Find the t-value(s) for each of the following cases. Round your answers to 3 decimal places, Enter negative values as negative number. a. Upper tail area of .025 with 15 degrees of freedom is 2.131 b. Lower tail area of .05 with 50 degrees of freedom is -1.676 c. Upper tail area of 20 with 35 degrees of freedom is 0.852 d. Where 90% of the area falls between these two f-values with 20 degrees of freedom. -1.725 -1.725) e. Where 99% of the area falls between these two t-values with 45 degrees of freedom. -2.690 2.690

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