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If 37% of high school students said they exercise regularly, find the probability that 5 randomly selected high school students will say that they exercise regularly. Express your answer for this item in percent.
A digital camcorder repair service has set a goal not to exceed an average of 5 working days from the time the unit is brought in to the time repairs are completed. A random sample of 12 repair records showed the following repair (in days)
Suppose that 15% of all adults jog. An opinion poll asks a simple random sample of 500 adults if they jog. What is the sampling proportion in the sample who jog?
he life expectancy of a brand of hair dryer is normally distributed wiht a mean of four years and a standard deviation of 8 months.
Suppose an engineer proposes a new model that will weigh 3100 pounds. What could we expect the miles per gallon in the city performance would be?
Pedestrian Walk Buttons New York City has 750 pedestrian walk buttons that work, and another 2500 that do not work (based on data from "For Exercise in New York Futility, Push Button
In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research question: Are the ..
One particular morning, the length of time spent in the examination room is recorded for each patient seen by each physician at an orthopedic clinic. Does the data prove a significant diference in mean times, using a=.05 Minutes in Examination roo..
Your specific assignment for this week is to choose a type of quantitative data to gather from your own life. How many minutes does it take yo to get to work everyday.
Aggregate the opinions of the experts by computing the minimum, maximum, 25 th percentile, 50 th percentile, and 75 th percentile values.
The weights of adult male beagles are normally distributed with a mean of 25 pounds and a standard deviation of 3 pounds. A beagle is randomly selected. Find the probability that the beagle's weight is less than 23 pounds.
The population mean of a company's racing bicycles is 9.07 kg (20.0 lb) with a population standard deviation of 0.40 kg. If the distribution is approximately normal
Determine how self confident a person may be. Analysis and Justification. Prepare an analysis of how you developed your instrument.
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