An SRS of 100 flights by Falcon Airlines shows that 82 were on time. An SRS of 100 flights by WinterSoldier Airlines shows that 68 were on time. Let Pn be the proportion of on-time flights for all Falcon Airline flights, and let Pw be the proportion of all on-time flights for all WinterSoldier flights. A 95% confidence interval for the difference Pn-Pw is:

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In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?