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The mean number of shares traded on on the New York stock Exchange in June 2004 was 2.4 Billion per day. Assume that the distribution of shares traded is normal with µ = 2.4 (in billions) and σ = 0.6 (in billions). a. Find the probability that the number of shares traded on a randomly selected day falls below 0.6 billion.b. What percentage of days finds a volume of shares traded of more than 2.5 billion?c. What proportion of days finds the volume of shares traded between 1 billion and 2 billion?d. A slow day trading day has fewer shares traded than 99% of all other days. Find the number of shares traded that represents this amount?e. On one particular day, 3 billion shares were traded. Is this unusual? Explain answer.
The difference between a random variable and a probability distribution is: A. A random variable does not include the probability of an event. B. A random variable can only assume whole numbers
Now assume institutional cache is used. Hit rate for cache is 0.6. Determine the total average response time.
Assume a steady smoker spends on average $20 with a standard deviation of $5 per week on cigarettes. What is the probability that a sample of 100 steady smokers spend between $19.50 and $21?
A random sample of 70 printers discovered that a20 of them were being used in small businesses. Find the 99% limit for the population porportion of printers that are used in small businesses.
"Give an example of a statistic that you have heard quoted in the media that you do not believe is accurate either due to bias or other incorrect statistical methods. Describe the relevant population and the source (e.g. newspaper, TV, radio, inte..
Draw the suitable 2x2 table, compute and interpret suitable measure of association.
Suppose that an executive of a venture capital investment firm is trying to decide how to allocate his funds among three different projects, each of which requires a $100,000 investment.
Produced weigh between 100 grams up to the mean and 49.18% weigh from the mean up to 190 grams. Determine the mean and the standard deviation.
Faced with rising fax costs, a firm issued a guideline that transmissions of ten pages or more should be sent by two-day mail instead. Exceptions are allowed, but they want the average to be ten or below. Use Excel to find the right-tail p value
There is thought to be a relationship between a persons' educational attainment and the number of children he or she has. The hypothesis is that as one's educational level increases, he or she has fewer children.
What is the decision rule and What is your decision regarding H0 - The value of the test statistic is . (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
A bag of jelly belly candies contains the following colored jelly beans: red (10), blue (2), orange (5), brown (21), green (0), and yellow (18). Construct the probability distribution for x.
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