Critical Value Calculator Confidence Level Sample Size. Select an alpha level. 196 for 95 Confidence Level p Worst Case Percent Default Value.
05 m Margin of Error or Confidence Interval. Were told that Elena wants to build a one-sample Z interval to estimate what proportion of computers produced at a factory have a certain defect she chooses a confidence level of 94 percent a random sample of 200 computers show that 12 computers have the defect what critical value Z star should Elena use to construct this confidence interval so before I even ask you to pause this video let me just give you a little reminder of what a critical value. So were going to go take that sample mean and were going to.
Were told that Elena wants to build a one-sample Z interval to estimate what proportion of computers produced at a factory have a certain defect she chooses a confidence level of 94 percent a random sample of 200 computers show that 12 computers have the defect what critical value Z star should Elena use to construct this confidence interval so before I even ask you to pause this video let me just give you a little reminder of what a critical value.
The area that is at z 1645 is your critical value for a confidence level of 90. 196 for 95 Confidence Level p Worst Case Percent Default Value. Here the sample size is n27 sample standard deviation is s68. 5 1 4.
