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When we have data that are measured at the interval/ratio level of measurement, there are:
A) less measures of dispersion to employ.
B) none of the choice given.
C) issues with the mean deviation.
D) more measures of dispersion to employ.
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
Suppose that 50% of all people are opposed, evaluate probability of getting at least 89% opposed in survey of 1012 randomly selected people.
In a sample of 20 men, the mean height was 178 cm. In a sample of 30 women, the mean height was 164 cm. What was the mean height for both groups put together?
How many voters required to be sampled to evaluate the proportion within 0.05 with 95% confidence?
Solve different inventory control problems using an appropriate OR method.
In optimal solution, determinethe critical path?
Out of 1000 people surveyed, 600 belonged to urban areas and rest to rural areas. Among 500 who visited other states , 400 belonged to urban areas. Test 5 % level of significance whether area and visiting other state are dependent.
Estimate the values using multiple regression models. An air conditioning as well as heating repair firm conducted a study to determine if the outside temperature, Illustrate the forecasted monthly electric bill.
Now compute the standard deviation for this distribution.
Using symbols mention null hypothesis and alternative hypothesis.
Are the events "Republican" and "30-44" independent? Justify your answer. Are the events "Democrat" and "65+" independent? Justify your answer.
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