The paint used to make lines on roads must reflect enough light to be clearly visible at night. Let u denote the true av

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The Paint Used To Make Lines On Roads Must Reflect Enough Light To Be Clearly Visible At Night Let U Denote The True Av 1 (68.09 KiB) Viewed 105 times

The paint used to make lines on roads must reflect enough light to be clearly visible at night. Let u denote the true average reflectometer reading for a new type of paint under consideration. A test of Ho: u = 20 versus Hai u > 20 will be based on a random sample of size n from a normal population distribution. What conclusion is appropriate in each of the following situations? (Give critical values to 2 decimal places and P-values to 4 decimal places.) (a) n = 13, t = 3.2, a = .05 Reject Ho, based on a critical value of or a p-value of (b) n = 8, t = 1.8, a = .01 Fail to reject Ho, based on a critical value of or a P-value of (c) n = 25, t = -0.2, a = .05 Fail to reject Ho, based on a critical value of or a P-value of