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1. How many of the 800 students would be expected to have scores between 20 and 30?
2. What two IQ scores separate the extreme 1 percent of the population from the middle 99 percent? Set this problem up using the "extreme 5 percent" example as a model.
1. a study of commuting times reports the travel times to work of a random sample of 17 employed adults in new york
Scrap rates per thousand (parts whose defects cannot be reworked) are compared for 5 randomly selected days at three plants. Does the data prove a significant difference in mean scrap rates?
Choose one historical event and discuss the effect that it has has on you. Provide a rationale for your response.
Calculate the range and the standard deviation. Add 2 points to each score and compute the range and the standard deviation again. Describe how adding a constant to each score influences measures of variability.
The following lab is to give you a chance to generate your own graphs and statistics using software.
a fourth grade student has a list of 8 books for her subjects. due to rising costs the student cannot afford to buy all
Only 4% of people have Type AB blood. A bloodmobile has 12 vials of blood on a rack. If the distribution of blood types at this location is consistent with the general population, what's the probability they find AB blood in:
Compute the value of the discriminant and give the number of real solutions to the quadratic equation
Suppose the following statistics were calculated from data gathered from a randomized block experiment with k = 4 and b = 10:
A sample of the personal files of eight male employees revealed that during a six month period they lost the following number of days due to illness 2, 0, 6, 3, 10, 4, 1, 2. Calculate the standard deviation. show your work.
Identify the letter of the choice that best completes the statement or answers the question.
greg stock is attempting to monitor a filling process that has an overall average of 705 cc. the averange range is 6
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