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The average American consumes 96 liters of alcohol per year. Does the average college student consume more alcohol per year? A researcher surveyed 14 randomly

The average American consumes 96 liters of alcohol per year. Does the average college student consume more alcohol per year? A researcher surveyed 14 randomly selected college students and found that they averaged 103.6 liters of alcohol consumed per year with a standard deviation of 23 liters. What can be concluded at the the = 0.05 level of significance?

  1. For this study, we should use Select an answer t-test for a population mean z-test for a population proportion
  2. The null and alternative hypotheses would be:

H0:H0: ? p Select an answer = > < Correct

H1:H1: ? p Select an answer > = < Correct

  1. The test statistic ? z t = (please show your answer to 3 decimal places.)
  2. The p-value = (Please show your answer to 4 decimal places.)
  3. The p-value is ? >
  4. Based on this, we should Select an answer fail to reject reject accept the null hypothesis.
  5. Thus, the final conclusion is that ...
    • The data suggest the population mean is not significantly more than 96 at = 0.05, so there is statistically insignificant evidence to conclude that the population mean amount of alcohol consumed by college students is equal to 96 liters per year.
    • The data suggest the populaton mean is significantly more than 96 at = 0.05, so there is statistically significant evidence to conclude that the population mean amount of alcohol consumed by college students is more than 96 liters per year.
    • The data suggest that the population mean amount of alcohol consumed by college students is not significantly more than 96 liters per year at = 0.05, so there is statistically insignificant evidence to conclude that the population mean amount of alcohol consumed by college students is more than 96 liters per year.

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