1. The sampling frequency of the following analog signal‚ s(t)=4 sin 150πt+2 cos 50πt should be‚ a) greater than 75Hz b) greater than 150Hz c) less than 150Hz d) greater than 50Hz 2. Which of the following signal is the example for deterministic signal? a) Step b) Ramp c) Exponential d) All of the above 3. For energy signals a) The energy will be finite and power will be infinite b) The energy will be finite and power will be zero c) The energy will be zero and power will be infinite d) Both energy
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Sampling Techniques Worksheet For each description of sampling‚ decide if the sampling technique is A. Simple Random B. Stratified C. Cluster D. Systematic E. Convenience 1. In order to estimate the percentage of defects in a recent manufacturing batch‚ a quality control manager at Intel selected every 8th chip that comes off the assembly line starting with the 3rd‚ until she obtains a sample of 140 chips. 2. In order to determine the average IQ of ninth-grade students‚ a school psychologist
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An import quota is a limit on the quantity of a good that can be produced abroad and sold domestically. It is a type of protectionist trade restriction that sets a physical limit on the quantity of a good that can be imported into a country in a given period of time. If a quota is put on a good‚ less of it is imported. Quotas‚ like other trade restrictions‚ are used to benefit the producers of a good in a domestic economy at the expense of all consumers of the good in that economy. Import Quotas are a
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Describe why this is a cluster sample. What is the psu? The ssu? Is it a one-stage or two-stage cluster sample? How would you estimate the percentage of households with guns‚ and the standard error of your estimate? What is the sampling population for this study? Do you think this sampling procedure results in a representative sample of households with children? Why‚ or why not? Solution: This is a cluster sample because all the elements within the clusters are selected. (Example: All parents who
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MULTIPHASE SAMPLING Multiphase sampling is one of the probability sampling techniques that usually consist of two or more of both probability and non-probability techniques in choosing the target sample The researchers will going to use purposive sampling in the first step On the other hand‚ the researchers will use cluster sampling technique‚ a probability sampling technique to randomize the population. Simple randomization sampling can be done using fish bowl method to get the names of the
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Research report: November 2010 Creative clusters and innovation Putting creativity on the map Caroline Chapain‚ Phil Cooke‚ Lisa De Propris‚ Stewart MacNeill and Juan Mateos-Garcia Disclaimer This work contains statistical data from ONS which is Crown copyright and reproduced with the permission of the controller of HMSO and Queen’s Printer for Scotland. The use of the ONS statistical data in this work does not imply the endorsement of the ONS in relation to the interpretation or analysis
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“Deciding on a sampling procedure for a study on understanding teaching and learning relations for minority children in Botswana classrooms” Sampling is a very important statistical tool used by researchers to find accurate results that represents the complete attributes of population. Different types of sampling are used for different type of data. For example: probability sampling is used for quantitative data as attributes of such data can easily be generalized to population
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Title : Ecological Sampling Objectives : 1. To learn the method of constructing a quadrate on an area of grassland in Biodiversity Park. 2. To estimate the population sizes of Species A using the quadrate sampling method. 3. To observe how abiotic factors affect the population of Species A. Introduction : Since there is an abundance of populations in a forest‚ it is impossible for us to study all of the populations due to financial constraints‚ time consuming and
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The Need of Convenience Foods in Present Scenario. Abstract: Rapid urbanization and changes in social and cultural practices have modified the food habits of the community. Industrial development in Indian cities has compelled labour from villages to migrate to cities in search of employment. It is estimated that within the next ten years‚ half of world’s population will be living and working in urban areas. Increase in buying power and long hours spent away from home commuting to work places
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Work sampling is a systematic assessment effort across early childhood programs for children three years of age through the sixth grade. In Pennsylvania work sampling is used in PA PreK Counts‚ Infant/toddler and preschool early intervention‚ star 3 and 4 childcare centers and more. Assessments that are gathered are used to answer questions about children’s learning‚ knowledge‚ progress‚ skills and interests. There are many different types of assessments such as; screening tools‚ diagnostic tests
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