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A cell phone company wants to determine whether the use of text messaging is independent of age. A random sample of 300 customers were asked:

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A cell phone company wants to determine whether the use of text messaging is independent of age. A random sample of 300 customers were asked: "Do you regularly use text messaging?" The following data has been collected. Using 0.01 level of significance, test whether there is sufficient evidence to conclude that the use of text messaging is independent of age. (a) The alternative hypothesis will be phrased as: The use of text messaging is associated with the age. (Key in either True or False) (b) The appropriate critical value is in three decimal places: (c) Calculate the expected values in two decimal places, and fill in the respective blanks in the sequence C11,C21,C22, C32: (d) The test value is in three decimal places. (e) Decision of the test is to (Choose an option below. Key in letter A, B, C, D or E) A. Reject null hypothesis as the test value falis in the critical region B. Do not reject null hypothesis as the test value is less than the critical value C. Do not reject null hypothesis as the test value is more than the critical value D. Reject null hypothesis as the test value falls in the non-critical region E. Reject null hypothesis as the test value is less than the critical value (f) Conclusion to the test is: There is evidence to conclude that the use of text messaging is the age. (Choose an option below for each blank. Key in letter A, B, C, D or E) A. enough B. not enough A. Reject null hypothesis as the test value falls in the critical region B. Do not reject null hypothesis as the test value is less than the critical value C. Do not reject null hypothesis as the test value is more than the critical value D. Reject null hypothesis as the test value falls in the non-critical region E. Reject null hypothesis as the test value is less than the critical value (f) Conclusion to the test is: There is evidence to conclude that the use of text messaging is the age, (Choose an option below for each blank. Key in letter A, B, C. D or E) A. enough B. not enough C. not associated with D. associated with E. independent of

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