The Northern Area Health Service conducted a telephone survey in which subjects were asked the number of servings of veg
Posted: Mon Jul 11, 2022 11:16 am
The Northern Area Health Service conducted a telephonesurvey in which subjects were asked the number of servings ofvegetables they had consumed the previous day. It is believedthat a healthy diet consists of at least five servings ofvegetables per day. Ofthe 151 males agedbetween 25 and 40interviewed, 105 respondedthat they had consumed five or more servings of vegetables theprevious day.
1. What is the sample proportion of males who consume five ormore servings of vegetables per day? (2 dp).....
2. What is the estimated standard error of the sampleproportion? (3 dp) ....
3. What is the lower limit of the 95% CI for p? (3 dp) .....
4. What is the upper limit of the 95% CI for p? (3 dp).....
Nutritionists believe thatonly 57% of men inthis age-range consume enough vegetables.
5. The null hypothesis is H0: p =? (2 dp).....
6. What is the standard error of the sample proportion? (2dp) .....
7. What is the absolute value of the test statistic (usinga z-test)? (2 dp) ....
8. What is the P-value associated with this test? (3 dp) ....
9. Using a 5% significance level what would be your decision? (reject / do not reject )
1. What is the sample proportion of males who consume five ormore servings of vegetables per day? (2 dp).....
2. What is the estimated standard error of the sampleproportion? (3 dp) ....
3. What is the lower limit of the 95% CI for p? (3 dp) .....
4. What is the upper limit of the 95% CI for p? (3 dp).....
Nutritionists believe thatonly 57% of men inthis age-range consume enough vegetables.
5. The null hypothesis is H0: p =? (2 dp).....
6. What is the standard error of the sample proportion? (2dp) .....
7. What is the absolute value of the test statistic (usinga z-test)? (2 dp) ....
8. What is the P-value associated with this test? (3 dp) ....
9. Using a 5% significance level what would be your decision? (reject / do not reject )