A researcher is going to perform a left-tailed hypothesis test. The test statistic will follow a standard normal distribution. Answer parts (a) and (b) below. You may use the tool below in the scratch work area to help you. Your work with the tool will not be graded. (a) The researcher might choose 0.01, (b) After choosing the level of 0.05, or 0.10 for the level of significance, the researcher takes a significance for the left-tailed test. sample and finds that the value of the For each potential choice for the test statistic is =- - 1 379. For which of level of significance, find the critical the levels of significance would the value. Round your answers to three null hypothesis be rejected? Choose decimal places. all that apply. 0 0.01 Criticalvalueat a - 0.01 : [ Criticalvalueat a - 0.05 : [ a 0.05 Criticalvalueat a - 0.10: [ a - 0.10 None of the above Scratch work (Not graded) Standard Normal Distribution Step 1: Select one-tailed or two-tailed. One-tailed Two-tailed Step 2: Enter the critical value(s). (Round to 3 decimal places.) Step 3: Enter the test statistic. (Round to 3 decimal places.)