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Cerebral blood flow (CBF) in the brains of stroke patients is normally distributed random variable. A random sample of 25 stroke patients resulted in a sample variance of 196 square units. Is it sufficient sample evidence that population variance for population of CBF measurements of stroke patients is larger than 100 square units? Test the appropriate hypothesis. Use a a. State null and research hypotheses about population variance ². H: H₁: = 0.05. b. Find the observed value of test statistic. Keep 3 digits after decimal point in the expression for observed value of test statistics. 2 The observed value of test statistic is bs.

Cerebral blood flow (CBF) in the brains of stroke patients is normally distributed random variable. A random sample of 25 stroke patients resulted in a sample variance of 196 square units. Is it sufficient sample evidence that population variance for population of CBF measurements of stroke patients is larger than 100 square units? Test the appropriate hypothesis. Use a a. State null and research hypotheses about population variance ². H: H₁: = 0.05. b. Find the observed value of test statistic. Keep 3 digits after decimal point in the expression for observed value of test statistics. 2 The observed value of test statistic is bs.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Cerebral blood flow (CBF) in the brains of stroke patients is normally distributed random variable. A random sample of 25 stroke patients resulted in a sample variance of 196 square units. Is it sufficient sample evidence that population variance for population of CBF measurements of stroke patients is larger than 100 square units? Test the appropriate hypothesis. Use a = 0.05. a. State null and research hypotheses about population variance ♂². H: H₁ : b. Find the observed value of test statistic. Keep 3 digits after decimal point in the expression for observed value of test statistics. The observed value of test statistic is obs. e. State the rejection region(in the form of inequality). The rejection region is X² C. Insert the word sufficient or insufficient into the following statement. There is _sample evidence to conclude that population variance for population of CBF measurements of stroke patients is larger than 100 square units. ♥ IDA
Transcribed Image Text:Cerebral blood flow (CBF) in the brains of stroke patients is normally distributed random variable. A random sample of 25 stroke patients resulted in a sample variance of 196 square units. Is it sufficient sample evidence that population variance for population of CBF measurements of stroke patients is larger than 100 square units? Test the appropriate hypothesis. Use a = 0.05. a. State null and research hypotheses about population variance ♂². H: H₁ : b. Find the observed value of test statistic. Keep 3 digits after decimal point in the expression for observed value of test statistics. The observed value of test statistic is obs. e. State the rejection region(in the form of inequality). The rejection region is X² C. Insert the word sufficient or insufficient into the following statement. There is _sample evidence to conclude that population variance for population of CBF measurements of stroke patients is larger than 100 square units. ♥ IDA
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