Multiple Choice
On a standard IQ test,the standard deviation is 15.How many random IQ scores must be obtained if we want to find the true population mean (with an allowable error of 0.5) and we want 97 percent confidence in the results?
A) 4,239
B) 283
C) 212
D) 131
E) 66
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q4: A random sample n = 15 is
Q7: A local company makes a candy that
Q9: A sample of 2,000 people yielded =.52.What
Q11: A local company makes a candy that
Q48: When the margin of error is added
Q75: You want to estimate the proportion of
Q76: The state agriculture department tested 203 fuel
Q89: What sample size is needed to estimate
Q117: As the stated confidence level decreases, the
Q132: When the level of confidence and sample