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To Investigate the effect of general hospital experience on the attitudes of physicians toward Medicare patients, a random sample of 50 physicians who had just completed 4 weeks of service in a general hospital were surveyed, generating the data in the table. Concern After Concern Before High Low Total Low 28 5 33 High 8 9 17 Chi-Square Test Test Statistic DF P-Value 7. 948 Do the data provide sufficient evidence to indicate an association between the level of concern after general hospital experience and the level of concern before? (Use a = 0.05. and the partial output from the Chi-Square test.) State the null and alternative hypotheses. O Ho: Level of concern after is dependent of level of concern before. Ha: Level of concern after is independent of level of concern before. O Ho: Level of concern after is independent of level of concern before. Ha: Level of concern after is dependent of level of concern before. O Ho: Level of concern after is independent of level of concern before. H.: Level of concern after is linearly related to level of concern before. O Ho: The physicians and Medicare patients have the same concerns. H.: The physicians and Medicare patients have different concerns. O Ho: Level of concern after is linearly related to level of concern before. Ha : Level of concern after is independent of level of concern before. State the degrees of freedom. df = Find the p-value. (Round to three decimal places) p-value = State the conclusion. O Ho is rejected. There is sufficient evidence to indicate the level of concern after is dependent on the level of concern before. O Ho is rejected. There is insufficient evidence to indicate the level of concern after is dependent on the level of concern before. O Ho is not rejected. There is insufficient evidence to indicate the level of concern after is dependent on the level of concern before. O Ho Is not rejected. There is sufficient evidence to indicate the level of concern after is dependent on the level of concern before. Do the data suggest a change in "concern" after the general hospital experience? If so, describe the nature of the change. O A large proportion of physicians appear to change their level of concern from high to low after general hospital experience. A large proportion of physicians appear to change their level of concern from low to high after general hospital experience. A small proportion of physicians appear to change their level of concern from low to high after general hospital experience