A bar graph with type of reading material on the x-axis, and number on the y-axis. For grade 6, 9 chose books, 9 chose comics, 2 chose magazines, 0 chose other. For grade 7, 5 chose books, 8 chose comics, 5 chose magazines, and 2 chose other. For grade 8, 7 chose books, 7 shoes comics, 4 chose magazines, and 2 chose other. Mr. Rodriguez used a random sample of 20 students from each grade at Willowbrook School to determine their favorite types of reading material. He made a graph of the results. What can he infer from the results? Overall, students are less interested in reading magazines than comics. Students are less interested in reading comics than magazines. Students prefer magazines to books. 7th-grade students prefer books

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.

Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10