Concept explainers
Special Rounding Instructions When you perform logistic regression, round the r value to three decimal places and the other parameters to two decimal places. Round all answers to two decimal places unless other-wise indicated.
PTA Participation A school board has a plan to increase participation in the PTA. Currently only about
a. What is the carrying capacity K for a logistic model of P versus m?
b. Find the constant b for a logistic model.
c. Find the r value for a logistic model. Round your answer to three decimal places.
d. Find a logistic model for P versus m.
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FUNCTIONS AND CHANGE COMBO
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- Noise and Intelligibility Audiologists study the intelligibility of spoken sentences under different noise levels. Intelligibility, the MRT score, is measured as the percent of a spoken sentence that the listener can decipher at a cesl4ain noise level in decibels (dB). The table shows the results of one such test. (a) Make a scatter plot of the data. (b) Find and graph the regression line. (c) Find the correlation coefficient. Is a linear model appropriate? (d) Use the linear model in put (b) to estimate the intelligibility of a sentence at a 94-dB noise level.arrow_forwardWhat is interpolation when using a linear model?arrow_forward21 see picarrow_forward
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