When act research, discovering the population mean and other population parameters is important A. TrueB. False

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It is frequently not feasible to examine the entire populace because that is impossible to watch all the item in the population A. TrueB. False
To examine the populace of consumer perceptions of new technology, sampling the the population is desired over surveying the population because_____.A. Sampling is an ext accurateB. We have the right to compute z-scoresC. It is quickerD. Sampling methods are simple
When testing the security of cars making use of crash tests, a sample of one or two cars is used because ______. A. Sampling is an ext accurateB. Cars are destroyedC. It is quickerD. The populace is an extremely large
A marketing for sure is studying customer preferences because that winter fashions in four different months. Native a populace of women 18-21 years of age, a arbitrarily sample that 100 women was selected in January. An additional random sample that 100 ladies was selected in March. One more random sample the 100 women was selected in June. One more random sample that 100 women was selected in September. What is the sample size?A. 4B. 100C. 400D. 1
When every the item in a populace have an equal possibility of being selected for a sample, the process is called _____. A. Basic random sampling B. Z-scoreC. Sampling errorD. Non-probability sampling
What is the difference in between a sample mean and the populace mean called?A. Typical error of the meanB. Sampling error C. Interval estimateD. Point estimate
Suppose we pick every 5th invoice in a file. What form of sampling is this?A. Arbitrarily B. ClusterC. StratifiedD. Systematic
All possible samples of size n are selected for a population and the mean of every sample is determined. What is the mean of the sample?A. The populace meanB. That is larger than the populace mean C. The is smaller sized than the population mean D. It can not be approximated in advance
When dividing a populace into subgroups so that a arbitrarily sample from each subgroup can be collected, what type of sampling is used?A. An easy random sampling B. Systematic sampling C. Stratified random sampling D. Swarm sampling
the true sampling error is generally not known because ______. A. µ is unknownB. µ is a arbitrarily variableC. σ2 is unknownD. The sample typical canoe it is in computed
The dimension of the sampling error is _____.A. Straight related to the sample size-- in various other words, the larger the sample size, the larger the sampling error B. Straight related to the population mean-- in various other words, the larger the mean, the larger the sampling error C. Inversely pertained to the sample size-- in other words, the larger the sample size, the smaller the sampling error D. Inversely pertained to the population mean-- in various other words, the smaller sized the traditional deviation, the larger the sampling error
C. Inversely related to the sample size00 in other words, the bigger the sample size, the smaller sized the sampling error
For a given population, the typical of every sample way (X bar) the sample size n, and the typical of every (N) populace observations (X) are ______.A. Same to (X bar)B. No equal C. Equal to ( x bar - mu)D. Same to the populace mean µ

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