One company builds many homes in Ottawa every year. In planning for each job, the manager of the company needs some idea about the direct labor hours required to build a home. To do this, the manager has collected sample information on the labor hours for 10 jobs during the past years: 645, 802, 791, 651, 653, 542, 418, 695, 552, 575 The manager wishes to be able to finish at least 75% of the houses he contracts to build within two weeks. Each of his workers works 40 hours a week. If the manager asks you to determine the number of workers, how many workers should he hire? (Hint: The data are not assumed to be bell-shaped).

At an assembly plant, workers assemble parts for a piece of farm equipment. The supervisor conducted an experiment to compare the effectiveness of three assembly methods, A, B, and C. Eighteen employees were randomly assigned, six employees each, to one of the three methods. After completing their training, each person was asked to assemble five pieces of equipment using his or her training method. The average time to complete the assembly of all five pieces of equipment was recorded. (a) What type of study design is used? O independent groups design O repeated measures design O matched pairs design O randomized block design What are the experimental units in this study? O the 18 employees O the five pieces of equipment to be assembled O the three assembly methods O the average time to assemble five pieces of equipment (b) What are the treatments? O the 18 employees O the five pieces of equipment to be assembled O the three assembly methods the average time to assemble five pieces of…

The 2017 Chapman University Survey of American Fears asked a random sample of 1207 American adults if they believed that aliens had come to Earth in modern times, and 26% responded yes. Complete parts (a) through (d) below.

freshmen business students at a local university produced the results listed below. How many students took history and science, but not music? 2525 took history;2222 took science;2323 took music;1919 took history but not science;1010 took science and music;1212 took history and music;44 took all three

Answer.

The FBI wants to determine the effectiveness of their 1010 Most Wanted list. To do so, they need to find out the fraction of people who appear on the list that are actually caught. Step 1 of 2 :   Suppose a sample of 283283 suspected criminals is drawn. Of these people, 9393 were captured. Using the data, estimate the proportion of people who were caught after being on the 1010 Most Wanted list. Enter your answer as a fraction or a decimal number rounded to three decimal places.