What is probability for him to be self-reportedly unhealthy

Assignment Help Physics

Reference no: EM131064247

Suppose we have data from a health survey conducted in year 2010. Data were obtained from a random sample of 2342 persons.

A dichotomous logistic regression analysis was conducted in the following way:
Dependent Variable (Y): Self-reported general health (1 if not healthy, 0 if healthy)
Independent Variables: Gender (1 if female, 0 if male)

Age (in years)

Race/Ethnicity (binary variables for "Non-Hispanic Black" "Hispanic" and "Others"; the reference category is "Non-Hispanic White")

Form of the equation: where p is the probability of being self-reportedly unhealthy and Xj's (j=1, 2, ..., k) are independent variables. Age range of the sample: 25-84. The log(p/(1-p)) is also called log odds. (Note, the logarithm we used in the class is natural log. If you use EXCEL, make sure to use the ln() function instead of the log() function).

The computer output is given below. The column labeled "Beta" shows estimated regression coefficients, i.e., α and β's in the above equation. (It can be interpreted that beta's for the reference categories, "Male" and "Non-Hispanic White", are fixed to be zero.)

1. Suppose that the data set includes a 30-year old Hispanic man. What is his log odds of being self-reportedly unhealthy according to this regression equation?

2. What are his odds of being self-reportedly unhealthy according to this regression equation?

3. What is the probability for him to be self-reportedly unhealthy, according to this regression equation?

4. The above table shows that exp(beta) for "Hispanic" is 3.722 ( = exp(1.314) ). What does this number mean? (Hint: Note that the reference category for Race/Ethnicity is "Non-Hispanic White".)

5. The above table shows that exp(beta) for "Age" is 1.026 ( = exp(0.026) ). What does this number mean?

6. Let us consider the odds (or log odds) of being self reportedly unhealthy for Non-Hispanic White, adjusted for gender and age, and that for Non-Hispanic Black. Are they statistically significantly different at the 0.05 level by the two-sided test? Why or why not?

Reference no: EM131064247

Questions Cloud

Advantages of application- enhance the communication process : Discuss the advantages and disadvantages of a particular computer device or software application which is used by people to enhance the communication process". Detailed topics are on page seven.

The null and alternative hypothesis for a two-sided test : The mean wage of people living in a block of flats is said to be £400 a week. A random sample of 36 people was examined to give a sample mean of £435 and a sample standard deviation of £84.

Discuss firms primary strategy and how well it has been work : You will discuss the firm's primary strategy and how well it has been working. You will need to provide a detailed financial analysis, to determine whether or not this firm is generating positive economic value.

Characteristics of an organized securities exchange : 1. What are some of the characteristics of an organized securities exchange? 2. Describe the types of members of the New York Stock Exchange (NYSE).

What is probability for him to be self-reportedly unhealthy : The above table shows that exp(beta) for "Hispanic" is 3.722 ( = exp(1.314) ). What does this number mean? (Hint: Note that the reference category for Race/Ethnicity is "Non-Hispanic White".)

A null hypothesis that the percentage in population : Given H0 (π 1 - π 2) = 0 and H1 (π 1 - π 2) π is a percentage, we are testing: a. A null hypothesis that the percentage in population 1 is smaller than the percentage in population 2

Create human resources department for organization : You have been hired by a company as a Human Resource Generalist to create a Human Resources Department for the organization. You will be the only employee in this department for the foreseeable future.

How the company responds to predictable variability : Write a 1,050- to 1,400-word paper addressing the following: Discuss how the company responds to predictable variability in the supply chain. Describe how supply is managed at this company

The marketing department claims : The marketing department claims that 60 per cent of customers are aware of the full range of the products offered by the company. Senior management thinks it could be less. The hypotheses can be stated as:

User Account

All Pages