If the researcher decides to test this hypothesis at the α=0.05 level of significance, determine the critical value. Draw a chi-squared distribution and depict the critical region Will the researcher reject the null hypothesis? Why? Choose the correct answer below. A. Yes,because χ20<χ20.95. B. No, because χ20<χ20.95. C.No, because χ20>χ20.95. D. Yes, because χ20>χ20.95
If the researcher decides to test this hypothesis at the α=0.05 level of significance, determine the critical value. Draw a chi-squared distribution and depict the critical region Will the researcher reject the null hypothesis? Why? Choose the correct answer below. A. Yes,because χ20<χ20.95. B. No, because χ20<χ20.95. C.No, because χ20>χ20.95. D. Yes, because χ20>χ20.95
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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Question
To test H0: σ=2.1versus H1: σ<2.1, a random sample of size n=21 is obtained from a population that is known to be normally distributed.
If the sample standard deviation is determined to be s=1.9, compute the test statistic. χ20
If the researcher decides to test this hypothesis at the α=0.05 level of significance, determine the critical value.
Draw a chi-squared distribution and depict the critical region
Will the researcher reject the null hypothesis? Why?
Choose the correct answer below.
A. Yes,because χ20<χ20.95.
B. No, because χ20<χ20.95.
C.No, because χ20>χ20.95.
D. Yes, because χ20>χ20.95
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