A researcher is studying wood volume production in forested areas. Wood volume data were collected in different plots (sampling units) in areas A and B, as shown in the table below. The researcher states that there is no difference in the volume of wood produced between the two areas. It assumes that the volume of wood follows a normal distribution and that the population variance of the volume in area A (σ2A) is different from the population variance of the volume in area B (σ2B). Carry out an adequate hypothesis test to verify the researcher's statement, considering a significance level of 2% portion 1 2 3 4 5 6 7 8 9 10 Área A 65 70 63 76 65 65 76 65 65 63 Área B 50 62 50 61 66 70 62 61 68 a. What range of values is the p-value in? b. Is there evidence to reject H0 with the adopted significance level?
A researcher is studying wood volume production in forested areas. Wood volume data were collected in different plots (sampling units) in areas A and B, as shown in the table below. The researcher states that there is no difference in the volume of wood produced between the two areas. It assumes that the volume of wood follows a normal distribution and that the population variance of the volume in area A (σ2A) is different from the population variance of the volume in area B (σ2B). Carry out an adequate hypothesis test to verify the researcher's statement, considering a significance level of 2% portion 1 2 3 4 5 6 7 8 9 10 Área A 65 70 63 76 65 65 76 65 65 63 Área B 50 62 50 61 66 70 62 61 68 a. What range of values is the p-value in? b. Is there evidence to reject H0 with the adopted significance level?
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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A researcher is studying wood volume production in forested areas. Wood volume data were collected in different plots (sampling units) in areas A and B, as shown in the table below. The researcher states that there is no difference in the volume of wood produced between the two areas. It assumes that the volume of wood follows a normal distribution and that the population variance of the volume in area A (σ2A) is different from the population variance of the volume in area B (σ2B). Carry out an adequate hypothesis test to verify the researcher's statement, considering a significance level of 2%
portion | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Área A | 65 | 70 | 63 | 76 | 65 | 65 | 76 | 65 | 65 | 63 |
Área B | 50 | 62 | 50 | 61 | 66 | 70 | 62 | 61 | 68 |
a. What
b. Is there evidence to reject H0 with the adopted significance level?
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