Assume the velocity of a person traveling along a straight hiking trail is given by the graph. The input to the function is time in hours, and the output is velocity in miles per hour. The trail travels east-west, and the velocity shown is the eastward velocity. -0.5 0.5 1.5 25 3 3.5 4.5 5 55 6 6.5 75 8,5 9.5 10 -1 -2 -3 -4 -5 If the hiker started 2 miles west of the only outhouse on this trail at time t = 0 hour, is there a time when the hiker is 7 miles east of the outhouse?

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.