Consumer product testing groups commonly supply ratings of all sorts of products to consumers in an effort to assist them in their purchase decisions. Different manufacturers€™ products are usually tested for their performance and then given an overall rating. PC World ranked the top ten 17-inch computer monitors and also supplied the street price (dollars). The ranks of each are shown in the table that follows, with the highest-priced monitor given a rank of 1 and the lowest a rank of 10.

a. Compute the Spearman rank correlation coefficient for the overall rating and the street price of the 17-inch monitors.
b. Does a higher price yield a higher rating? Test the null hypothesis that there is no relationship between the overall ratings of the monitors and their street prices versus the alternative that there is a positive relationship between them. Use a = 0.05.

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Street Price Street Price Overall Rati Rank Overall Rating Rank 8.5 6.5 2 4 6.5 8.5 5 4 5 10 TO