A medical researcher wondered if there is a significant difference between the m
ID: 3326068 • Letter: A
Question
A medical researcher wondered if there is a significant difference between the mean birth weight of boy and girl babies. She weighed a random sample of five babies of each gender. Their weights (pounds) are shown below, along with some MegaStat results.
The population means:
a. are not relevant to this paired t-test.
b. should be assumed unequal at any customary .
c. may be assumed equal at any customary .
Girls Boys 5,.920 5.740 mean 1881 1.813 std. dev 5 8 df 0.1800 difference (Boys - Girls) 3.4125 pooled variance 1.8473 pooled std. dev 1.1683 standard error of difference 0 hypothesized difference 0.15 t 4407 p-value (one-tailed, upper)Explanation / Answer
In the given output it is evident that p-value is greater than the significance level of 0.05. This means we fail to reject the null hypothesis.
This shows from the given data we can not conclude that the mean birth weight of baby boy and girl are different.
The population means are not different.
c. may be assumed equal at any customary .
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