This question require R studio, you need to download the excel file to work on the question:

https://drive.google.com/file/d/1xu0b-EhVfuPmF9oE2i0YMgHye_ElcPOr/view?usp=sharing

Vaccination Pain Health officials are investigating the duration of pain at the injection site after the first jab of a new Covid-19 vaccine. They are also investigating whether the subjects contracted Covid-19 after the first jab. A random sample of men and women aged 20-60 years was selected from a list of vaccinated individuals. A telephone survey was used collect data for the variables listed below. Download the CSV data using the link below and read it into RStudio: 9 Jab.csv The data contains the following variables: Age Age of the person (years) Sex Sex of the person (Male/Female) Duration Time that pain lasted at the injection site after the first jab (hours) Covid Did person contract Covid-19 after the first jab (Yes/No) Question 1 The number of categorical variables in the data is Question 2 The interquartile range of the pain duration time is O 1.0 hours 0 2.5 hours 0 3.0 hours 0 4.0 hours Question 3 The mean pain duration of women in the survey is O 12.55 hours 0 21.26 hours 0 27.14 hours 0 31.76 hours Question 4 The researchers are interested to know whether the mean pain duration is different for males and females. Based on the results of a Welch ttest, there is 0 moderate evidence to suggest that mean pain durations for men and women are different (p = 0.039) 0 weak evidence to suggest that mean pain durations for men and women are different (p = 0.077) 0 no evidence to suggest that mean pain durations for men and women are different (p = 0.626) 0 no evidence to suggest that mean pain durations for men and women are different (p = 0.961) Question 5 Which of the following is an assumption of the analysis in Question 4'? O The standard deviations of the pain duration times should be equal for men and women The pain durations follow normal distributions in male and female populations The survey should be conducted at night 000 The male and female samples should be related Question 6 The probability of a randomly selected man having contracted Covid-19 after the first jab is o 0.107 0 0.240 O 0.462 O 0.760 Question 7 The appropriate statistical test to test whether sex and Covid-19 infection after the first jab are related is a O Chi-square test 0 Sign test 0 Two sample t-test O Two-way ANOVA F-test Question 8 Based on the test in Question 7, there is 0 strong evidence to suggest that the sex of a person and Covid-19 infection after the first jab are related (p = 0.000) moderate evidence to suggest that the sex of a person and Covid-19 infection after the firstjab are related (p = 0.014) weak evidence to suggest that the sex of a person and Covid-19 infection after the first jab are related (p = 0.059) 000 no evidence to suggest that the sex of a person and Covid-'19 infection after the first jab are related (p = 1.000) Question 9 If there is no association between the sex of a person and Covid-19 infection after the first jab, the expected number of women who will have contracted Covid-19 is O 7.20 O 9.33 0 12.65 0 30.15