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You are conducting a left-tailed test of a claim about a population mean when sigma is unknown with a sample size of 27. If a = .10, find the critical value, to two decimal places.You are conducting a two-tailed test of a claim about a population mean when sigma is unknown with a sample size of 39. If a = 0.2, find the positive critical value, to two decimal places.You are conducting a right-tailed test of a claim about a population mean when sigma is known . If a = .05, find the critical value, to two decimal places.You are conducting a two-tailed test of a claim about a population mean when sigma is known . You also have statistics from a sample of 13. If a = 0.1, find the positive critical value, to two decimal places.In a sample of 100r it was found that 59% of the people minded if others smoke near a building entrance. We wish to test the claim that the population proportion is 56%. Express the claim and the hypotheses in symbolic form for this claim, then answer the questions below. (1)Parameter Select the parameter symbol to be used to state the claim and hypotheses. x-bar mu pA P 05" Now enter the rest of the hypotheses statements without the parameter symbol. When entering decimal answers, make sure to place a zero before the decimal point. Use the following codes to enter the following symbols: 2 enter >2 5 enter = 3 enter 2 3 enter