ONLY NEED THE ANSWER FOR C) preparation 1preparation30208.514171411191717153191512122114181614131241313161416141812211512101712 Question 10: We wish to compare the effect of two preparations of a virus on tobaccoplants. The study involves 20 plants. For each plant, half a leaf is inoculated with preparation1 and the other half is inoculated with preparation 2. The number of lesions are measuredand denoted as x1 and x2, respectively. The data are found in the file TOBACCO.txt.(a) Is it reasonable to assume that the difference of both measurements is normally dis-tributed? (Hint: Produce a quantile-quantile plot (or normal probability plot) for thedifferences.)(b) Do the preparations have a different effect on the tobacco plants? Justify your answerusing a test of hypothesis of Ho : µp = 0 against H1 : µp 7 0, where D is thedifference between the number of lesions when preparation 1 and the number of lesionswhen preparation 2 is used. Use a level of significance of a == 1%.(c) Give a 95% confidence interval for up. Using this interval, write 1 or 2 sentencescompare the mean effect of the two preparations.

Name: ONLY NEED THE ANSWER FOR C) preparation 1preparation30208.514171411191
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Description: ONLY NEED THE ANSWER FOR C) preparation 1preparation30208.514171411191717153191512122114181614131241313161416141812211512101712 Question 10: We wish to compare the effect of two preparations of a virus on tobaccoplants. The study involves 20 plants.