Answer Happy

Tuberculosis (TB) is caused by a bacterium called Mycobacterium tuberculosis. The bacteria usually attack the lungs, but TB bacteria can attack any part of the body such as the kidney, and spine. The Center for Disease Control (CDC) indicates that about 35% of cases of tuberculosis in the lungs, 30% in the spine, and 35% in the kidneys. A TB researcher gathered her own data with a sample of 363 adults in the Greater Philadelphia aera (See table below for counts of each tuberculosis cases. Which one of the following statements is INCORRECT? (Alpha level is set at 0.05.) TB in TB in TB in kidneys Lungs Spine Observed 156 148 59 Cases O The expected frequency of TB in Spine is 108.9 cases. O One can conduct a chi-square goodness-of-fit test because the condition, Min[p1'n, p2ºn, and p3ºn] is greater or equal to 5, is met. O The obtained chi-square is 57. O The decision should be to accept the null hypothesis. O The null hypothesis of a chi-square goodness-of-fit test is p1-35%, p2-30%, p3-35%.