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Does the given data show a seasonal effect using moving average method?
1
2
3
4
1980
938
759
631
871
1981
919
720
633
857
1982
912
704
630
847
1983
903
692
635
839
Does the data show a seasonal effect? Assume that it does forecast the figures for 1984.
Which is the probability that the median of the sample is between $17 and $20?
A noted psychic was tested for ESP. The psychic was presented with 400 cards face down and asked to determine if each card was marked with one of four symbols: a star, cross, circle, or square. The psychic was correct in 120 cases. Let p represent..
What was the critical F value chosen?
Suppose that an IQ test was given to a large group of persons, the scores are assumed to be from a normally distributed population, that mean = 100 and s (standard deviation) = 15.
Use the trend equation to calculate the points for 2003 and 2005. Plot them on the graph and draw the regression line.
A typical problem statement is correlation research is _____________
At 0.05 level of significance, is there evidence that proportion of claims processed under this new system is higher than article reported for previous system?
Draw a tree diagram representing the data. What is the probability that a vehicle stolen in this city will never be recovered?
A major study examined the relationship between cause of death (heart attack, cancer, stroke, accident, etc.) and age. A good way to graphically represent the relationship is with
The null hypothesis is to be tested at the 10% level of significance. The critical value from the table is:
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
Compute the variance and standard deviation
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