Stuck: Given that the cholesterol of heart attack patients is normally distributed.

[Coachdwhite02]

Given that the cholesterol of heart attack patients is normally distributed. Let denote the mean cholesterol of heart attack patients under the age of 50. The American Medical Association (AMA) has claimed that cholesterol levels of 240 and higher dramatically increase the risk of heart attacks. A random sample of the cholesterol levels of 15 heart attack patients age 50 and under yields x-bar = 247 and a standard deviation of 17.3. Using a significance level of .05, does the sample data support the hypothesis that heart attack patients under the age of 50 have mean cholesterol level greater than 240? (write in complete context, include the possible error and it’s consequences )

 

[Deleted member 4993]

Given that the cholesterol of heart attack patients is normally distributed. Let denote the mean cholesterol of heart attack patients under the age of 50. The American Medical Association (AMA) has claimed that cholesterol levels of 240 and higher dramatically increase the risk of heart attacks. A random sample of the cholesterol levels of 15 heart attack patients age 50 and under yields x-bar = 247 and a standard deviation of 17.3. Using a significance level of .05, does the sample data support the hypothesis that heart attack patients under the age of 50 have mean cholesterol level greater than 240? (write in complete context, include the possible error and it’s consequences )

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