computing the test statistic and p-value in minitab express

Using Minitab Express, construct a normal distribution with a mean of 0.492 and standard deviation of 0.023. Use the general form of a confidence interval: (12 points Sample statistic + z* (standard error) D. Using the original sample proportion, z* multiplier that you found in part B, and bootstrap standard error from the StatKey output, construct a 90% confidence interval to estimate the population proportion. Use Minitab Express to construct a standard normal distribution to identify the z* multiplier for a 90% confidence interval. Given the StatKey output above, what was the 90% bootstrap confidence interval for the population proportion? 5 points B. Note that the middle proportion was changed to 0.90.

StatKey was used to obtain the following bootstrap distribution. In a sample of 500 commuters, 246 identified as women. Researchers want to estimate the proportion of all Atlanta commuters who identify as women. Explain why your answers to parts A and C were very similar. [12 points (Hint: This should be similar to your answer in part A) D. Use Minitab Express to construct a standard normal distribution and find the proportion that is more extreme (i.e., two-tailed probability) than the z test statistic you computed in part B. Use the standard error found on the given randomization distribution. Compute the standardized test statistic using the formula below. What was the p value for the randomization test shown above? Write your final answer to four decimal places. The randomization distribution, with the cut-off set to the observed sample mean, is shown below. StatKey was used to conduct a randomization test. The observed sample mean was 88.83 points. error = 0.477ĭata were collected from a sample of 100 exams.

16 points Question Set 2: Hypothesis Testing Research question: Is the average exam score different from 90 points? Data were collected from a sample of 100 exams. Explain why your answers to A and B are the same. Copy+paste your distribution here and clearly identify your final answer. Use Minitab Express to construct a normal distribution with a mean of 50 and standard deviation of 10 and find the area above x= 60. Use Minitab Express to construct a standard normal distribution to find the proportion of the curve above z= 1. Transcribed image text: Question Set 1: Finding Probabilities on a Normal Distribution A.

Computing the test statistic and p-value in minitab express