Diet Thirteen overweight women volunteered for a study todetermine whether eating specially prepared crackers beforea meal could help them lose weight. The subjects wererandomly assigned to eat crackers with different types offiber (bran fiber, gum fiber, both, and a control cracker). Unfortunately, some of the women developed uncomfort-able bloating and upset stomachs. Researchers suspectedthat some of the crackers might be at fault. The contingencytable of “Cracker” versus “Bloat” shows the relationshipbetween the four different types of crackers and the reportedbloating. The study was paid for by the manufacturers of thegum fiber. What would you recommend to them about theprospects for marketing their new diet cracker? BloatLittle/None Moderate/Severe CrackerBran 11 2Gum 4 9Combo 7 6Control 8 4

These 2 questions go hand to hand

The director of student services at Oxnard College is interested in whether women are just as likely to attend orientation as men before they begin their coursework. A random sample of freshmen at Oxnard College were asked what their gender is and whether they attended orientation. The results of the survey are shown below: Data for Gender vs. Orientation Attendance Women Men Yes 440 410 No 238 239 What can be conduded at the a - 0.10 level of significance? For this study, we should use z-test for a population proportion a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v (please enter a decimal and note that p1 and ul represent the proportion and mean women and and u2 represent proportion and mean for men.) H: Select an answer v Select an answer v Select an answer v (Please enter a decimal) b. The test statistic ? v (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d.…

There are many ways to measure the reading ability of children. Research designed toimprove reading performance is dependent on good measures of the outcome. Onefrequently used test is the DRP, or Degree of Reading Power. A researcher suspects that themean score µ of all third- graders in Henrico County Schools is different from the nationalmean, which is 32. To test her suspicion, she administers the DRP to an SRS of 44 HenricoCounty third-grade students. The distribution of scores is summarized in the Minitab outputbelow: MEAN STDEV SEMEAN MIN Q1 MEDIAN Q3MAXDRP 35.09 11.19 1.69 14.00 26.00 35.00 44.0054.00 Construct a 90% confidence interval to estimate the mean DRP score in Henrico CountySchools.