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Exposure to medicine 'x' during pregnancy was investigated for 108 mothers of children with congenital defects and 108 mothers of normal controls. The researchers examined exposure to medicine 'x' during the first trimester. Eighteen mothers of the affected children were found to have been exposed, whereas only six of the controls were exposed.
1) What is the correct test statistic that you calculated with the test above?
A person spins the pointer and is awarded the amount indicated by the pointer. It costs $6 to play the game. Determine: The fair price to play the game
suppose that a basketball player can score on a particular shot with probality .3. use the central limit theorem to
The population standard deviation was 1.68 years. Using the 99% degree of confidence, what is the confidence interval for the population mean.
In checking the quality of the work, she notices that some slight blemishes occasionally are apparent. A sample of 20 pieces of work resulted in the following number of blemishes on each piece:
TIPL is a manufacturer in Ottawa, Ontario and specializes in sports memorabilia. Their specialty is to make 3-D images of past and present athletes used as promotional giveaways. TIPL started as a 2-perspon company owned and operated by Anthony an..
How long on average did a voter have to wait in line precinct at A in 2004 before entering in a booth to cast her/his vote?
They would like the margin of error of the 95% confidence interval for the proportion to be 0.05 or less. Use the guessed value p = 0.25 to find the required sample size.
multiple choice questions based on multiple regression.1. a regression model between sales y in 1000 unit price x1 in
1. Who was the author of the famous storybook 'Alice's Adventures in Wonderland'? 2. How many lines does a sonnet have? 3. Who wrote 'Where ignorance is bliss, it is folly to be wise'?
A sample size of 900 is not large enough to conclude that the sampling distribution of p is a normal distribution, when the estimate of the population proportion is 0.995 and the standard deviation of all possible sample proportions increases as th..
Digital camcorder repair service has set the goal not to exceed average of 5 working days from time unit is brought in to time repairs are completed. Compute the t-value.
The manufacturer of a coffee dispensing machine claims the ounces per cup is normally distributed with population mean equal to 8 ounces and standard deviation equal to 0.9 ounces. If 50 cups of coffee were measured, what is the possibility that- ..
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