Test the hypothesis of independence. Use the a=0.01 level of significance and the P-value method with the TI-84 Plus calculator. What do you conclude?

Surveys were conducted with every 7 households in Muscogee County, asking individuals to report information on their household, such as age, sex, race, education, income levels, and current health care needs. The purpose of the study was to describe the population of Muscogee County and assess the current health care needs of its constituents. 3. What research design was likely used to conduct this research? a. Case report b. Case series c. Ecological Study d. Cross-sectional (descriptive) e. Cross-sectional (analytic) f. Case-control study g. Retrospective cohort study h. Prospective cohort study i. Randomized clinical trial

I am struggling with part B of this question.

Suppose you have a data set that includes the values 20,30, and 50. If you add a fourth value to this data set, and after doing that the mean of the data set is 50, what was the value that you added? a) 20 b) 40 c) 50 d) 100

Each accountant at a large accounting firm was classified according to accountant level (junior or senior) and method of transportation to work (walk, bus, drive alone, or carpool). The responses of the 320 accountants at the firm are summarized in the table. Junior Senior Total Walk 25 3 28 Bus 87 12 99 Drive alone 96 25 121 Carpool 52 20 72 Total 260 60 320 What proportion of the accountants at the firm are at the senior level and carpool to work? 20 (A) 60 20 (B) 72 (C) 20 320 112 (D) 320 132 (E) 320

I need help with question #2, part d-e

There’s two part to this question. It has parts A-E.

a. Use the Colley method to come up with a rating for each team, then rank them. b. What were some of the strengths and weaknesses of this method?

A) What percentage of children who were surveyed said that they preferred cars? Group of answer choices 37% 11% 36% 24% 16% 52% B)What proportion of children ages 1-3 who were surveyed said that they preferred blocks? .0010 .049 .105 240 .360 c)hat proportion of those who preferred cars were in the 1-3 age group? 0.16 0.29 0.57 0.28 0.19 0.14 0.36

USE THE FOLLOWING INFORMATION TO ANSWER THE NEXT TWO QUESTIONS. At a particular university, 60 % of the students who apply for admission are in-state residents, 30 % are from other states, and the remaining applicants are international students. 35 % of in-state applicants are admitted, 25 % of applicants from other states are admitted, and 20 % of international applicants are admitted. 13) What percent of applicants are admitted?