Explain the difference between confidence and probability. In Exercises 4 and 5, express the following survey results in terms of confidence intervals for p:
Answer to relevant QuestionsWhen constructing a confidence interval for. , how do you decide whether to use the t distribution or the normal distribution? Are there any circumstances when it is acceptable to use either distribution? Interpret computer output: The following output from MINITAB presents the results of a hypothesis test. a. What are the null and alternate hypotheses? b. What is the value of the test statistic? c. What is the P-value? d. ...Facebook: A popular blog reports that 60% of college students log in to Facebook on a daily basis. The Dean of Students at a certain university thinks that the proportion may be different at her university. She polls a ...Why don't we need to know the population standard deviation when performing a test about a population proportion? The following TI-84 Plus calculator display presents a 95% confidence interval for the difference between two proportions. a. Find the point estimate of pt —p2. b. Fill in the blanks: We are 95% confident that the ...
Post your question