Hi I have two true or false questions. In general, increasing the confidence level will narrow the confidence interval, and decreasing the confidence level widens the interval?

The upper limit of the 95% confidence interval for the population proportion p, given that n = 300; and f$hat{p}f$ = 0.10 is approximately 0.1339?

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1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours