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Sample Assessment For Birthweights

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However, this may not be solely due to improvements in nutrition, and more information would be required to draw such a conclusion. This may be due to a series of factors influencing the birthweight of children which should be taken into consideration. The management of a local hospital have provided Ryan Data Consultants Ltd (RDC) will a sample survey they conducted in 2015 on birthweights and the variables that influence it; identified in Appendix 9. The hospital also provided a series of requests on how they wish to have the data interpreted and analysed by RDC. The following report contains this analysis, including a series of sample hypothesis tests, the examination of a multiple-regression model derived from the data, and a report …show more content…

We therefore define the hypotheses as follows for another two-sample examination; Where the null hypothesis, H0, estimates no difference between birthweights and the alternative, H1, believes that subtracting the average birthweight of a smoker will result in a positive value; inferring a lower mean birthweight. We then define the level of significance; Where the null estimates no difference in birthweight and the alternative believes subtracting the average weight at birth of indigenous children from non-indigenous will result in a positive value; indicating a lower mean score. Next, the level of significance can be defined; We can therefore make a population inference, and conclude that the average birthweight of children born from smokers is lower than those born from non-smokers. From this, we infer that the population average birthweight of non-indigenous children is greater than that of indigenous children; meaning that a disadvantage does exist amongst indigenous infants. Hospital management also expressed their interest in exploring whether the birthweight of a child could be predicted through the use of a multiple-regression model. This could assist staff in predicting which infants may be at risk of being born at a low birthweight. To do this, a multiple-regression can be derived from the sample data provided, which will assume the form; Where is the estimated

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