Rebecca has 30 small glass tiles in the shape of parallelograms as shown in the diagram. She plans to use them to create a small
2 answers:
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Answer: ($3.532, $4.166)
Step-by-step explanation:
Given : Significance level :
Critical value :
Sample size : n= 157
Sample mean :
Standard deviation :
The confidence interval for population mean is given by :_
Hence, the 0% confidence interval for the average tip given at this restaurant = ($3.532, $4.166)