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Weekly demand for a certain brand of toothpaste in a local retail store has a Poisson distribution with expected value 5. The store replenishes the stock weekly so that the starting inventory on the shelf at the beginning of each week is 8. What is the expected shortfall at the end of the week? That is, what is the expected number of demands in excess of the initial stock?
Assume the FDA has established 200 grams of fruits and vegetables as minimum daily intake. Determine the probability woman selected will meet this minimum intake?
A consumer group is testing the gas mileage of three different models of cars. Several cars of each model were driven 500 miles and the mileage was recorded as follows.
Findout the 98% confidence interval for true mean. Findout a 98% confidence interval for the cigarette tax in all 50 states.
The owner was interested in the mean time required to service this model, and decided not to carry the model if the mean repair time appeared to be more than 40 minutes.
A random sample of 10 miniature Tootsie Rolls were taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were as follows:
Assume grades in a course follow a normal distribution. The average grade in a class is 75, and the standard deviation is 5 points. A professor takes a sample of 10 people in the class and calculates the average for that class is also 75. IN other..
consider the normal distribution of iqs with mean of 100 and a standard deviation of 16. what percentage of iqs are
What is the probability 0.10 called? 100 words
By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.22 seconds.
First, describe in your own words (no direct quotes, please) what a dummy variable is and its purpose in regression analysis. Secondly, provide an example of where you might use a dummy variable from your own professional experience.
a survey of adults ages 18-29 found that 82 use the internet.you randomly select 196 adults ages 18-29 and ask them if
A membership drive in a metropolitan area resulted in 500 new members. What is the probability that 175 or more of the new members are significantly overweight?
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