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Assume data has a normal distrubution and number of observations is greater than fifty. Find the critical z score used to test null hypothesis. alpha =0.01 and two-tailed.
Statistics and Probability, Statistics
Imagine you are the Chief adviser to the Australian Prime Minister. 1) Clearly explain to him the meaning of 'subprime debt'? What are the risks and advantages of such financial instruments? a) What is a CDO? b) What is ...
Would you actually build a contingency chart for this question or is this just probability basics? Bob sets two battery powered alarm clocks to make sure he wakes up in time for his 8 AM accounting test. Each alarm clock ...
The usable lifetime of a particular electronic component is known to follow an exponential distribution with a mean of 6.2 years. Let X = the usable lifetime of a randomly selected component. (a) The proportion of these ...
What is the sample size for studies with MOE of +/-3.5% and +/-2.8%, with a confidence level of 95%, sample statistics of 50. Suppose the category population was 7500 (less than 10,000)? Remember the FPC. What would be t ...
Suppose that a company's equity is currently selling for $26.00 per share and that there are 5.60 million shares outstanding. If the firm also has 46 thousand bonds outstanding, which are selling at 109.00 percent of par ...
If the data are pooled, the 48 "before" scores had an average of 7.48 and a standard deviation of 0.652. Assume that the "before" scores of people who have not seen any pictures has an average of 7.48 and a standard devi ...
A puck company wants to sponsor the players with the 20% quickest goals in hockey games. The times of first goals are normally distributed with a mean of 8.54 minutes and a standard deviation of 4.91 minutes. How fast wo ...
Can someone explain this to me? Or draw it out so that I can understand. You may see a problem like the following: a mean score of 20 and SD of 3, and asked what percentage of cases will be between 17 and 23, you would r ...
How do you calculate conditional probability for behaviors in applied behavior analysis?
A college offers 2 introductory courses in history, 3 in science, 4 in philosophy, 4 in mathematics, and 5 in English. If a freshman takes one course in each area during her first semester, how many course selections are ...
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