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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 mean is 15.8 tons. the sample standard deviation is 5.0 tons. what is the 95 percent interval for the population mean?
As a sample size approaches infinity, how does the student's t distribution compare to the normal z distribution? When a researcher draws a sample from a normal distribution, what can one conclude about the sample distribution? Explain.
The study found that men who had participated in some vigorous activity at least twice a week in high school, college, and up to age 40 had a 60% reduced risk of Parkinson's disease developing. The study found no such reduction for women. What typ..
Three scholarships are available for students. Their values are: $2,000, $2,400, $3,000. Twelve students have applied and no student may receive more than one scholarship. Assume all twelve students are in needs of the funds, how many different..
Use formula z=(mean of values in sample - mu subscript mean of values in sample) divided by (lower case sigma divided by sqrt number of values in sample)
Find the standardized test statistic to test the claim that mean1 = mean 2. Two samples are randomlu selected from each population. The sample statistics are given below.
What is the expected number of Republicans who will win office in the coming election?
In the 2000 football season, 247 plays were reviewed by officials using instant video replays, and 83 of them resulted in reversal of the original call.
Assume that the distribution of heights of adults American normally distributed, with mean 69 inches and standard deviation 2.8 inches.
Estimate the percent that did not have any dental expense. What was the cost for the 10 percent of employees who incurred the highest dental expense?
Estimate the true weight with an error of 0.03 grams with 99 percent confidence? How to construct a 95 percent confidence interval for the population proportion of positive drug tests. How to tell if the normality distribution?
Solve the equations using linear algebra
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