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Researchers wanted to determine whether the reaction time in seconds of males differed from that of females to a go/no go stimulus. The researchers randomly selected 20 females and 15 males to participate in the study. The go/no go stimulus required the student to respond to a particular stimulus and not respond to other stimuli.
(a) Is it reasonable to use Welch's t-test? Why?
Consider the following linear programming problem: A workshop of Peter's Potters makes vases and pitchers. Profit on a vase is $3.00; profit on a pitcher is $4.00. Each vase requires ½ hour of labor, each pitcher requires 1 hour of labor.
x is a normally distributed random variable with mean 10 and variance 24.find px gt 14.find p8 lt x lt 20.find the
What is the probability that a block now drawn at random from the second bag will be a maple?
What indicators would you use to determine that the organisation's culture is receptive to organization development?
How much should be budgeted for weekly repairs, cleaning and maintenance so that the probability that the budgeted amount will be exceeded in a given week.
Of the items produced daily by a factory, 40% come from line I and 60% from line II. Line I has a defect rate of 8%, whereas line II has a defect rate of 10%. If an item is chosen at random from the day's production, find the probability that it ..
Suppose an investor has the opportunity to buy the following contract, a stock call option, on March 1. The contract allows him to buy 100 shares of ABC stock.
an important factor in selling a residential property is the number of people who look through the home. a sample of 15
According to a recent poll, 53% of Americans would vote for an incumbent president. If a sample of 100 people results in 45% who would vote for the incumbent, test the claim that the percentage is 53%. Use a .10 significance level.
Why might driver be tempted not to use seat belt "just on this trip"?
Let X be a continuous random variable that has a normal distribution with the mean=48 and standard deviation=8.
Last week, Alicia went to her physician for a routine medical exam. This morning, her physician phoned to tell her that one of her tests came back positive.
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