if prakash gives one of the marble from what he possessses to kamala then they will have equal number of marbles. if kamala gives one of the marbles from what she posseses to prakash then prakash will have double number of marbles. find the number of marbles possesed by them initially.​

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.