All of the following are required to renew a child development associate (cda) certificate except a. documented proof of a current red cross or other agency pediatric first aid certificate. b. documented proof of recent (within the past year) work experience with young children or families of young children (a minimum of 80 hours). c. a completed letter of recommendation form regarding the cda's competence with young children prepared by an early childhood education professional. d. a completed letter of recommendation form regarding the cda's competence with young children prepared by a parent from your center.

In a recent telephone survey, 5,000 randomly selected teenagers were asked to cite their primary social network site. six of 10 teenagers said they use mybook as their primary social network site. a 95% confidence interval to estimate the true proportion of teenagers who use mybook as their primary social network site is found to be (0.2964, 0.9036). which of the following is a correct interpretation of the confidence level? ninety-five percent of all samples of this size would yield a confidence interval of (0.2964, 0.9036). there is a 95% chance that the true proportion of teenagers who use mybook as their primary social network site is in the interval (0.2964, 0.9036). ninety-five percent of the time, the procedure used to generate this interval will capture the true proportion of teenagers who use mybook as their primary social network site. ninety-five percent of all the samples of size 5,000 lie in the confidence interval (0.2964, 0.9036).