The performance of a computer is observed over a period of 2 years (52 weeks/year) to check the claim that the probability is 0.20 that its downtime will exceed 5 hours in any given week. Testing the...

The performance of a computer is observed over a period of 2 years
(52 weeks/year) to check the claim that the probability is 0.20 that its downtime will exceed
5 hours in any given week. Testing the null hypothesis p = 0.20 against the alternative
hypothesis p 6= 0.20, what can we conclude at the level of significance α = 0.05, if there were
only 11 weeks in which the downtime of the computer exceeded 5 hours?