Info

Note: This table gives the area in the right-hand tail of the distribution (i.e., Z > 0). But since the normal distribution is symmetrical about Z = 0, the area in the left-hand tail is the same as the area in the corresponding right-hand tail. For example, P(-1.96 < Z < 0) = 0.4750. Therefore, P(-1.96 < Z < 1.96) = 2(0.4750) = 0.95.

Note: This table gives the area in the right-hand tail of the distribution (i.e., Z > 0). But since the normal distribution is symmetrical about Z = 0, the area in the left-hand tail is the same as the area in the corresponding right-hand tail. For example, P(-1.96 < Z < 0) = 0.4750. Therefore, P(-1.96 < Z < 1.96) = 2(0.4750) = 0.95.

APPENDIX D: STATISTICAL TABLES 961

TABLE D.2 PERCENTAGE POINTS OF THE t DISTRIBUTION Example

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