True/False: The body’s automatic response to bleeding is blood vessel dilation and clotting.

3.3.2 Describe the impact on water quality if alien aquatic plants cover such a large area of South Africa as shown in the picture above. (5)

    [10]   TOTAL SECTION A: [50]

1.1.5 Which two gases are the main cause of global warming? A. CFCs and carbon dioxide B. Carbon dioxide and sulphur dioxide C. Nitrous oxide and carbon dioxide D. Carbon dioxide and methane (2)

Physicians who participate in the Medicare program must:

You test the claim that the proportion of green m&ms in a bag is larger than .2.   What are H0 and Ha?

Find a 90% confidence interval for the difference between the proportion of men who enjoy statistics tests and the proportion of women who enjoy statistics tests.   A random sample of 100 men contains 20 who enjoy statistics tests while a random sample of 75 women contains 18 who enjoy statistics tests.

You are interested in the sample means of sample size 100 for the proportion of cars on the road that are over 25 years old.   Suppose you know that proportion is p = .17.   Find the standard error of the estimate,

Base your answers to the next two questions on the epidemiology data below. A fundraiser was held at a local non-profit on the evening of August 22. The data show the number of cases presenting to the local hospital with gastroenteritis over the following five days.  

Social indicators research does not use existing statistics.