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Over the past few years, banks have strongly promoted online banking and the paying of bills online. In 2003, about 50% of internet users paid bills online.
A survey taken showed that among 785 randomly selected subjects who completed 4 years of college, 144 smoke and 641 do not smoke
The length of time it takes to find a parking spot, during the summer terms on a campus, follows a normal distribution with a mean of 3.5
A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2.
Assume there are 20 homes in the Quail Creek area and 10 of them have a security system. Four homes are selected at random:
In a certain city, the daily consumption of water (in millions of liters) follows approximately a gamma distribution with a = 2 and ß = 3.
A simple random sample of five months of sales data provided the following information
In a specific company, there are three levels of workers: skilled, unskilled, and manager. The owner of this company wants to know if the level of job
A researcher collected data from 28 individuals. Seven independent variables were used to predict a dependent variable
You randomly select a card from the deck and find that you have drawn a face card. If you don't replace the card.
Suppose that the medical staff indicates that the results of a given laboratory procedure must be available 30 minutes after the physician submits a request
There are two more assignments in a class before its end, and if you get an A on at least one of them, you will get an A for the semester.
A computerized tutorial center at a local college wants to compare two different statistical software programs.
Customers at a popular restaurant that refuses reservations arrive according to the Poisson distribution at a rate of 4 parties every 5 minutes.
Choose three peer C-reviewed research articles and write a short review of each of them that includes the following:
Find the probability that a random sample of size 54, selected with replacement, will yield a sample mean greater than 4.1 but less than 4.4.
In your environment (business or personal), please describe a hypothesis test related to a decision. What would be your data? What would be your null hypothesis
A sample of 500 shoppers were selected in a large metropolitan to determine various information concerning consumer behavior
How many different four-digit numbers can be formed from the digits 0 through 9 if the first digit must be even and cannot be zero?
Rachel's doctor suspects she is suffering from hypoglycaemia. The amount of glucose in the bloodstream varies and a person with hypoglycaemia
A fish wholesaler has a catch of several thousand lobsters. A prospective buyer selected 40 at random and obtained the following weights in ounces:
Determine the EST,EFT,LST,LFT, and slack for each activity. Also determine the critical path and project completion time.
Which is the dependent variable in the table? Which is the independent Variable?
The Golding Discount Department Store has approximately 300 customers shopping in its store between 9am and 5pm on Saturdays.
Choose a research article from your field. Write the five hypotheses that this study is testing. Write both the null and alternative hypotheses for each one.