Consider the two confidence intervals for μ, the true average (i. e., population mean) resonance frequency (measured in hz) for all tennis rackets of a certain type: (114.4, 115.6) (114.1, 115.9)(a) what is the value of the sample mean resonance frequency? (b) both intervals were calculated from the same sample data. the confidence level for one interval is 90%; the confidence level for the other interval is 99%. which interval is the 90% confidence level, and why?

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step-by-step explanation:

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step-by-step explanation:

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: