Question

Suppose we want to test the hypothesis that mothers with low socio-economic status (SES) deliver babies whose birth weights are lower than normal". A random sample of 45 full-term, live-born deliveries from maternity ward of a hospital in a low-SES area is collected. The mean birth weight is found to be 3.4 kg with standard deviation of 0.6 kg. Test whether the underlying mean birth weight from this hospital is lower than 3.5 kg At 1% level of significance, the decision is to reject the null hypothesis (use values 1 and 0 for TRUE and FALSE respectively).

          Suppose we want to test the hypothesis that mothers with low socio-economic status (SES) deliver babies whose birth weights are lower than normal". A random sample of 45 full-term, live-born deliveries from maternity ward of a hospital in a low-SES area is collected. The mean birth weight is found to be 3.4 kg with standard deviation of 0.6 kg. Test whether the underlying mean birth weight from this hospital is lower than 3.5 kg

 

At 1% level of significance, the decision is to reject the null hypothesis (use values 1 and 0 for TRUE and FALSE respectively).

Added by Bianca L.

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