nsider the following summary data on the modulus of elasticity (x 10° psi) for lumber of three different grades. Grade X₁ S₁ 1 2 3 9 1.61 0.22 9 1.54 0.25 9 1.43 0.21 USE SALT e this data and a significance level of 0.01 to test the null hypothesis of no difference in mean modulus of elasticity for the three grades. Calculate the test statistic. (Round your answer to two decimal places.) =[ hat can be said about the P-value for the test? OP-value > 0.100 O 0.050 < P-value < 0.100 O 0.010 < P-value < 0.050 O 0.001 < P-value < 0.010 OP-value < 0.001 hat can you conclude? O Reject Ho. At least two of the three grades appear to differ significantly. O Reject Ho. The three grades do not appear to differ significantly. O Fail to reject Ho. The three grades do not appear to differ significantly. O Fail to reject Ho. At least two of the three grades appear to differ significantly. u may need to use the appropriate table in the Appendix of Tables to answer this question.

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Consider the following summary data on the modulus of elasticity (✕ 106 psi) for lumber of three different grades. 

Grade J xi. si
1 9 1.61 0.22
2 9 1.54 0.25
3 9 1.43 0.21
Use this data and a significance level of 0.01 to test the null hypothesis of no difference in mean modulus of elasticity for the three grades. Calculate the test statistic. (Round your answer to two decimal places.)
f =
What can be said about the P-value for the test?
P-value > 0.100 0.050 < P-value < 0.100     0.010 < P-value < 0.050 0.001 < P-value < 0.010 P-value < 0.001
What can you conclude?
Reject H0. At least two of the three grades appear to differ significantly. Reject H0. The three grades do not appear to differ significantly.     Fail to reject H0. The three grades do not appear to differ significantly. Fail to reject H0. At least two of the three grades appear to differ significantly.
Consider the following summary data on the modulus of elasticity (x 106 psi) for lumber of three different grades.
Grade J X₁. Si
1
2
3
9 1.61 0.22
9 1.54 0.25
9 1.43 0.21
USE SALT
Use this data and a significance level of 0.01 to test the null hypothesis of no difference in mean modulus of elasticity for the three grades. Calculate the test statistic. (Round your answer to two decimal places.)
f =
What can be said about the P-value for the test?
OP-value > 0.100
O 0.050 < P-value < 0.100
O 0.010 < P-value < 0.050
O 0.001 < P-value < 0.010
OP-value < 0.001
What can you conclude?
O Reject Ho. At least two of the three grades appear to differ significantly.
O Reject Ho. The three grades do not appear to differ significantly.
O Fail to reject Ho. The three grades do not appear to differ significantly.
O Fail to reject Ho. At least two of the three grades appear to differ significantly.
You may need to use the appropriate table in the Appendix of Tables to answer this question.
Transcribed Image Text:Consider the following summary data on the modulus of elasticity (x 106 psi) for lumber of three different grades. Grade J X₁. Si 1 2 3 9 1.61 0.22 9 1.54 0.25 9 1.43 0.21 USE SALT Use this data and a significance level of 0.01 to test the null hypothesis of no difference in mean modulus of elasticity for the three grades. Calculate the test statistic. (Round your answer to two decimal places.) f = What can be said about the P-value for the test? OP-value > 0.100 O 0.050 < P-value < 0.100 O 0.010 < P-value < 0.050 O 0.001 < P-value < 0.010 OP-value < 0.001 What can you conclude? O Reject Ho. At least two of the three grades appear to differ significantly. O Reject Ho. The three grades do not appear to differ significantly. O Fail to reject Ho. The three grades do not appear to differ significantly. O Fail to reject Ho. At least two of the three grades appear to differ significantly. You may need to use the appropriate table in the Appendix of Tables to answer this question.
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