ASSIGNMENT. SOLVE THE RELATIONSHIP OF THE 2 VARIABLES GIVEN THE DATA. SHOW YOUR SOLUTION USING PEARSON R. Subject Stress (x) Symptoms (y) | 1 30 99 27 94 3 80 4 20 70 5 3 100 6 15 109 7 5 62 10 81 9. 24 74 10 34 121

A U.S. Web Usage Snapshot indicated a monthly average of 36 Internet visits a particular website per user from home. A random sample of 30 Internet users yielded a sample mean of 38.5 visits with a standard deviation of 5.3. At the 0.02 level of significance can it be concluded that this differs from the national average? Assume the population is normally distributed. Find the P-value. Round answer to four decimal places. Make a decision and summarize your conclusion.

2. a) For the following information on a data set: Measurement Class .00- 75 .75-1.50 1.50-2.25 2.25-3.00 3.00-3.75 3.75-4.50 Find the value of k. 0.65 0.47 0.53 0.12 Relative Freq. .02 .01 .03 .05 .10 .14 Measurement Class 4.50-5.25 5.25-6.00 6.00-6.75 6.75-7.50 7.50-8.25 8.25-9.00 9.00-9.75 Relative Freq. .19 -15 k .09 .05 .04 .01

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