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Part B: Results Write Up Confidence Interval Analysis: 95% Confidence Interval for Population Mean is (…...

Part B: Results Write Up

Confidence Interval Analysis: 95% Confidence Interval for Population Mean is (… , …)

meaning generally expenses on … is between … and …

Two Sample Hypothesis Test Analysis:
Describe in words results of Hypothesis Testing.

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A confidence interval, refers to the probability that a population parameter will fall between two set values for a certain proportion of times. 95% Confidence interval interval is a range of values that you can be 95% certain contains the true mean of the population. The 95% confidence interval defines a range of values that you can be 95% certain contains the population means.

Two sample test is a test performed on the data of two samples.each independently obtained from a different given population. The purpose of the test is to determine whether the difference between these two population is statistically significant.

Statistical Hypothesis is an assumption about a population parameter. This assumption is may or may not be true. Hypothesis testing refers to the formal procedures used by statistician to accept or reject statistical hypothesis.

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