Question

S. Find the critical value or values of χ2 based on the given information. (1 point) Hi: σ < 0.629 n- 19 α 0.025 8.231 8.907 3 1.526 7.015 0

Answer 1

28. H1:σ < 0.629, n=19, α = 0.025

it is a one(left) tailed test. with df = 19-1=18

Critical value using excel =

=CHISQ.INV(0.025,18)

= 8.231

Option 1st.

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29.

1 Chi-Square Test of Standard deviation Data 4 Null Hypothesis 5 Level of Significance 6 Sample Size 7 Sample Standard Deviatio 8 15 0.1 14 9.819246 Intermediate Calculations 13 0.05 5.571 C6-1 10 Degrees of Freedom 11 Half Area 12 Chi-Square Statistic 13 14 15 Lower Critical Value 16 p-Value 17 18 =CS/2 Lower-Tail Test 7.042 -CHISQ.INV.RT(1-C5, C10) -1-CHISQ.DIST.RT(c12, c10) 0.0396 Reject the null hypothesis

Answer

Test statistic: 25.571, Critical value: 27.042

Option 3rd

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26.

1 Chi-Square Test of Standard deviation Data 4 Null Hypothesis 5 Level of Significance 6 Sample Size 7 Sample Standard Deviatio 8 16.1 0.01 13.2 Intermediate Calculations 21 0.005 14.116 10 Degrees of Freedom 11 Half Area 12 Chi-Square Statistic 13 14 15 Lower Critical Value 16 p-Value 17 18 C6-1 C5/2 Lower-Tail Test -CHISQ.INV.RT(1-C5, C10) -1-CHISQ.DIST.RT(c12, c10) 8.897 0.1354 Do not reject the null hypothesis

Test statistic: 214.116, Fail to reject H

Option 4th

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27. two tailed test, df = 28-1=27

Critical value using excel =

Lower value =CHISQ.INV.RT(0.975 ,27) = 14.573

Upper value =CHISQ.INV.RT(0.025 ,27) = 43.194

Option 4th