A drug manufacturer claims that fewer than 10% of patients who take its new drug for treating Alzheimer's disease will experience nausea. To test this claim, a significance test is carried out of

H0 :p = 0.10

Ha :p < 0.10

You learn that the power of this test at the 5% significance level against the alternative p = 0.08 is 0.29.

(a) Explain in simple language what "power = 0.29" means in this setting.