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Assume that a single radar unit used to detect incoming missiles has a probability of 0.90 of correctly detecting an incoming missile attack. Furthermore, assume that four such individual and identical radar units (each with an individual probability of 0.90 of detecting an incoming missile attack) are used to create a radar installation system with the task of detecting incoming missile attacks.
A. What is the probability that a single radar unit correctly detects an incoming missile attack?
B. What is the probability that this multi-radar system correctly detects an incoming missile attack?
C. From the probabilities that you calculated in parts A and B, what is the advantage of the redundancy that is built into this multi-radar system?
Find out the suitable critical value(s) for this situation given a 0.05 significance level. Find out/compute the value of sample test statistic.
A medical researcher is interested in whether patient's left arms or right arms are longer. if 14 patients participate in this study (so that n left arms and n right arms are measured), how many degrees of freedom should the researcher use in her ..
Is the hot-air balloon significantly shorter than light rail? How can you tell? What do you tell university officials?
The F test is used in Analysis of Variance (ANOVA). When would a researcher use an ANOVA? Explain (one paragraph in length).
What is the total amount spent on consumer goods?
Carry out suitable multiple comparison procedure to determine the source of the difference.
Final scores averaged 66 for the treatment group; the SD was 21. For the control group, the figures were 59 and 20. What do you conclude?
Assuming that the variability is unchanged (i.e., σ = 6), is there sufficient evidence to suggest that the strength of the product has increased at the 1% level of significance?
Discuss why sampling is essential to many research designs, and why, if done correctly may be more accurate than attempting census measurement.
A researcher conductued a study of the access speed of 35 hard drives and concluded that his maximum error of estimate was 35. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he ..
Using the p-value approach, test the hypotheses at the 1% level of significance.
The number of shark attacks and deaths over a recent 5- year period is shown. Find the mean, median, mode, midrange, variance, and standard deviation for the date. Which data set is more valuable?
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