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please help stats, both questions if possible 1. Listed below are numbers of Internet users per 100 people and numbers of scientific award winners per
please help stats, both questions if possible
1. Listed below are numbers of Internet users per 100 people and numbers of scientific award winners per 10 million people for different countries. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.01. Internet Users 80.2 80.2 57.2 67.0 78.7 38.4 Award Winners 5.7 9.3 3.3 1.7 10.7 0.1 Construct a scatterplot. Choose the correct graph below. O A. OB O C. O D. 127 127 12 7 12TT Award Winners Award Winners Award Winners Award Winners 20 20 30 90 Internet Users Internet Users Internet Users Internet Users The linear correlation coefficient is r= (Round to three decimal places as needed.) Determine the null and alternative hypotheses. Ho : P (1) H1: P (2) (Type integers or decimals. Do not round.) The test statistic is t = (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) Because the P-value of the linear correlation coefficient is (3) the significance level, there (4) sufficient evidence to support the claim that there is a linear correlation between Internet users and scientific award winners. (1) = (2) O ( 3 ) O greater than (4) O is OO O O less than or equal to O is not O = O A 2. Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x = 102.93, y = 103.25, r= 0.886, P-value = 0.000, and y = - 4.91 + 1.05x, where x represents the IQ score of the twin born second. Find the best predicted value of y given that the twin born second has an IQ of 100? Use a significance level of 0.05Step by Step Solution
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