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The random variable x is known to be uniformly distributed between 70 and 90. The probability of x having a value between 80 to 95 is:
a) 0.75
b) 0.5
c) 0.05
d) 1
If a complete failure occurs, calculate the probability that the fault occurred in:
Test whether the mean weight is greater than 16 ounces with P-value approach.
What is the probability that a visually impaired student gets less than 6.9 hours of sleep?
Let 3 trails (they may not be independent), each of which is either success or not. Let X denotes number of successes. Assume E[X] = 1.8. Determine the largest possible value of P(X=3)?
According to a hospital administrator, historical records over the past 10 years have shown that 20 percent of major surgery patients are dissatisfied with after-surgery care in the hospital. A scientific poll based on 400 hospital patients has ju..
A researcher selects a random example of college students and measures number of hours they spend watching television per week and their grade point average.
The booster club has gotten several businesses and car dealers to donate gasoline and cars for the college students to use to make a maximum of 575 personal contacts daily during the fund-raising drive. The college student will donate a total of 2..
Find out the probability that: (a) The amount requested is between $65,000 or more?
The accompanying two histograms represent the distribution of acceptance rates (percent accepted) among 25 business schools in 1995. The histograms use different class intervals, but are based on the same data. In each class interval, the left endpoi..
A researcher uses hypothesis test to estimate H0 µ= 80. Which combination of factors is most probable to result in rejecting null hypothesis?
Would Kruskal-Wallis be the suitable statistical procedure to test this Research Question (RQ)? Describe your answer. When would you use Chi-Square test rather than One-Way Anova?
At significance levels of .05 and .01 test H 0 : the factors A and B are independent.
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