Assume that cans of cola are filled such that the actual amounts have a population mean of ? = 12.00 ounces. A random sample of 49 cans has a mean amount of 12.37 ounces. The distribution of sample means of size n = 49 is normal with an assumed mean of 12.00 ounces, and those sample means have a standard deviation of 0.04 ounce. Complete parts (a) through (c) below. a. How many standard deviations is the sample mean away from the mean of the distribution of sample means? (Round to two decimal places as needed.)
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The z-score is calculated using the formula: z = (x - Ī¼) / Ļ where x is the sample mean, Ī¼ is the assumed mean, and Ļ is the standard deviation of the sample means. In this case, the sample mean is 12.37 ounces, the assumed mean is 12.00 ounces, and the Show moreā¦
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