Question

Question 16 Child Health and Development Studies (CHDS) has been collecting data about Type numbers in the boxes. expectant mothers in Oakland, CA since 1959. One of the measurements taken 10 points by CHDS is the weight increase (in pounds) for expectant mothers in the second trimester. In a fietitious study, suppose that CHDS finds the average weight increase in the second trimester is 14 pounds. Suppose also that, in 2015, a random sample of 33 expectant mothers have mean weight increase of 15.8 pounds in the second trimester, with a standard deviation of 5.7 pounds. Ahypothesis test is done to see if there is evidence that weight increase in the second trimester is greater than 14 pounds. Find the p-value for the hypothesis test. The p-value should be rounded to 4 decimal places.

Answer 1

- Ho.l=14 V/ Hoill> 14 Given & n = 33 7 = 15.8 s=5.1 honen is large ien> 30 henu un a use - test is Under to the 2= X-Mo test statistics No11) z = 1.8141 – 15.8-19 5.7/133 P-value = P(2>1.8141) IP-value = 0.0348