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Assume that the amounts of weight that male college students gain during their freshman year are normally distributed with a mean of u = 1.3
Assume that the amounts of weight that male college students gain during their freshman year are normally distributed with a mean of u = 1.3 kg and a standard deviation of o = 4.9 kg. Complete parts (a) through (c) below. a. If 1 male college student is randomly selected, find the probability that he gains between 0 kg and 3 kg during freshman year. The probability is] (Round to four decimal places as needed.) b. If 16 male college students are randomly selected, find the probability that their mean weight gain during freshman year is between 0 kg and 3 kg. The probability is (Round to four decimal places as needed.) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? O A. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample size. O B. Since the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size. O C. Since the distribution is of individuals, not sample means, the distribution is a normal distribution for any sample size. O D. Since the weight gain exceeds 30, the distribution of sample means is a normal distribution for any sample size.Identify the level of measurement of the data, and explain what is wrong with the given calculation. In a set of data, mood levels are represented as 0 for bad, 1 for OK, and 2 for good. The average (mean) of the 645 mood levels is 0.9 The data are at the level of measurement What is wrong with the given calculation? O A. The true average (mean) is 1.0 O B. One must use a different method to compute the average (mean) of such data. O C. Such data should not be used for calculations such as an average (mean) O D. There is nothing wrong with the given calculation.STAT 200 4020 - Mobasheran - Spring 2022 Test: Final Exam
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