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Two hundred randomly selected individuals were surveyed about their environmental awareness. Once the points were tallied, individuals were broken up into categories of environmental awareness. Those with scores of 8 to 10 were considered to be very environmentally aware, scores of 4 to 6 moderately aware, and 3 or less not aware. The results are shown in the following table:
Very environmentally aware Moderately environmentally aware Not environmentally aware
Male 30 21 45
Female 42 34 28
Run an appropriate test of significance at α = 0.05 to see if the data provide evidence that gender is associated with one's environmental awareness.
according to the mampm company each package of plain mampms should contain 24 blue 14 brown 16 green 20 orange 13 red
At the 0.05 level of significance, can we conclude Middletown students remained in their districts less time than Brockton students? Make use of 5-step hypothesis testing procedure.
Shirley runs a real estate company. She counts the total number of flats that she sells everyday. Let X_t be the total number of flats she sells on day t (t=1,2,...,7), and let X be the total number of flats she sells for the week.
the answer should be 4e-6the current test for the h7n9 avian flu is a blood test. it requires withdrawing blood from
A random sample of 15 college graduates revealed that they worked an average of 5.3 years on the job before being promoted. The sample standard deviation was 1.2 years. Using the 0.95 degree of confidence, what is the confidence interval for the p..
Give a practical interpretation of the value r = .68.- Is the estimated slope of the line, part a, positive or negative? Explain.
Identify the steps of the risk management process. Discuss each in detail.
To help finance of the venture, Bialystock and Bloom sell 1% of the future gross revenue stream to an outside investor for $120,000.
One of the hikers is a possible outlier. Identify the body weight and backpack weight for this hiker. How does this hiker affect the form of the association?
However, if they lose the first contract, the president thinks that the probability of winning the second contract decreases to 48%. What is the probability that they win both contracts?
Let x be the number of days per year that the level of air pollution exceeds the standard in a certain city. The probability distribution of x is given by:
A grocery supplier believes that in a dozen eggs, the mean number of broken ones is 0.6 with a standard deviation of 0.5 eggs. You buy 3 dozen eggs without
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