Agroup of veterinary researchers plan a study to estimate the average number of enteroliths in horses suffering from them. previously research has shown the variability in the number to be σ = 2. the researchers wish the margin of error to be no larger than 0.5 for a 99% confidence interval. to obtain such a margin of error the researchers need at least:

If the null hypothesis is false and the researchers do not reject it a type 2 error has been made. true or false

Mr. chiu made a dot plot after asking his students a question. based on the dot plot, which statements are correct? check all that apply. eleven students answered mr. chiu's question. twelve students answered mr. chiu's question. three people studied for two hours. three people studied for three hours. everyone who responded studied for at least one hour. four people studied for four or more hours

Last month sarah ryan and taylor received a total of 882 emails if sarah receive 25% more emails than the sum of the numbers of emails received by ryan and taylor how many emails and sarah receive