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 to points by CHDS is the weight increase in pounds) for expectant mothers in the second trimester. In a fictitious 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 34 expectant mothers have mean weight increase of 15.9 pounds in the second trimester, with a standard deviation of 6.2 pounds. A hypothesis 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. T ill 6:33 PM 11/10/2019

Answer 1

The statistical software output for this problem is:

One sample T summary hypothesis test: : Mean of population Ho! = 14 HA: > 14 Hypothesis test results: Mean Sample Mean Std. Err. DF T-Stat 15.9 1.0632912 33 1.7869046 P-value 0.0416

Hence,

P - value = 0.0416