?(a) Write the claim mathematically and identify Upper H0 and Upper H Subscript a Ha. ?(b) Find the critical? value(s) and identify the rejection? region(s). (c) Find the standardized test statistic.? (d) Decide whether to reject or fail to reject the null hypothesis.
In a sample of 1000 home? buyers, you find that 423 home buyers found their real estate agent through a friend. At alpha α equals =0.02?, can you reject the claim that 45?% of home buyers find their real estate agent through a?friend?