Which hypothesis test would be used for the following research question? Are Alzheimer's rates really higher in women than men and is the longevity of women a factor?

Only the question 5 and 6 need to be resolved. Others have been reaolved already. Question: sample of 15, 10 years old children was taken to study whether watching television reduces the amount of physical exercise, causing weight gains. The number of kilograms each child was overweight by was recorded (a negative number indicates the child is underweight). In addition, the number of hours of television viewing per week was also recorded. These data are listed in the table below. Television(hours)             42   34   25   35   37   38   31   33   19    29   38   28   29   36   18 Overweight (Kg)                 8      3     0      0    6      6     3     3     -4     4     4      2     1     6     -3 Use an appropriate plot to investigate the relationship between Television(hours) and Overweight (KG). Briefly explain the selection of each variable on the X and Y axes and why?  Calculate and interpret the coefficient of correlation (r) between Television(hours) and Overweight (KG).…

What is H0? And why do we evaluate it instead of the scientific hypothesis?

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Read the journal excerpt below:Exposure to light at night suppresses the physiologic production of melatonin, a hormone that has antiproliferative effects on intestinal cancers. Although observational studies have associated night-shift work with an increased risk of breast cancer, the effect of night-shift work on the risk of other cancers is not known. We examined the relationship between working rotating night shifts and the risk of colorectal cancers among female participants in the Nurses’ Health Study. We documented 602 incident cases of colorectal cancer among 78 586 women who were followed up from 1988 through 1998. Compared with women who never worked rotating night shifts, women who worked 15 years or more on rotating night shifts were 1.35 times more likely to develop colorectal cancer (95% CI = 1.03 to 1.77), adjusting for confounders. These data suggest that working a rotating night shift at least three nights per month for 15 or more years may increase the risk of…

Populanty. 1.26 High school tobacco use. Despite the intense anti-smoking campaigns sponsored by both federal and private agencies, smoking continues to be the single-biggest cause of preventable death in the United States. How has the tobacco use of high school students changed over the past few years? For each of several tobacco products, high school students were asked whether they had used each of them in the 18 past 30 days. Here are some of the results: Year Product 2011 2012 2013 2014 2015 Any tobacco product 24.3 23.3 22.9 24.6 25.3 Cigarettes 15.8 14.0 12.7 9.2 9.3 Cigars 12.6 11.6 11.9 8.2 8.6 Pipes 4.5 4.0 4.1 1.5 1.0 Smokeless tobacco 7.3 6.4 5.7 5.5 6.0 E-cigarettes 1.5 2.8 4.5 13.4 16.0 The first row of the table gives the percentages of high school students who had used any tobacco product including cigarettes, pipes, cigars, smokeless tobacco, e-cigarettes, hookahs, snus, bidis or dissolvable tobacco in the last 30 days for the years 2011–2015. The remaining rows give…

BREAKFAST AND TEST SCORES 1 of 4 What type of test should this researcher use? Conventional wisdom says that eating a healthy breakfast can improve your health and your weight, but can it also affect your test scores? In order to test this, a school program convinces a group of students to skip breakfast one morning before taking a Basic English test. Eighteen students received breakfast before taking the test, and twenty-one students did not eat breakfast and recorded their performance on the English test. What type of research test should this researcher use? Their results are as follows:

Do single-parent families tend to be more impoverished than families with two parents? In order to test if there is a relationship between family structure and family income level, family researcher studied a sample of 35 one-parent and 65 two-parent families in a particular city to determine whether their total family income fell below the poverty level. _________________________Family Structure____________________________ Total family Income               One Parent                  Two Parents                TOTAL Below poverty level                      24                                      20                        44     Not Below Poverty Level                                            11                                      45                         56 Total                                            35                                      65                        100 What are the independent and dependent variables.? What is the null hypothesis? What test should we use?…

A study in Sweden compared former elite soccer players with people of the same age who had played soccer but not at the elite level. Of the 500 former elite soccer players surveyed, 44 % had developed arthritis of the hip or knee by their mid-50s, compared with 42 % of the 500 recreational soccer players. Does it appear that elite soccer players are more likely to develop arthritis of the hip or knee than comparable recreational soccer players? Test at a = 0.10. Round your answers to three decimal places, and round any interim calculations to four decimal places. Fill in the hypotheses below where p₁ denotes the proportion of elite soccer players who develop arthritis of the hip or knee and på denotes the proportion of recreational soccer players who develop arthritis of the hip or knee. Ho: P₁ Ha: P₁ This test is right-tailed. P₂ ✓✓✓✓ P. What is the test statistic? Part 2 of 4

Do single-parent families tend to be more impoverished than families with two parents? In order to test if there is a relationship between family structure and family income level, family researcher studied a sample of 35 one-parent and 65 two-parent families in a particular city to determine whether their total family income fell below the poverty level. _________________________Family Structure____________________________ Total family Income               One Parent                  Two Parents                TOTAL Below poverty level                      24                                      20                        44     Not Below Poverty Level                                            11                                      45                         56 Total                                            35                                      65                        100 What are the independent and dependent variables.? What is the null hypothesis? What test should we use?…