A random sample of Is monthly rents for two - bedroom apartments was selected from a certain city . The mean of this sample is $636 . Assume the population standard deviation is $121 . A group of students think the mean rent for two-bedroom apartments is less than $650 . Test their claim with a significance level of a = 0.05 . Use this scenario to answer questions 1 - 5 1 ) State the alternative and null hypothesis 2 ) Calculate the test statistic 3 ) Identify the p- value . 4 ) Make your decision . 5 ) Interpret the results