You have been assigned to determine whether more people prefer Coke or Pepsi. Assume that roughly half the population prefers Coke and half prefers Pepsi. How large a sample do you need to take to ensure that you can estimate, with 95% confidence, the proportion of people preferring Coke within 2% of the actual value? MUST SHOW WORK.
Identifies the Sample Size
Total: 6.00
Distinguished – Clearly and accurately identifies the sample size.
Proficient – Identifies the sample size. Minor details are missing or unclear.
Basic – Vaguely identifies the sample size. Relevant details are missing and/or unclear.
Below Expectations – Attempts to identify the sample size; however, significant details are missing and unclear.
Non-Performance – The identification of is either nonexistent or lacks the components described in the assignment instructions.
Utilizes the Support Tool of Excel
Total: 2.00
Distinguished – Accurately utilizes the support tool in Excel. All of the utilizations are accurate.
Proficient – Utilizes the support tool in Excel. There are some minor inaccuracies in the utilization.
Basic – Utilizes the support tool in Excel. There are many inaccuracies in the utilization.
Below Expectations – Utilizes the support tool in Excel. There are several significant inaccuracies in the utilization.
Non-Performance – The utilization of the support tool in Excel is either nonexistent or lacks the components described in the assignment instructions.
Utilizes the Equations
Total: 4.00
Distinguished – Accurately utilizes the equations. All of the utilizations are accurate.
Proficient – Utilizes the equations. There are some minor inaccuracies in the utilization.
Basic – Utilizes the equations. There are many inaccuracies in the utilization.
Below Expectations – Utilizes the equations. There are several significant inaccuracies in the utilization.
Non-Performance – The utilization of the equations is either nonexistent or lacks the components described in the assignment