It is generally believed that nearsightedness affects about 12% of children. A school district gave vision tests to a random sample of 135 incoming kindergarten 28 of the kids were nearsighted. children in September and found that
a. Discuss each of the conditions required to use a sampling model in this situation.
b. Define the model for the proportion of children who are nearsighted in sample of 133. Give its name and parameters in proper form.
c. Sketch and label the model with a scale and title.
d. What is the probability of getting the observed result or higher?
e. How many standard deviations from the mean is the observed result?
