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In: Statistics and Probability

Conduct a hypothesis test to answer the following research question. Be sure to clearly state each...

Conduct a hypothesis test to answer the following research question. Be sure to clearly state each step of a hypothesis in your response as well as indicating your critical regions, computing obtained statistic and drawing a conclusion.

Does prenatal exposure to alcohol impact birth weight (test n = 16 newborn rats)

Population Values : μ = 18 grams   σ = 4 grams

Sample Mean: M = 15 grams

Solutions

Expert Solution

Solution :

= 18

=15

=4

n = 16

This is the two tailed test .

The null and alternative hypothesis is ,

H0 :    = 18

Ha :     18

Test statistic = z

= ( - ) / / n

= (15-18) / 4 / 16

= - 3

Test statistic = z = - 3.00

P-value = 2 *0.0013 = 0.0026

orchestra answered 2 years ago
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