Chapter 7: Class Worksheet Section Z.1: Estimating a Population Proportion Due: on TEST 3 day e size ni Name : Jenny Benjamin ate Z state one Fillin the blanks for the following definitions and solve the problems, Round your answer to 4 decimals amplee width 2. 1. A point estimate is a single value (or point) used to approximate a population parameter. Sample size.. The sample proportion is the best Point width = ZE 3. estimate We can use a sample proportion to construct a _Confidente intervals _ of the population proportion. population proportion, and we should know how to interpret such confidence intervals. to estimate the true value of a Problem #1: in a survey of 1024 adults, 287 said that their favorite sport to watch is football. Find the point estimate p for the population proportion of US adults who say their favorite sport to watch is football. 4. A _ Confidence value of a population parameter. Denoted by CI. love (or Interval estimate) is a range of values used to estimate the true 5. A confidence level denoted by CL is the probability (such as 0.95 or 95%) that the confidence interval actually does contain the population parameter. Most common choices are 90%, 95%, or 99%. (a = 0.10), (a = 0.05), (a = 0.01) Problem #2: From a Prince Market research poll in which 2518 respondents were asked if they acted to annoy a bad driver, 1083 said that they honked. Use a 90% confidence interval to answer the questions. a) Give the best point estimate of population proportion. ) Construct the confidence Interval. interval notation: inequality: StatCrunch Commands: stat Problem #4: Find the critical value Zo.04= Show your work: Sketch a normal graph, label the