Construct a variable measuring the response to salt. For example, one possibility is to compute the average MSB for trials 3 and 4- average MSB for trials 1 and 2 = average when the solution was 0.1 molar salt + water - average MSB when the solution was water. A similar index could be computed comparing trials 7 and 8 with trials 5 and 6. (MSB-mean number of sucks per burst of sucking).
6.56 Obtain descriptive statistics and graphic displays for these salt-tatste 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.
6.57 Construct indices measuring responsiveness to sugar tatse, and provide descriptive statistics and graphical displays for these indices. Do the indices appear normally distributed ? Why or why not ? Compute the sample mean and associated 95 % Cls for these indices.
6.58 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?
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