hat would you set your alpha-level at? Adrian examined the calcium intake in three groups of individuals with varying levels of bone mineral density. Group 1 had low bone mineral density, Group 2 had moderate levels of bone mineral density and Group 3 had high levels of bone mineral density. In order to determine the mean differences between the groups on calcium intake what statistical test would be best used in this scenario? Wh

The director of student services at Oxnard College is interested in whether women are less likely to attend orientation than 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 431 187 Yes 442 No 214 What can be concluded at the ax = 0.10 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer Select an answer Select an answer (please enter a decimal and note that p1 and μl represent the proportion and mean for women and p2 and 2 represent the proportion and mean for men.) H₁: Select an answer Select an answer Select an answer (Please enter a decimal) (please show your answer to 3 decimal places.) b. The test statistic c. The p-value = d. The p-value is ? a e. Based on this, we should Select an answer the…

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 355 395 No 247 239 What can be concluded at the a = 0.01 level of significance? For this study, we should use z-test for the difference between two population proportions a. The null and alternative hypotheses would be: V p2 Но: р1 that p1 and ul represent the proportion and mean for women and p2 and µ2 represent the proportion and mean for men.) vV (please enter a decimal and note H1: p1 p2 vv (Please enter a decimal) b. The test statistic -1.198 X (please show your answer to 3 decimal places.) c. The p-value = 0.2309 (Please show your answer to 4 decimal places.) d. The p-value is >v e. Based on this, we…

Miss America winners from the 1920's and 1930's had a average BMI of 19.4. A sample of recent winners had reported BMIs of 18.7, 18.7, 18.5, 19.2, 19.3, 18.7, 18.6, 19.8, 19, 19.6, and 19 . Do recent winners appear to be significantly different from those in the 1920s and 1930s? (assume normality). Show all the steps of a hypothesis.