An article on the BBC website states that of more than 25-billion e-mail messages monitored by the company Symantec, 46.4% were classified as junk. Suppose a company installed a new system for identifying junk messages and then diverting them to the spam folder. A random sample of 1,000 incoming messages were selected, and of these 488 were declared to be junk. If we assume that the 46.4% figure is the true percentage, then based on the sample data, does it look like this company receives a higher proportion of junk messages than the population in general? Test using the alpha = 0.01 level.

For this question formulate Null and Alternative hypotheses, then answer the question.

L A|B|C|DEF|G|H|I|J| 'I'IDI'lrl An article on the BBC website states that of more than 25billion email messages monitored by the cpmapny symantec, 46.4% were classied as junk. Suppose a company installed a new system for identifying junk messages and then diverting them to the spam folder. A random sample of 1,000 incoming messages were selected, and of these 438 were declared to be junk. If we assume that the 46.4% gure is the true percentage, then based on the sample data, does it look like this company recieves a higher proportion ofjunk messages than the population in general? Test using the alpha = 0.01 level. For this question formulate Null and Alternative hypotheses, then answer the