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The given data show the age distribution of top 14 doctors in emergency faculty of local hospital.
Age Frequency
35-39 240-44 245-49 150-54 355-59 460-64 2
Using the computational formula, calculate the Standard Deviation of doctors' ages
Do the data indicate that the sleeping pill is effective at a 1% level of significance?
What is the probability of obtaining 4 ones in a row when rolling a fair, six-sided die? Interpret this probability.
If the mean number of serious accidents per year in a large factory (where the number of employees remains constant) is five, find the probability that in the current year there will be:
Events A and B are mutually exclusive events defined on common sample space. If P (A) 0.5 and P (A or B) = 0.70, determine P (B).
200 people were surveyed and asked to rate mayor Michael Bloombergs effectiveness towards education. The rate scale is 1 (lowest) to 10 (highest). Mayor Bloomberg's average rating was 7.50, with a standard deviation of 2
College students are a major target for advertisements for credit cards. At a university, 65% of students surveyed said they had opened a new credit card account within the past year.
Survey on What do you think is the biggest problem facing education today. One problem with exit polls may be that the wrong "key precincts" were chosen.
Determine the expected number of Republicans who will win office in the coming election? Illustrate the standard deviation of r?
Evaluate your histograms for any outliers in your data. Based on your evaluation of outliers, you may trim no more than 1% of the data contained in the data set. This must be done symmetrically (i.e., trimming no more than 0.5% off the top and 0.5..
Analysis of variance- One way classification - Are there differences among these 3 drugs with respect to how long they are retained in the body?
Let p represent the proportion of registered voters in the state that would vote for the Republican candidate. The standard error for the proportion of those who phoned in who answered "yes" is
A cereal manufacturer seeks to test their newest product against competitor's. A group of 100 children was asked to measure each brand, and then to express a preference.
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