Studies have found that 42% of the global population are regular ear pickers.Because of Toronto's dry climate, Laura suspects that the proportion of regular ear pickers in Toronto is actually a bit higher than for the global population. A random sample of 150 citizens of Toronto was observed for a week using surveillance drones and 72 of them were found to be regular ear pickers (Use a 10% significance level to determine if the proportion of citizens of Toronto who are regular ear pickers is higher than for the global population.

a)What are the null and alternate hypotheses for this situation?

b) What is the test statistic for this problem (please show work and formulas for how you get this value, round to 3 decimal places?

c) What is the critical value for this problem (explain how you got it, including any EXCEL formulas you may have used, round to 3 decimal places)?

d) What would you conclude for this problem (be specific to the problem)?