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What are the critical chi square values

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1.) A doctor claims that the standard deviation of systolic blood pressure is 12 mmHg. A random sample of 24 patients found a standard deviation of 14mmHg. Assume the variable is normally distributed. At a=0.01, what are the critical chi square values?
(please show work)

2.) A political strategist claims that 58% of voters in Madison County support his candidate. In a poll of 500 randomly selected voters, 260 of them support the strategist's candidate. At a=.05, is the political strategist's claim warranted? What is the test value? (please show work)

Reference no: EM13539171

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