statistics problem 2

(b) An industry trade publication claims that the population average size of a television sold in the US is 45 inches. The owner of an appliance stores believes the actual population mean size is larger than this. The store owner randomly selected 30 recent television purchasea and found that the sample average size was 48.7 inches. OA. Ho : M = 45, HA : M > 45 OB. Ho : x = 45, HA : x 45, HA : M = 45 OE. Ho : x = 48.7, HA : x > 48.7 OF. Ho : M = 48.7, HA : M # 48.7