Pejabat bank akan memperkirakan berapa persen para nasabah yang tidak puas dengan pelayanan yang diberikan oleh pegawainya. Untuk maksud tersebut, kemudian dilakukan penelitian terhadap 500 orang nasabah yang dipilih secara acak. Ternyata ada 60 otang yang tidak puas. Dengan tingkat keyakinan sebesar 99%, buatlah pendugaan interval para nasabah yang tidak puas denga pelayanan bank tersebut

Amanufacturing firm has been averaging 16.8 orders per week for several years. however, during a recession, orders appeared to slow. suppose the firm’s production manager randomly samples 31 weeks and finds an average of 15.6 orders with a standard deviation of 2.3 orders. using a 0.025 significance level, test whether the mean number of orders has decreased. type the full 5 step procedure into the answer box, then for multiple choice practice, answer the following: 1. what is the name and symbol of the parameter that you are testing? 2. what is the symbol and value of the point estimate of that parameter? 3. what distribution are you using to test this parameter? 4. what is the critical value? 5. what is the test statistic value? 6. what is the p-value?