Instruction 8-1
A random sample of 100 stores from a large chain of 1,000 garden supply stores was selected to determine the average number of lawnmowers sold at an end-of-season clearance sale. The sample results indicated an average of 6 and a standard deviation of 2 lawnmowers sold. A 95% confidence interval (5.623 to 6.377) was established based on these results.
-Referring to Instruction 8-1,of all possible samples of 100 stores drawn from the population of 1,000 stores,95% of the sample means will fall between 5.623 and 6.377 lawnmowers.

Question

Quizplus · Accepted Answer

The statement misinterprets the confidence interval. The 95% confidence interval (5.623 to 6.377) means we are 95% confident that the true population mean falls within this range, not that 95% of sample means will fall within these limits.

Instruction 8-1 A Random Sample of 100 Stores from a Large Chain