You volunteer some of your spare time to your local fire department and have been asked by an assistant chief to analyze data on firefighters who applied for promotion. The assistant chief wants to ensure that gender bias is not a concern in the promotion of firefighters. Shown below is data for 50 firefighters who […]
Category Archives: Statistics
Subtract the following and reduce to lowest terms:
Math Week 2 2-12. 5 75 2 6′ 18’9′ 72 Inspection 2-13. 1 3 5 1 4’32’48’1 Inspection Check Add the following and reduce to lowest terms: LU 2-2(1), LU 2-1(3) 2-14. 3 + –3 2-15. 3+ 4 9 9 7 21 2-16. 6 I + a 2-17. 63+9 1 24 8 8 8 2-18. […]
Divide the following and reduce to lowest terms-Use the cancellation technique as needed.
Math Week 2 Multiply the following and reduce to lowest terms. Do not use the cancellation technique for these problems. LU 2-3(1), LU 2-1(3) 2-22. 2-24. 17 x –4 2 87 x 64 8 2-23. –5 x –3 6 8 Multiply the following. Use the cancellation technique. LU 2-3(1), LU 2-1(2) 2-25. -4x —30 x […]
What is the estimated odds ratio corresponding to the age variable?
Calculate Odds within Logistic Regression Model A survey was conducted and asked: “Do you consider your health to be poor?” This was coded as 1 for “yes” and 0 for “no.” The effect of age (in years) and sex (1 = male, 0 = female) on the outcome was examined using logistic regression. The fitted […]
If the population distribution is normal, then the sampling distribution of the sample mean(With sample size n) is normal. True or false.
If the population distribution is normal, then the sampling distribution of the sample mean(With sample size n) is normal. True or false. A sampling distribution of a statistic is the distribution of values taken by the statistic in all possible samples of different sizes from the same population. True or false For the same population […]
How many factors and dependent variables does this analysis have?
In order to evaluate the effect of a drug over a disease a pharmaceutical company wants to perform a study comparing the effect of the drug with placebo. The drug and the placebo will be delivered to both male and female patients to verify any possible different response of the two sexes. The effect of […]
Develop a null and an alternative hypothesis for a decision that is relevant to your life.
Develop a null and an alternative hypothesis for a decision that is relevant to your life. This decision can be personal or professional. Share your null and alternative hypotheses with your peers in this week’s discussion. Be sure to include the following in your post.Define/discuss: All variables ; The appropriate test statistic, and if it […]
State the mean cholesterol level of a random sample of 100 adults aged 45 – 54 was 216 milligrams with a standard deviation of 19.5 milligrams.
1 State the mean cholesterol level of a random sample of 100 adults aged 45 – 54 was 216 milligrams with a standard deviation of 19.5 milligrams. Construct a 98% confidence interval for p, the true mean cholesterol level of adults aged 45 54. 2 When Mendel conducted his famous genetics experiments with peas, he […]
Show that the conditional distribution of belongs to the .potential family of dis,distributions.
Generalized linear models a) Let Y b bit y ma® unction 1(.6)=vV),0—OK where r is known. Show that the distribution belongs to the exponential family and hence find the mean sad VBSIBBOP of y. b) Cns.’ r a 2 x 2 contingency table with one margin fixed at n, and n, binomial(n, ) (1 u,binomial(n,,P,) […]
Evaluate the following integral, ffzdS, where S is the part of the sphere x2 + y2 + z2 = 81 that lies above the cone z = Ag■,/x2 + y2 .
Problem 3: Evaluate the following integral, ffzdS, where S is the part of the sphere x2 + y2 + z2 = 81 that lies above the cone z = Ag■,/x2 + y2 . Problem 3: Enter your answer symbolically, as in these examples
