Women are recommended to consume 1700 calories per day. You suspect that the average calorie intake is different for women at your college. The data for the 12 women who participated in the study is shown below: 1808, 1681, 1723, 1847, 1808, 1858, 1461, 1449, 1631, 1635, 1815, 1874 Assuming that the distribution is normal, what can be concluded at the αα = 0.01 level of significance? For this study, we should use     The null and alternative hypotheses would be:       H0:H0:                   H1:H1:               The test statistic     =  (please show your answer to 3 decimal places.) The p-value =  (Please show your answer to 4 decimal places.) The p-value is     αα

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Women are recommended to consume 1700 calories per day. You suspect that the average calorie intake is different for women at your college. The data for the 12 women who participated in the study is shown below:

1808, 1681, 1723, 1847, 1808, 1858, 1461, 1449, 1631, 1635, 1815, 1874

Assuming that the distribution is normal, what can be concluded at the αα = 0.01 level of significance?

  1. For this study, we should use    
  2. The null and alternative hypotheses would be:     

 H0:H0:                 

 H1:H1:              

  1. The test statistic     =  (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     αα
  4. Based on this, we should      the null hypothesis.
  5. Thus, the final conclusion is that ...
    • The data suggest the population mean is not significantly different from 1700 at αα = 0.01, so there is sufficient evidence to conclude that the population mean calorie intake for women at your college is equal to 1700.
    • The data suggest the populaton mean is significantly different from 1700 at αα = 0.01, so there is sufficient evidence to conclude that the population mean calorie intake for women at your college is different from 1700.
    • The data suggest that the population mean calorie intake for women at your college is not significantly different from 1700 at αα = 0.01, so there is insufficient evidence to conclude that the population mean calorie intake for women at your college is different from 1700.
  6. Interpret the p-value in the context of the study.
    • If the population mean calorie intake for women at your college is 1700 and if you survey another 12 women at your college then there would be a 71.7667579% chance that the population mean would either be less than 1684 or greater than 1716.
    • If the population mean calorie intake for women at your college is 1700 and if you survey another 12 women at your college, then there would be a 71.7667579% chance that the sample mean for these 12 women would either be less than 1684 or greater than 1716.
    • There is a 71.7667579% chance of a Type I error.
    • There is a 71.7667579% chance that the population mean calorie intake for women at your college is not equal to 1700.
  7. Interpret the level of significance in the context of the study.
    • If the population mean calorie intake for women at your college is different from 1700 and if you survey another 12 women at your college, then there would be a 1% chance that we would end up falsely concuding that the population mean calorie intake for women at your college is equal to 1700.
    • There is a 1% chance that the population mean calorie intake for women at your college is different from 1700.
    • If the population mean calorie intake for women at your college is 1700 and if you survey another 12 women at your college, then there would be a 1% chance that we would end up falsely concuding that the population mean calorie intake for women at your college is different from 1700.
    • There is a 1% chance that the women at your college are just eating too many desserts and will all gain the freshmen 15.
    •  

 

 
 
 
 
 
 
 
 
 
 
 
 
 
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