Lecture Activity 1: z-scores and Letter Grades Based on the frequency table, what letter grade would approximately correspond with a z-score of: 2. Z = -0.90 & z = 0.90 Z = -1.10 & z = 1.10 4. Z = -1.50 & z = 1.50 F- (046) D-. D. D+ C-. C. C+ B-, B, B+ |A-, A A+ (100%) Z = -1.90 & z = 1.90 10 136 682 136 21 10 Z = -2.10 & z =2.10 34 198 Z = -2.50 & z = 2.50 0.4 - z = 2.90 & z = -2.90 Z =-3.00 & z 2 3.00 0.3 4 13.6 3 13.69% 0 2 Hint: Compare the frequencies in the table with the %% s-( in the graphic 2.1% 2.1% 0.1% Hint: Bottom numbers represents distance from the distribution's M in standard deviations units (6)_Lecture Activity 2: Significant, or Not Significant? - For each of the p-values below, indicate whether or not: . It indicates a statistically significant effect OR a non-significant (NS) effect .Whether you should reject the null hypothesis (H.) OR whether you should fail to reject the null hypothesis Lp = .060 2. p=.049 3. P =.490 4. P = .085 5. p = . 101 6. P=.920 7. p =.022 .p = .010 .p <.001 p=".">