According to a marketing expert, 40% of Pastafarians prefer lasagna. If 9 out of 20 pastafarians choose lasagna over other pastas, what can be concluded about the expert's claim? Use a 0.05 level of significance. Attempt: H0: p=0.4 H1: p=/=0.4 Test statistic: Binominal variable X with p=0.4 and n=20. x=9, and np0 = 8 Correct answer: 0.4044.