For each of the following scenarios, complete a thorough and complete test of significance. Be sure your write-ups include all of the following steps: 1. Define the parameter(s) of interest. 2. State in symbols and in words your null and alternative hypotheses. 3. Draw and label an appropriate diagram of the sampling distribution. 4. Check the technical conditions for this problem. Is your sampling distrubution valid? (For the sake of review, complete the problems regardless of whether or not the conditions hold!) 5. Determine the p-value for this application. 6. Explain what the p-value tells you about your sample result. Be sure to interpret this number as a probability. 7. State the results of your test keeping your comments within the context of the application. (This usually requires several sentences). 8. Have the calculator construct a confidence interval that backs up the result of your significance test. Show that the results of the significance test and the confidence interval are consistent with one another. Scenario A In 1994, an attempt was made to reestablish a healthy population of timber wolves on a large wildlife preserve in Alaska. Such attempts are considered to be successful if more than sixty percent of the animals introduced to the environment survive their first three-year period. Before releasing the animals, biologists tagged with radio transmitters a random sample of 40 wolves.

a) Work this problem manually (by hand) using the procedures and formulas for ANOVA to check if the Population Means for flying time before major maintenance is required are the same for the three types of aircraft.   To help you, Sample Means and Sample Variances have been calculated below for you:                      Airbus                Boeing737            Boeing 787                        6.4                           8.7                          9.9                        7.8                           7.4                          12.8                        5.3                            9.4                         12.1                       7.4                            10.1                        10.8                       8.4                            9.2                          11.3                       7.3                            9.8                          11.5 __________________________________________________________________ Sample Mean         7.1…

Samuel F.B. Morse (1791-1872), the creator of the Morse Code, claimed that 12 % of all letters used in English language were "e"s. Suppose random samples of 196 letters are selected from a book. Use this information to answer question below.

A. What is the sample variance?B. What is the mode and kurtosis of the data C. In a box-and-whisker plot, what is the IQR?