The data for the first 100 infants in the study are given in the Data Set INFANTBP.DAT on the Companion Website. The format of the data is given in Data Set INFANTBP.DOC on the Companion Website. Construct a variable measuring the response to salt. For example, one possibilty is to compute the average MSB for trials 3 & 4 - averag eMSB for trials 1 & 2=average MSB when the solution was 0.1 molar salt+water-average MSBw when the soution was water. A similar index could be computed comparing trials 7&8 with trials 5&6.
Obtain descriptive statistics and graphic displays for these salt-taste indices. Do the indices appear to be normally distributed? Why or Why not? Compute the sample mean for this index, and obtain 95% Cls about the point estimate.
Construct indices measuring responsiveness to sugar taste, and provide descriptive statistics and graphical dis-plays for these indices. Do the indices appear normally distributed? Why or why not? Compute the sample mean and associated 95% CIs for these indices.
We want to relate the indices to blood-pressure level.Provide a scatter plot relating mean SBP and mean DBP, respectively, to each of the salt-taste and sugar-taste indices.Does there appear to be a relation between the indices and blood-pressure level?