University personnel are concerned about the sleeping habits of students and the negative impact on academic performance.  In a random sample of 377 U.S. college students, 209 students reported experiencing excessive daytime sleepiness (EDS).  Is there sufficient evidence to conclude that more than half of U.S. college students experience EDS?  Use a 5% level of significance. What is a 90% confidence interval estimate for the proportion of all of U.S. college students who experience excessive daytime sleepiness? a)You have already listed the conditions, now check the condition for the normality of the sampling distribution of p-hat for confidence interval estimation. b)Write down the confidence level and the z* critical value.

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