Question

Question 2 A study was conducted to examine the effectiveness of a new nasal spray designed to reduce hay fever symptoms. The researchers involved with this study recruited 300 participants and divided them into either the treatment group (consisting of the new nasal spray) or the control group (consisting of a placebo spray). The table below summarises these results No change 81 61 59 Group Treatment Placebo a) Based on this scenario, state whether we should use relative risk (RR) or odds ratios (OR). Explain why you came to this conclusion. (2 marks) b) State the null and alternative hypotheses for this scenario. (2 marks) 12| Page c) Calculate the 95% C.l. for this scenario using the appropriate test. (4 marks)

Answer 1

$The given table is Smptoms sealuced Nochange placebo 5g tben S10pho㎎ educed | No dong el total 81 42 gerb up teamen placebo otal 5802 59 20 Explain a con carme to ths ooclusior Based is Sceaia Con Relahve 메SK \S often used cohen the stu on event occurring behoeen tuo g㈨ang Styc ve btpotheses$