12h
Please answer A-E
women eating a strict vegetarian diet (VEG). The mean \pm 1 sd for protein intake ( mg ) is presented in the table below. Protein Intake (mg) Among Three Dietary Groups of Postmenopausal Women You can use the Distribution Calculators page in SALT to find critical values and/or p-values to answer parts of this question. (a) Perform a statistical procedure to compare the means of the three groups using the critical-value method. (Use =0.05.) State the null and altemative hypotheses. H0:i=0foralliH1:atleastonei=0H0:atleastonei=0H1:i=0foralliH0:i=0foralljH1:atleastonei=0H0:atleastonei=0H1:i=0forallj Find the test statistic. (Round your answer to two decimal places.) Find the critical value. (Round your answer to two decimal places.) Reject H0. There is insufficient evidence to conclude that the means of these three groups are not all the same. Fail to reject H0. There is insufficient evidence to conclude that the means of these three groups are not all the same. Fail to reject H0. There is sufficient evidence to conclude that the means of these three groups are not all the same. Reject H0. There is sufficient evidence to conclude that the means of these three groups are not all the same. (b) Use technology to find the p-value from the test performed in part (a). (Round your answer to four decimal places.) p-value = (c) Compare the means of each specific pair of groups using the LSD methodology. (Round your test statistics to two decimal places and your p-values to four decimal places. Use =0.05.) (d) Suppose that in the general population, 70% of vegetarians are lacto-ovo-vegetarians, whereas 30% are strict vegetarians. Perform a statistical procedure to test whether the contrast L=0.7y2+0.3y3y1 is significantly different from 0 . (Use =0.05.) State the null and alternative hypotheses (in mg). (Enter != for = as needed.) H0 H1: Find the test statistic. (Round your answer to two decimal places.) Use technology to find the p-value. (Round your answer to four decimal places.) Reject H0. There is sufficient evidence to conclude that the contrast is significantly different from 0. Fail to reject H0. There is insufficient evidence to conclude that the contrast is significantly different from 0 . What does the contrast mean? This contrast is an estimate of the difference in mean protein intake between the general vegetarian population and the general non-vegetarian population. This contrast is an estimate of the ratio of mean protein intake in the general vegetarian population over that of the general non-vegetarian population. values to four decimal places. Use x=0,05, ) Since there specific comparisons of interest specified by the researchers before looking at the data, it is most appropriate to use multiple-comparisons procedure. women eating a strict vegetarian diet (VEG). The mean \pm 1 sd for protein intake ( mg ) is presented in the table below. Protein Intake (mg) Among Three Dietary Groups of Postmenopausal Women You can use the Distribution Calculators page in SALT to find critical values and/or p-values to answer parts of this question. (a) Perform a statistical procedure to compare the means of the three groups using the critical-value method. (Use =0.05.) State the null and altemative hypotheses. H0:i=0foralliH1:atleastonei=0H0:atleastonei=0H1:i=0foralliH0:i=0foralljH1:atleastonei=0H0:atleastonei=0H1:i=0forallj Find the test statistic. (Round your answer to two decimal places.) Find the critical value. (Round your answer to two decimal places.) Reject H0. There is insufficient evidence to conclude that the means of these three groups are not all the same. Fail to reject H0. There is insufficient evidence to conclude that the means of these three groups are not all the same. Fail to reject H0. There is sufficient evidence to conclude that the means of these three groups are not all the same. Reject H0. There is sufficient evidence to conclude that the means of these three groups are not all the same. (b) Use technology to find the p-value from the test performed in part (a). (Round your answer to four decimal places.) p-value = (c) Compare the means of each specific pair of groups using the LSD methodology. (Round your test statistics to two decimal places and your p-values to four decimal places. Use =0.05.) (d) Suppose that in the general population, 70% of vegetarians are lacto-ovo-vegetarians, whereas 30% are strict vegetarians. Perform a statistical procedure to test whether the contrast L=0.7y2+0.3y3y1 is significantly different from 0 . (Use =0.05.) State the null and alternative hypotheses (in mg). (Enter != for = as needed.) H0 H1: Find the test statistic. (Round your answer to two decimal places.) Use technology to find the p-value. (Round your answer to four decimal places.) Reject H0. There is sufficient evidence to conclude that the contrast is significantly different from 0. Fail to reject H0. There is insufficient evidence to conclude that the contrast is significantly different from 0 . What does the contrast mean? This contrast is an estimate of the difference in mean protein intake between the general vegetarian population and the general non-vegetarian population. This contrast is an estimate of the ratio of mean protein intake in the general vegetarian population over that of the general non-vegetarian population. values to four decimal places. Use x=0,05, ) Since there specific comparisons of interest specified by the researchers before looking at the data, it is most appropriate to use multiple-comparisons procedure
