Answer:
I think he made a mastake a step 3
Step-by-step explanation:
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Parking lot A equation- $3.00 + $9.00x
Parking lot B equation- $10.00 + $6.00x
Part A- For 3 days parking lot B would be the better option- $28
Part B- For 8 days parking lot B would also be the better option- $58
Answer:
A t-score of 2.0244 should be used to find the 99% confidence interval for the population mean
Step-by-step explanation:
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 39 - 1 = 38
Now, we have to find a value of T, which is found looking at the t table, with 38 degrees of freedom(y-axis) and a confidence level of 0.99(
). So we have T = 2.0244.
A t-score of 2.0244 should be used to find the 99% confidence interval for the population mean