People have been using Cameras for private daily use since the 1880s and the fir

Question

People have been using Cameras for private daily use since the 1880s and the first Kodak camera cost a lot of money in those days. Today we wish to see if the size of the camera can be used to predict the cost. The data is given below: Y cost in dollars x weight in ounces y 1300, 250, 350, 400, 150, 180, 140, 300, 300, 200) x (6, 5, 7, 5, 6,6,4,6,6, 5) The following information is available for you to use in the analysis of this topic. n=10 x-5.6 257 ssxy-248 SSxx-6.4 SSyy-69010 What is the correct decision? Do not reject Ho Reject Ho Reject Ha none of these

Explanation / Answer

as P value is very high ; we can not reject null hypothesis

therefore correct option is:

Do not reject Ho

correlation coefficient r= Sxy/(Sxx*Syy)               = 0.3732 test statistic:                t= r*((n-2)/(1-r2)) = 1.14 P value    = 0.2882

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