Question: Return to the confidence interval you constructed for Develop Your
Return to the confidence interval you constructed for Develop Your Skills 8.2, Exercise 9.You believe that the average mark on the statistics test was 50%. Does the sample evidence support your belief? What level of significance applies to your conclusion?
Answer to relevant QuestionsA company wants to design a daycare program for its staff. A random sample of 200 employees reveals that 142 have children of daycare age. Construct a 95% confidence interval for the proportion of all employees who have ...You want to know the average grade on a statistics test, but the teacher will not provide the information. You take a random sample of the marks of 20 students who wrote the test. The results are available in MyStatLab. ...An ice cream store wants to expand its range of flavours, and has decided to do some research to select which flavours to add. Customers were presented with a range of new flavours, and asked which one they would like to ...A college surveys incoming students every year. An excerpt of one such survey, for business students only, is available in MyStatLab (you may have looked at this data set for the Test Your Knowledge exercise at the end of ...An automobile association wants to demonstrate that maintaining tire pressure results in better fuel economy. The association selected a random sample of its members, and asked them to record their fuel consumption in litres ...
Post your question