Recycling newsprint is important in reducing waste. The article "The Influence ofNewspaper Aging on Optical Properties of its De-inked Pulp" (M. Rahmaninia, A. Latibari,et al., Turkish J Eng Env Sci, 2008:35-39) presents the results of an experiment todetermine the effects of the age of newsprint on the brightness (in percent) of the recycledpaper. Four aging periods were considered, along with five concentrations of sodiumhydroxide (NaOH), used to de-ink the paper. The effect of the sodium hydroxideconcentration is not of interest. The results are presented in the following table.NaOH ConcentrationAge (Months)2%0%0.5%1%1.5%54.654.355.556.356.6445.644.143.745.647.146.145.946.445.047.91244.044.145.243.746.5a. Identify the blocking factor and the treatment factor.b. Construct an ANOVA table. You may give ranges for the P-values.Can you conclude that brightness differs with age? Explain.C.d.Which pairs of ages, if any, can you conclude to have differing brightnesses? Use the5% level.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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For 7-8: Assume that all necessary conditions are met for the hypothesis tests we have studied. a. Formulate the null and alternative hypotheses using mathematical symbols. b. Explain which type of test should be used and why. c. Decide between one-tailed or two-tailed test and sketch an appropriate distribution curve with the appropriate critical value(s) shown on the horizontal axis. d. Calculate relevant sample statistics and the appropriate test value, all to four decimal places. e. Compute the p-value using a cdf in your calculator (write which calculator menu item was used), and shade in the corresponding area on your sketch. f. Verify all results using the Stat -> TESTS Menu in the calculator (write which menu item was used). Write the test value and p-value given by the calculator without rounding at all. g. Decide whether to reject the null or not reject the null, and explain why using both the traditional method and p-value method. h. Rephrase your final decision as a…
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