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{"ops":[{"insert":"The manufacturer of a patent medicine claimed that it is effective in relieving 90% of the "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"people suffering from the disease. From a sample of 200 people using the medicine 160 "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"were relived of suffering. Determine if the claim is legitimate."},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"21) In 324 throws of a six face die odd points appeared 181 times. Would you say that the die "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"is \u2018fair\u2019? State the level of significance, you use."},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"22) In a random sample of 400 persons taken from a large population 120 were females. Can "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"it be said that male and females are in the ration 5:3 in the population. Use 1% level of "},{"insert":"\n"},{"insert":""},{"insert":"\n"},{"insert":"significance."},{"insert":"\n"}]}

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