Mathematics, 27.03.2020 18:28 megamorph
The average birthweight for babies in the United States is 3,325 grams with σ = 525. A researcher wishes to test whether or not a sample of 250 women in a rural community have a significantly different average birthweight than the national average at the α = 0.05 level. The mean birthweight for the sample of women in the rural community is 3400 grams.
a) what is the degree of freedom in this study?
b)what is the test statistic?
c) is the finding statistically significant?
Answers: 2
Mathematics, 21.06.2019 14:40, alexnunez07
Multiplying an even number of negative numbers gives an answer that is choose from:
Answers: 3
Mathematics, 21.06.2019 15:00, camila9022
Can someone answer it, and plot it, for 20 points and brainliest answer? p. s. they're the same ! : )
Answers: 1
The average birthweight for babies in the United States is 3,325 grams with σ = 525. A researcher wi...
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