Diabetes In a simple random sample of 1200 Americans age 20 and over, the proportion with diabetes was found to be 0.115 or 11.5 % . a. What is the standard error for the estimate of the proportion of all Americans age 20 and over with diabetes? b. Find the margin of error, using a 95 % confidence level, for estimating this proportion. c. Report the 95 % confidence interval for the proportion of all Americans age 20 and over with diabetes. d. According to the Centers for Disease Control and Prevention, nationally, 10.7 % of all Americans age 20 or over have diabetes. Does the confidence interval you found in part c support or refute this claim? Explain.
Diabetes In a simple random sample of 1200 Americans age 20 and over, the proportion with diabetes was found to be 0.115 or 11.5 % . a. What is the standard error for the estimate of the proportion of all Americans age 20 and over with diabetes? b. Find the margin of error, using a 95 % confidence level, for estimating this proportion. c. Report the 95 % confidence interval for the proportion of all Americans age 20 and over with diabetes. d. According to the Centers for Disease Control and Prevention, nationally, 10.7 % of all Americans age 20 or over have diabetes. Does the confidence interval you found in part c support or refute this claim? Explain.
Solution Summary: The author calculates the standard error for the estimate of the proportion of all Americans aged 20 and above with diabetes.
Diabetes In a simple random sample of 1200 Americans age 20 and over, the proportion with diabetes was found to be
0.115
or
11.5
%
.
a. What is the standard error for the estimate of the proportion of all Americans age 20 and over with diabetes?
b. Find the margin of error, using a
95
%
confidence level, for estimating this proportion.
c. Report the
95
%
confidence interval for the proportion of all Americans age 20 and over with diabetes.
d. According to the Centers for Disease Control and Prevention, nationally,
10.7
%
of all Americans age 20 or over have diabetes. Does the confidence interval you found in part c support or refute this claim? Explain.
Joy is making Christmas gifts. She has 6 1/12 feet of yarn and will need 4 1/4 to complete our project. How much yarn will she have left over compute this solution in two different ways 
Solve for X. Explain each step.
2^2x • 2^-4=8
One hundred people were surveyed, and one question pertained to their educational background. The results of this question and their genders are given in the following table.
Female (F)
Male (F′)
Total
College degree (D)
30
20
50
No college degree (D′)
30
20
50
Total
60
40
100
If a person is selected at random from those surveyed, find the probability of each of the following events.1. The person is female or has a college degree. Answer:
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Equation Editor
2. The person is male or does not have a college degree. Answer:
equation editor
Equation Editor
3. The person is female or does not have a college degree.
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