Multiple Choice
A population has a known standard deviation of 25. A simple random sample of 49 items is taken from the selected population. The sample mean (x-bar) is 300. What is the margin of error at the 95% confidence level?
A) ±8
B) ±93
C) ±7
D) ±08
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q1: A student wanted to construct a 99%
Q2: A local retail company wants to estimate
Q4: Which of the following is a point
Q5: To determine the size of a sample,the
Q6: The mean number of travel days per
Q7: A survey of households in a small
Q8: What kind of distribution is the t-distribution?<br>A)Continuous<br>B)Discrete<br>C)Subjective<br>D)A
Q9: A research firm wants to compute an
Q10: A group of statistics students decided to
Q11: A random sample of 42 college graduates