A study was conducted to evaluate the effect of calcium supplement on preventing postmenopausal osteoporosis. Among 300 women aged 60 and above who took calcium supplements regularly, 15% had postmenopausal...

no furthur

Compute the probability that the mean body temperature from a random sample of 106 individuals will fall between 97.3 and 98.9

1. From our class (20 females, 15 males), four students are to be chosen to form a committee.   In how many different ways can the students be chosen such that there would be at least...

5. A medicine is developed to lower blood pressure for hypertensive patients. The clinical test shows that the drug has better effects on males and females. It lowers the blood pressure of male patients...

â€˘ 4 Ebola patients are to be treated with a new serum. The probability of success with this serum is 0.4. What is the probability of only 2 successful treatments? Show appropriate formula and calculations...

1. You are interested in the average annual salary of American public health professionals. So, you took a random sample and found that the mean annual salary is \$53,145. Suppose you knew from previous...

2. Over the past five years, the public health graduatesâ€™ mean GPA is 2.75. The chair is interested in finding out whether graduates this year have made any significant improvement in GPA. So, she...

I was wondering if you could help me in determining which test to use. I want to look at the differences in prosomal width of male and female horseshoe crabs based on age (1,1.5, 2, 2.5, 3). I had...

I was told by my thesis advisor that I might need to do a repeated measures ANOVA because I sampled the same transects over time and my observations are technically not independent. However, everything...

Hypothesis Testing and Inference This assignment focuses on estimation and hypothesis testing with one-sample and two-sample inferences. The essence of parametric testing is the use of...

1.) An ecological study is one that examines a group as a unit of analysis--- True or false?     2.) An ecologic comparison study is sometimes called a cross-sectional ecological...

Randomization, Placebos, Blinding or "Run-in-period"?

Two students took the same courses last year. Each received the following final grades. In evaluating the grades, student 2 claims that it is a tie, while student 1 says he has a better grade. Who...

consider the following dataset (3,3,3,3,4,4,4,4,5,6,6,6,8,8,9,10,11,12,13)(I already put it in order). Find: a. Mode, median, mean b. The minimum, maximum, three quartiles, IQR, variance,...

A study of 200 out-patients visiting a hospital during the past year showed that on average the waiting time to see a physician was 30 minutes. Please answer the following questions: a. What is...

The office of Student health at a local college decides to take a survey to better understand the students' mental health needs and whether the college has met such needs. Given limited time and resources,...

Suppose you want a confidence level of 99% and your margin of error is 1%. Please calculate how big you sample size should be? Assume the population you are going to sample from has the highest variation...

A medicine is developed to lower blood pressure for hypertensive patients. The clinical test shows that the drug has better effects on males and females. It lowers the blood pressure to male patients...

A hospital conducts a survey of patients' satisfaction with its service. Each survey respondent ranks the 3 items with which he/she is most satisfied with the hospital service. The items to be ranked...