standardized achievement tests to nationwide samples of 17-year-olds in school. One year, the tests covered history and literature. You may assume that a simple random sample of size 6,000 was taken and 95.2% of students knew that Edison invented the light bulb. Select the correct response about a 95% confidence interval for the percentage of all 17-year-olds in school who knew that Edison invented the light bulb. (a) The 95% - confidence interval is [0.949, 0.955] (b) The 95% - confidence interval is not possible because we do not know the population percentage (c) The 95% - confidence interval is
The National Assessment of Educational Progress administers standardized achievement tests to nationwide samples of 17-year-olds in school. One year, the tests covered history and literature. You may assume that a simple random
Select the correct response about a 95% confidence interval for the percentage of all 17-year-olds in school who knew that Edison invented the light bulb.
(a) The 95% - confidence interval is [0.949, 0.955]
(b) The 95% - confidence interval is not possible because we do not know the population percentage
(c) The 95% - confidence interval is not possible because the data does not follow a normal approximation
(d) The 95% - confidence interval is [0.946, 0.958]
(e) The 95% - confidence interval is [0.932, 0.972]
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