Final answer:
To determine if attenders score higher than non-attenders, a hypothesis test comparing the two means is required, using an alpha level of 0.05.
Step-by-step explanation:
The question is asking whether there is enough statistical evidence to conclude that mothers who attended prenatal classes (attenders) have higher scores on a test measuring attitudes toward labor and delivery experiences than mothers who did not attend (non-attenders).
To answer this, we need to conduct a hypothesis test comparing the two means. Given an alpha level (α) of 0.05, we would calculate the test statistic, compare it to a critical value or use a p-value approach, and determine whether to reject the null hypothesis that there is no difference between the two group means.
If the calculated test statistic is greater than the critical value or if the p-value is less than α, we would reject the null hypothesis, suggesting that there is a statistically significant difference, with attenders having higher scores. If not, we fail to reject the null hypothesis, indicating that the evidence does not support the idea that attenders score higher on the test than non-attenders.
The complete question is: A test designed to measure mothers' attitudes toward their labor and delivery experiences was given to two groups of new mothers. Sample 1 (attenders) had attended prenatal classes held at the local health department. Sample 2 (non attenders) did not attend the classes. The sample sizes and means and standard deviations of the test scores were as follows: Do these data provide sufficient evidence to indicate that attenders, on the average, score higher than non attenders? Let α=0.05 is: