need help except question 8 and 9

A researcher is concerned about Australians' physical activity during the lockdown. S/he wants to understand whether change in amount of physical activity during the COVID-19 lockdown depends on people's age. The following table shows a random sample of Australians in different age groups and their change in amount of physical activity (n= 177). Use the table to answer the questions which follow. Change in amount of physical activity during the COVID-19 lockdown by age group Age group More than before No change Less than before 40-49 13 24 50 60+ 29 30 31 For each question, either choose the most correct option, or type in the answer to the number of decimal places specified. 1. (1 mark) What proportion of the participants in the study did not change their level of physical activity ? (3dp) 2. (1 mark) What proportion of the 60+ participants did more physical activity than before? (3dp) 3. (1 mark) What proportion of the participants did less physical activity were 40-49 participants? (3dp) The researcher would like to answer the following research question: "Do Australians in different age groups change differently in their physical activity during the COVID-19 lockdown?" S/he sets up the following null and alternative hypotheses to answer the research question. Ho : There is no association between age groups and change in physical activity. H1 : There is an association between age groups and change in physical activity. 4. (1 mark) What is the expected value for 40-49 participants who did more physical activity than before? (3dp) 5. (4 marks) The absolute value of the test statistic is equal to (type your answer with 3 dp) 6. (1 mark) The degrees of freedom is equal to (type your answer as an integer) 7. (1 mark) The p-value is smaller than 0.05 8. (1 mark) We decide that 9. (2 mark) Our conclusion is that 10. (4 marks) We are 95% confident that among the participants who come from 60+ age group, the proportion who had no change in their physical activity is between (lower limit) and (upper limit). Type your answers with 3dp