Question

A travel agency offers customers a range of ways to make holiday bookings – in store, online and through their call centres. Revenues are generated through different commission rates on holidays paid by tour operators (the actual suppliers of the holiday products). The company prides itself on delivering customer satisfaction. Therefore, management is keen to research customer satisfaction levels across the different booking methods and by tour operators (some tour operators offer higher commission margins). To determine the level of customer satisfaction, the company’s management has decided to use a survey of all types of customers and have asked you to devise an appropriate sampling scheme.

1) Provide a practical marketing example of a 95% confidence interval for a proportion.

Answer 1

wats conduct survey have and through call The travel agency about customer satisfaction Since they instare, online Centre bookings, they should sampling samples from groups of online call probl customers. use estratified random This them to choose random store and centre 11) Now to practical example 95% give confidence interval lets assume that tore on ОЛА aurrage 69 Yo > of customers their travel agencies. Through the satisfied by survey found satisfied from out out that 71% of customers wou ees agency Nou Wout to check is the number 71% true. Le a is no all and really will formulate empothesis Null eppothesis: There difference in customer satisfaction of agencies agenny Polternate customer satisfaction of all agencies and agency number of people surveyed be 100 There difference rupothesis our the 1to 500

69%. Here (po) (P) Average of All agencies = Average of our agenry کلاه قم Po =P Po e Re Po & Pi that critical know Z valu at Now 95% confidence 1.96 C Found from z - table) Test Statistic Pi-Po Poll-Po) n 0.71-0.69 0.02 to J5oo 0.2139 To.69) (0.31) Soo 0-02 x 22.36 o.4472 0.2139 0.2139 > 1.96 . Tost statistic Z = .. will reject the hypothesis and that can our customer satisfaction say differus from average customer Satisfaction