Solve thes problem Speech or Presentation Example | Topics and Well Written Essays - 2500 words

Solve thes problem - Speech or Presentation Example From a table, the probability of a value being to the left or equal to this z-score is .8962; so the probability to be to the right of z = 1.2649 (or to the left of z = -1.2649) is: For 99% confidence intervals, 99% of the area under the curve will be shaded when the endpoints are 2.5758 standard deviations away from the mean. The endpoints for this confidence interval are found by: Adding a sample size m = 75, find the sample mean (m2) of the added sample that would lead to a p-value > 0.05 for the combined sample. Find the probability of obtaining a sample mean from the added sample within the needed range. To calculate the probability that Type 1 error occurs, we want to calculate what is the probability that the null hypothesis is correct ( the p-value is greater than .05 significance level) and the mean of the sample is in one of the tail ends 12. This would result in an interval (6.9 to 13.1). The probability that there is a Type 1 error when the original rejection criteria is used: mean 12, is the probability that the mean falls within the intervals 6.9 to 8 and 12 to