The cost of a hamburger varies with a standard deviation of $1.40. A study was done to test the mean being $4.00. A samp
Posted: Sun Jul 10, 2022 10:22 am
The cost of a hamburger varies with a standard deviation of $1.40. A study was done to test the mean being $4.00. A sample of 14 found a mean cost of $3.25 with a standard deviation of $1.80. Does this support the claim of 1% level? Null Hypothesis: Alternative Hypothesis: Define the random variable: Standard deviation: Preconceived alpha: Decision: Reason for decision: Conclusion: Make a 99% confidence interval