Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question 1: In a certain city with a population of 1 million people, 5,000 people died last year. In the same city 10,000 were known to have cancer last year, of whom 500 died. 1.What was the total annual mortality rate per 100,000 in the city last year? 2. What was the proportionate mortality from cancer in the previous scenario? 3. What was the case fatality rate from cancer? Question 2: In a certain noisy factory, workers are provided with earplugs and are expected to wear them. An industrial hygienist inspecting the plant found that 100 of the 500 workers in the factory were not wearing their earplugs because they regarded them as uncomfortable and a nuisance. When all the workers were given a hearing test, it was found that 4 of the earplug wearers and 10 of the non-wearers had developed significant hearing loss. All had had normal hearing at their pre-employment examinations one year earlier, when the plant opened. 1. What was the cumulative incidence rate of hearing loss in workers who did not wear earplugs? 2. What was the relative risk of hearing loss in workers who did not wear earplugs, compared with those who did? 3. What was the risk of hearing loss attributable to not wearing earplugs (i.e., what was the risk difference)? 4. What proportion of hearing loss in the non-wearers was attributable to not wearing earplugs? 5. What proportion of the hearing loss in all the workers was attributable to not wearing earplugs?
A study of 49 business graduates reported 42 students listed stats 100 as their least favorite class. what would be the 99.8% confidence interval of the proportion of business students who hate, hate, hate business?
A machine is set to pump cleanser into a process at the rate of 8 gallons per minute. Upon inspection, it is learned that the machine actually pumps cleanser at a rate described by the uniform distribution over the interval 7.5 to 10.5 gallons per..
Two types of flares are tested for their burning times (in minutes) and sample results are given below.
The net profit of an investment is normally distributed with a mean of $10,000 and a standard deviation of $5,000. The probability that the investor's net profit will be between $12,000 and $15,000 is _____________.
Determine the probability of a positive economic trend given an increasing employment. Are employment and economic trend independent?
Differentiate both sides of the equation from part (a) with respect to x to obtain:
When determining the sample size necessary for estimating the true population mean, which factor is not considered when sampling with replacement
In the regression analysis involving 25 observations following estimated regresion equation was developed. hat(Y) = 10 - 18x1+3x2+14x3 also follwoing standard errors. Test stastic for testing significance of model is?
Use Excel and the data to test whether the mean alcohol expenditures for UCM students is equal to that of SBU students using a 1 % level of significance.
A normal distributed population has a mean of 250 pounds and a standard deviation of 10 pounds. Given n = 20, what is the probability that this sample will have a mean value between 245 and 255 pounds?
A machine produces parts with lengths that are normally distributed with ? = 0.59. A sample of 19 parts has a mean length of 76.26.
When performing a 2-way ANOVA with replication you must first: A) Perform an interaction hypothesis test B) Take out the error because you ran replicates and error makes no sense with replicates
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd