Multiple Choice
The average natural gas bill for a random sample of 26 homes in the 19808 zip code during the month of March was $305.30 with a sample standard deviation of $46.50. The critical value for a 95% confidence interval around this sample mean is __________ .
A) 1.706
B) 1.708
C) 2.056
D) 2.060
Correct Answer:
Verified
Correct Answer:
Verified
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