=(Round to three decimal places as needed.) The confidence interval estimate of o ismg<

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100%
Area to the right of the critical value
O
Degrees of
Freedom
1
2
3
4
5
6
7
Chi-Square (x²) Distribution
0.995
0.010
0.072
0.207
0.412
0.676
0.989
0.99
0.020
0.115
0.297
0.554
0.872
1.239
0.975
0.001
0.051
0.216
0.484
0.831
1.237
1.690
Area to the Right of the Critical Value
0.95
0.004
0.103
0.352
0.711
1.145
1.635
2.167
0.90
0.016
0.211
0.584
1.064
1.610
2.204
2.833
0.10
2.706
4.605
6.251
7.779
9.236
10.645
12.017
0.05
3.841
5.991
7.815
9.488
11.071
12.592
14.067
0.025
5.024
7.378
9.348
11.143
12.833
14.449
16.013
X
Transcribed Image Text:Area to the right of the critical value O Degrees of Freedom 1 2 3 4 5 6 7 Chi-Square (x²) Distribution 0.995 0.010 0.072 0.207 0.412 0.676 0.989 0.99 0.020 0.115 0.297 0.554 0.872 1.239 0.975 0.001 0.051 0.216 0.484 0.831 1.237 1.690 Area to the Right of the Critical Value 0.95 0.004 0.103 0.352 0.711 1.145 1.635 2.167 0.90 0.016 0.211 0.584 1.064 1.610 2.204 2.833 0.10 2.706 4.605 6.251 7.779 9.236 10.645 12.017 0.05 3.841 5.991 7.815 9.488 11.071 12.592 14.067 0.025 5.024 7.378 9.348 11.143 12.833 14.449 16.013 X
↑
Use the given information to find the number of degrees of freedom, the critical values and x. and the confidence
interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population
with a normal distribution.
Nicotine in menthol cigarettes 80% confidence; n = 27, s = 0.28 mg.
Click the icon to view the table of Chi-Square critical values.
df =
x2 =
x² =
The confidence interval estimate of o ismg<o<mg.
(Round to two decimal places as needed.)
(Type a whole number.)
(Round to three decimal places as needed.)
(Round to three decimal places as needed.)
Transcribed Image Text:↑ Use the given information to find the number of degrees of freedom, the critical values and x. and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 80% confidence; n = 27, s = 0.28 mg. Click the icon to view the table of Chi-Square critical values. df = x2 = x² = The confidence interval estimate of o ismg<o<mg. (Round to two decimal places as needed.) (Type a whole number.) (Round to three decimal places as needed.) (Round to three decimal places as needed.)
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