Тypes:i) Equal Allocation - this is used when you want to obtain an equal number of samplesfrom each stratum. Divide the sample size by the number of strata.n =where n is the sample size, k is the number of strata and ng is the sample size fromeach stratum.Example:Suppose there are 3000 DLSMHSI students and you only need a sample of n =100O. Ifthere are k =8 identified strata (CM, CN, CRS, CHS, CP, CMIT, CMLS, SHS), thenng =implying that there are [ex1] samples to be taken from each collegeand department.What if we want a sample of n = 800 only?ng =implying that there are [ex2] samples to be taken from each collegeand department.

Here in the stratified random sampling, the total sample size n is divided equally among all the…

Answered: Туpes: i) Equal Allocation - this is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Wildlife biologist inspects 153 deer taken by hunters and find 32 of them carrying Lyme disease ticks. 1). If the scientist want to estimate the proportion of the deer that carry Lyme disease ticks within 2% with 90% confidence how many deer should they sample?
A farmer in Oman has a date farm, which he divides into Sregions. He weighs the dates produced in just one of the regions and ses that estanule to predict the weight of dates produced on the whole farm in all the regions identily the sampling technique Systematic Sampling Cluster Sampling Stratified Sampling Random Sampling
Match the name of the sampling method with the description of corresponding situation. Situations ask all the students in your math class pulling 50 names from a hat dividing the population that contains an equal number of men and women by Gender, and choosing 30 people of each gender randomly select four tables in the cafeteria and survey all the people at those four tables choosing every 5th person on a list Sampling Method b. PystematC d. Stratified e. Cluster
6. Setup: JP was curious about the sodium content of organic cornflakes. To investigate this, twenty 300-gram boxes of organic cornflakes were obtained and the sodium content was measured. The data (in milligrams) are as follows: 131.1, 130.7, 130.9, 129.5, 129.6, 128.8, 130.7, 128.3, 128.2, 129.7, 130.1, 129.3, 128.7, 129.0, 129.4, 130.4, 129.5, 130.1, 129.8, 130.0 Task: Perform a hypothesis test using R to determine if you can support a claim that the mean sodium content of this brand of cornflakes differs from 130 milligrams? Use a = 0.08 to make your decision. R Output: Upon running your analysis in R, you obtain the following results: One Sample t-test data: corn = 0.1121 t = -1.6659, df = alternative hypothesis: true mean is not equal to 130 19, р-value 92 percent confidence interval: 129.3458 130.0342 sample estimates: mean of x 129.69 Questions: (a) State the hypotheses used in performing this test. (b) Using the output above, state the decision (Reject or Not Reject Ho) of the…
A choral conductor has 1885 singers in her choir, some of them are professional singers. The conductor wants to estimate what percentage of singers are professional, but can't ask all 1885, so she instead asks 630 singers in front and finds 17 who are professionals. (a) Identify the sample.A. 17/1885B. 630C. singers who were askedD. None of the above. (b) Identify the populationA. percentage of entire singers who are professionalB. entire singersC. 17/1885D. None of the above. (c) What specific type of bias does this scenario demonstrate?A. Voluntary response samplingB. Convenience SamplingC. It is representative of the population.D. None of the above. (d) Identify the parameterA. range of values in which 95% values fallB. percentage of entire singers who are professionalC. 17D. None of the above.
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At a Stanford University,37%of students support green party.suppose a sample of size 94 students and are interested inthe population proportion of students who support that party.find the sampling distribution of sample proportion?
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