A random sample of bolts is taken from inventory, and their lengths are measured. The average length
Fantastic news! We've Found the answer you've been seeking!
Question:
A random sample of bolts is taken from inventory, and their lengths are measured. The average length in the sample is 5.3 inches with a standard deviation of .2 inches. The sample size was 50.
A 95% confidence interval for the unknown population mean is:
a. 4.784 to 5.816 inches.
b. None of the options are correct.
c. 4.9 to 5.7 inches.
d. 5.3 inches.
e. 5.3 inches plus or minus .056.
Expert Answer:
Posted Date:
