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Question: The following histograms represent the probability distributions of the random variables X and Y. Determine by inspection which probability distribution has the larger variance.
Solve different inventory control problems using an appropriate OR method.
Twenty-five owners responded, and the sample mean water use per day was 69 gallons with a standard deviation of 8.3 gallons per day.
There are seven cards with digits 0,1, 2, 3, 4, 5, and 6. A child takes four of the cards and places them in some order. What is the probability that he obtains a four-digit number less than 3265?
a time study is made of a tool crib and it is found that the probability of it taking more than t minutes to fill an
the amounts a soft drink machine is designed to dispense for each drink are normally distributed with a mean of 12.2
The primary and secondary winding of a three-phase transformer rated at 400/230 kV are both wye-connected. Calculate the primary and secondary turns of each phase, knowing that the insulation between two consecutive turns can sustain 50 V. Determi..
R2 000 is invested at 10% per annum compounded half-yearly. After three months, the interest rate changes to 12% per annum compounded monthly. Find the value of the investment after two years.
a hospital conducted a study of waiting time in its emergencyroom. the hospital has a main campus and three satellite
You are given cholesterol levels of 13 men and 12 women as below. Use Wilcoxan Rank-Sum Test. Sort 25 numbers and rank them from smallest to largest, and fill up the ranks in the table. b. Find µR and σR. Calculate test statistic z.
the following information gives the number of days absent from work for a population of 5 workers at a small factory.
Identify the sample space and possible events that could occur. Use your judgment in arriving at an approximate probability for the event(s) and complement(s) you've identified.
Given the following data for a two-way ANOVA, identify the sets of null and alternative hypotheses, then use the 0.05 level in testing each null hypothesis.
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