Question

QUESTION 6 Research examining the effects of preschool childcare has found that children who spent time in day care perform better on language tests than children who stay home with their mothers. For all children, the average standardized reading score for 4 year old children is 52.5 (out of 100 possible). Marcy, who runs a day care, wanted to examine 4 year olds in her daycare in comparison to this national average. She gave the standardized reading score to ten 4 year old children in her daycare and got the following O t- 1.229, and the critical t value is 2.228 Ot-2.315, and the critical t value is 2.228 2.587, and the critical t value is 2.262 t= 2.848, and the critical t value is 2.262

Answer 1