There is a very popular lottery in which a ticket is called a scratcher. In this lottery, 43% of the scratchers are winn

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There Is A Very Popular Lottery In Which A Ticket Is Called A Scratcher In This Lottery 43 Of The Scratchers Are Winn 1 (30.61 KiB) Viewed 7 times

There Is A Very Popular Lottery In Which A Ticket Is Called A Scratcher In This Lottery 43 Of The Scratchers Are Winn 2 (21.34 KiB) Viewed 7 times

There is a very popular lottery in which a ticket is called a scratcher. In this lottery, 43% of the scratchers are winning ones. Suppose that we will take a random sample of 10 scratchers. Let p represent the proportion of winning scratchers from the sample. Consider the sampling distribution of the sample proportion p. Complete the following. Carry your intermediate computations to four or more decimal places. Write your answers with two decimal places, rounding if needed. (a) Find (the mean of the sampling distribution of the sample proportion). P μ₁₁ = 0 P X (b) Find σ (the standard deviation of the sampling distribution of the sample proportion). P =0 on X ?
Alcohol withdrawal occurs when a person who uses alcohol excessively suddenly stops the alcohol use. Studies have shown that the onset of withdrawal is experienced a mean of 40 hours after the last drink, with a standard deviation of 18 hours. A sample of 34 people who use alcohol excessively is to be taken. What is the probability that the sample mean time between the last drink and the onset of withdrawal will be 39 hours or more? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places. [ ?