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Cluster Sampling and Area Sampling: Cluster sampling involves grouping the population and then selecting the group or the cluster rather than individual elements for inclusion in the sample. The clustering approach can however make the sampling procedure relatively easier and increase the efficiency of fieldwork especially in the case of personal interviews,
Area sampling is generally done when the total geographical area of interest is big one. We first divide the total area into a number of smaller non over lapping areas generally called geographical clusters then a number of these smaller areas are randomly selected and all units in the small areas are included in the sample.
Differentiate between historigrams and histogram
i)A sionusodial signal has the form x(t) = Asin?t Derive an expression for the autocorrelation Rxx(λ) II) Explain the significance of this result in term of the frequen
CALCULATIONS OF MEAN USING PHSTAT
An audit of the accounting records of Loch Ness Ltd. for the year ending 30 June 2012 discovered that the ending inventory balance was over-valued by $35,000
calculate the probabilities correct to 6 decimal places. Let pie = 0.02. a. P(X less than 3,
1. Generate 1000 samples for each of the following discrete random variables: (a). Binomial distribution with n=40, p=0.7, and distr. with n=50, p=0.5 (b). Geometric distribu
I need help with the adjusting entries.
In Ireland, Davoren et el (2015) report that that 65.2% of male University students self-reported alcohol consumption levels which are classified as hazardous. A random sample of
1.) Consider two chains R and S, each having 3 and 6 links respectively. Each link's resisting strength is normally distributed with a mean of 60,000 psi and standard deviation of
Studies have linked brain size in infants and toddlers to a number of future ailments, including autism. One study looked at the brain sizes of 30 autistic boys and 12 nonautistic
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