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The distribution of Iowa Test vocabulary scores for seventh grade students in Gary, Indiana, is approximately Normal with mean ? = 6.84 and standard deviation ? = 1.55. The 68-95-99.7 Rule says the percent of scores between 5.29 and 8.39 is
A) 99.7%
B) 100%
C) 68%
D) 95%
suppose 3 of cotton fabric rolls and 3 of nylon rolls contain flaws. of the rolls used by a manufacturer 70 are cotton
What statistical procedure was used to analyze data in study B?
Bakery is a random variable X that has an exponential distribution with mean equal to 4 tons. The cost of the flour is proportional to Y=3X+1.
determine whether the following statement is true or false and explain briey if a simple random sample is taken from a
Wwhat are our h0 and ha ? (c) compute zobt.(d) with a= .05, what is zcrit? (E) do we have evidence of a relationship in the population? if so describe the relationship.
for the given pair of events classify the two events as independent or dependent. driving 30mph over the speed limit
Twenty defective products are found after a long working day. What is the probability that all the defective products can be reworked?
In a study, results were presented for a sample of 63 men who were asked to report their actual weight and their ideal weight. The mean difference between actual and ideal weight was 2.48 pounds
A number of minor automobile accidents occur at various high-risk intersections in Teton County despite traffic lights. The Traffic Department claims that a modification in the type of light will reduce these accidents.
you notice in your introductory psychology class that more women tend to sit up front and more men in the back. to
Type the above data into the SPSS Data Editor window, or save this file as an unformatted text file and write SPSS syntax to read it in.
a prospective cohort study is run to estimate the incidence of stroke in persons 55 years of age and older. all
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