Suppose that a poll was taken in order to assess the number of gypsy moth nests in Pennsylvania. Pollsters randomly selected 20 of 100 forestry plots in the state and then examined all of the trees in the 20 selected plots. Which of the following sampling plans was used in this poll? Group of answer choices Stratified Cluster Systematic Convenience

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A: Introduction There are 2 types sampling methods: Prob. methods Non-Prob. methods

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Q: Determine the sampling method described in each of these studies. stratified sample simple random…

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Q: Calculate the conditional distribution of Facebook use for each campus setting.

A: The Pennsylvania State University has its main campus in the town of State College and more than 20…

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A: Given: 3 children in the family

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A: Given:n=sample size=350x=110 The formula and calculations for sample proportion is:p^=xn  =110350…

Q: Consider the following: at Bernhardt College, 200 (of the 3,000) students were polled and asked how…

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Q: Jamu Sido Mampir Company has herbal medicine cottage branches in three locations. The company…

A: NoHerbal Hut 1Herbal Hut 2Herbal Hut…

Q: a. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round…

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Q: The city of Raleigh has 7,500 registered voters. There are two candidates for city council in an…

A: Given: n = 500 Number of voters who vote for brown X = 214

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Q: 18. The director of operations for an oil company wants to measure employee satisfaction at his…

A: Option A is correct.

Q: A hotel manager asked each guest that checked in on May 15th if they were more likely to use the…

A: Sol:- The sampling method used in this scenario is convenience sampling.

Q: Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your…

A: Given that    X Y X \cdot YX⋅Y X^2X2 Y^2Y2   19 19 361 361 361   21 15 315 441 225   26 9…

Q: . When an accurate and complete list of the population is not available, a sampling will suffer…

A: We want to tell you, which one is the correct choice.

Q: Why does this a situation call for a matched-pairs analysis?

A: Test is that whether there is difference between the measurements.

Q: Determine the regression equation. (Negative values should be indicated by a minus sign. Round your…

A: Police (X) Crimes (Y) (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 19 16 -2.25 5.0625…

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A: A sample is a subset of a population, whereas a population is a full set that represents every…

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A: applying one way ANOVA on above data:   Mean n Std. Dev Variances budgets 257.4 5 11.7388…

Q: Identify the sampling method used in each of the following studies:  Best Buy prints a survey…

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Q: Consider the following demographic data for a hypothetical state. Assume everyone votes along party…

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Q: Sampling Eye Color Based on a study by Dr. P. Sorita Soni at Indiana University, we know that eye…

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Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: In order to obtain the regression equation, first perform regression analysis for the data.

Q: St. John Hospital has five wards: A, B, C, D, and E. The numbers of patients in the wards are listed…

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Q: Which of the following are sources of sampling error and which are sources of nonsampling error?

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Q: A researcher asks a sample of brothers and sisters to rate how positive their family environment was…

A: Design of experiment is a branch of statistics. This basically deals with the planning, conducting…