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The accepted value of the standard deviation of the pollution byproducts in the burning of gas...

The accepted value of the standard deviation of the pollution byproducts in the burning of gas is 2.28 ounces. A researcher claims it is less. A sample of 22 cars tested produced a standard deviation of 1.86 ounces. Test the claim at alpha = 0.05.

part1: tell what type of test (right, left, or two-tailed).

Part 2: fill in the space provided with your Chi-square value(s) (from the Chi-square tables) for any critical boundary.

part 3:, fill in the space provided with your calculated  Chi-square value.

part 4:, answer True or False as to the rejection of the null hypothesis.

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