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Hypothesis and Sampling

Question 1: Variability in Nature - Determine if the first 100 observations are representative of the overall population. Support with charts and statistics. Question 2: Probability Distributions - Describe which parameters changed the shape of the histograms most pronouncedly. Support with charts and statistics. Question 3: Hypothesis Testing - Generate appropriate t-tests and state hypotheses and conclusions. Question 4: Sample Size - Calculate the number of samples required to achieve 5% accuracy and recreate Figure 1.

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Added on  2022-10-19

About This Document

Learn about hypothesis and sampling in statistics with Desklib's study material. Get solved assignments, essays, dissertations and more. This article discusses representative samples, parameters affecting histograms, t-tests, confidence intervals and their minimum width. Subject: Statistics, Course Code: STAT101, Course Name: Introduction to Statistics, University: Not mentioned

Hypothesis and Sampling

Question 1: Variability in Nature - Determine if the first 100 observations are representative of the overall population. Support with charts and statistics. Question 2: Probability Distributions - Describe which parameters changed the shape of the histograms most pronouncedly. Support with charts and statistics. Question 3: Hypothesis Testing - Generate appropriate t-tests and state hypotheses and conclusions. Question 4: Sample Size - Calculate the number of samples required to achieve 5% accuracy and recreate Figure 1.

   Added on 2022-10-19

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Running head: HYPOTHESIS AND SAMPLING 1
Hypothesis and Sampling
<Name>
<University Name>
Hypothesis and Sampling_1
HYPOTHESIS AND SAMPLING 2
Questions & Answers
Q1: Are these samples representative of the overall population? Why or why not? Support your
response with screenshots of charts and statistics from the spreadsheet.
A representative sample has similar characteristics as the population. Having a sampled
the first 100 observations of the population it is noted that the sample is not representative since
we require a minimum of 375 samples from our population.
Sample ¿ ¿ ¿
Sample ¿ ¿ ¿
Sample ¿ 375.379
Confidence interval 95%
p 0.5 600.25
Error 0.04 1.5990519
population size 1002 Sample Size 375.378686
alpha/2 0.025
z score 1.96
Standard deviation 6.19366978
Hypothesis and Sampling_2
HYPOTHESIS AND SAMPLING 3
Having a roundup sample size of 376 gives a similar characteristics as the population
observe the trends below.
Hypothesis and Sampling_3
HYPOTHESIS AND SAMPLING 4
Q2: describe which parameters changed the shape of the histograms most pronouncedly. Support
your response with screenshots of charts and statistics from the spreadsheet.
Considering the following parameters, the population mean, population standard deviation and
sample size. The population standard deviation greatly affects the sample size which affects
Hypothesis and Sampling_4

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