One Sample Test for the Mean Hypothesis test results Sample Size 34 Lower one - tailed test Sample Mean 38. 67 7 Critical t-value* Sample Standard Deviation 7. 858 N- Value Hypothesized value* 0. 01 Conclusion Level of significance* 5'0 Upper one - tailed test 1- statistic Critical t-value One tailed t-value N- Value Two tailed t-value ( + and - ! Conclusion Two - tailed test Critical t-value ( + and - ) N- VALUE Conclusion