According to a survey of 100 students in a certain university, 25 students are fans of Ravens. (a) Calculate a 95% confidence interval for the proportion of students that are fans of Ravens. (b) Interpret the interval you just found in part (a). (c) Assuming no any available information, how large a sample size is necessary if we want a 95% confidence interval with a width of 10%?

What’s the numerical coefficient of 6xy

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.