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Chapter 12: 12.86 (page 512)

BMD and Depression. In the paper "Depression and Bone Mineral Density: Is There a Relationship in Elderly Asian Men? (Osteoporosis International, Vol. 16, pp. 610-615), S. Wong et al. published results of their study on bone mineral density (BMD) and depression for 1999 Hong Kong men aged 65 to 92 years. Here are the cross-classified data.

At the 1% significance level, do the data provide sufficient evidence to conclude that BMD and depression are statistically dependent for elderly asian man ?

Short Answer

Expert verified

yes,the data provide sufficient evidence to conclude that an association exists between

completion of treatment and practice type at the 1% significance level

Step by step solution

01

Step 1. Given information

02

Step 2.

Check whether or not the data provide sufficient evidence to conclude that BMD and depression are statistically dependent for elderly Asian men at 1 \% significance level.

Step 1:

The test hypotheses are given below:

Null hypothesis:

H0 : There is no association exists between BMD and depression.

Alternative hypothesis:

H1 : There is an association exists between BMD and depression.

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Most popular questions from this chapter

P.Noakes et al. researched the effects of fatty acids found in oily fish on lowering the risk of allergic disease in the article "Increased Intake of Oily Fish in Pregnancy: Effects on Neonatal Immune Responses and on Clinical Outcomes in Infants at 6Mo.". Pregnant women were randomly assigned to continue their habitual diet (control group), which was low in oily fish, or to consume two portions of salmon per week (treatment group). Their infants were clinically evaluated at 6months of age and the frequency of many different symptoms was recorded. Of the 37infants in the control group,12had symptoms of dry skin; and of the 45 infants in the experimental group, 14had symptoms of dry skin. At thedata-custom-editor="chemistry" 5%significance level, do the data provide sufficient evidence to conclude that a difference exists in the proportions of infants who have symptoms of dry skin at6 months between those whose mothers continue their habitual diet and those whose mothers consume two portions of salmon per week?

Part (a): Use the two-portionsz-test to perform the required hypothesis test.

Part (b): Use the chi-square homogeneity test to perform the required hypothesis test.

Part (c): Compare your results in parts (a) and (b).

Part (d): Explain what principle is being illustrated.

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In given exercise use either the critical-value approach or the P-value approach to perform a chi square independence lest. provided the conditions for using the test are met.

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At the 1% significance level, do the data provide sufficient evidence to conclude that an association exists between education level and diabetic state for native Americans?

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