help me tks

Ravi is a quality control expert at a factory that paints toys. The factory got a new order to paint toy dinosaurs in different colours. Out of them, 20% of the order was for indigo colour, so Ravi made a change in the painting process. After the change, he took a random sample of 385 toy dinosaurs and found 132 of them painted with indigo colour. 1. What is the sample proportion of toy dinosaurs painted with indigo colour? (2dp) 2. What is the estimated standard error of the sample proportion? (4dp) 3. What is the lower limit of the 95% Cl for p? (4dp) 4. What is the upper limit of the 95% Cl for p? (4dp) After changing the painting process, Ravi wanted to check whether 20% of toy dinosaurs were painted with indigo colour using a hypothesis test. 5. The null hypothesis is HO: p = ? (2dp) 6. What is the standard error of the sample proportion? (40 7. What is the absolute value of the test statistic (using a z-tes Reject the null hypothesis 8. What is the P-value associated with this test? (4dp) Don't reject the null hypothesis 9. Using a 5% significance level what would be your decision