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One-sample t-test
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Questions (215)
The director of an inner-city hospital believes that the average cost per gunshot injury of patients admitted to the
1 answer
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Anonymous
452 views
What hypothesis testing procedure should you use to answer these questions? Assume all samples are simple random samples, and
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44 views
What hypothesis testing procedure should you use to answer these questions? Assume all samples are simple random samples, and
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46 views
A car company says that the mean gas mileage for its luxury sedan is 21 mpg. You believe the mean gas mileage is lower than this
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The mean life of 100 bulbs produced by a company is computed to be 1570 hours with standard deviation of 120hours. the
company
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certain commodity is known to have a price that is stable through time and doesn't change according to any known trend. The
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The mean life of 100 bulbs produced by a company is assumed
to be 1570 hours with standard deviation of 120hours. the company
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21 views
The height of 10males of a given locality are found to be
70,67,62,68,61,68,70,64,64𝑎𝑛𝑑66𝑖𝑛ℎ𝑒𝑠. Is this
1 answer
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Suppose that: x = 197.1, μ = 191, α = 5%, δ = 25.6, η = 100. Test the claims that, population mean is more than 191.
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Perform a hypothesis test that the true average Mwanaidi score is more than 70, as well as the corresponding confidence
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21 views
The mean life of 100 bulbs produced by the a company is
computed to be 1570 hours with standard deviation of 120 hours. The
1 answer
asked anonymously
24 views
A typist claims that he can take dictations at the rate of more than
120 words per minutes. of the 12 tests given to him , he
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31 views
1 A random sample of 6 steel beams has a mean compressive strength of 58,392 p.s.i (pounds per square inch) with a standard
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9 views
Dr. Yentz reads a report that claims the average college male drinks 9 alcoholic beverages a week. He wants to determine if
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asked anonymously
14 views
It is claimed that a random sample of 100 tyres with a mean life of 15269 km is drawn from a population of tyres which has a
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asked by
Rajesh
3 views
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Parent Categories (8)
Comparing means
Hypothesis Test
Hypothesis Testing
Significance Testing
Statistical Hypothesis Testing
Statistics and Data Analysis
Student's t-test
Testing of Means