a randomized, double-blind experiment, 90 babies were randomly divided into a treatment group (n, = 45) and a control group (n2 = 45). After the study, the treatment group had a mean serum retinol concentration of 43.99 micrograms p eciliter (ug / dL) with a standard deviation of 17.88 ug / dL, while the control group had a mean serum retinol concentration of 13.19 pug / dL with a standard deviation of 9.61 ug / dL. Does the treatment group have a higher standard deviation erum retinol concentration than the control group at the a = 0.05 level of significance? It is known that serum retinol concentration is normally distributed. Use the P-value approach to perform the test. et a, represent the population standard deviation for the treatment group and a, represent the population standard deviation for the control group. State the null and alternative hypotheses for this test. Ho: 01 H: o, > 02 Ise technology to find the P-value for this test. he P-value is
a randomized, double-blind experiment, 90 babies were randomly divided into a treatment group (n, = 45) and a control group (n2 = 45). After the study, the treatment group had a mean serum retinol concentration of 43.99 micrograms p eciliter (ug / dL) with a standard deviation of 17.88 ug / dL, while the control group had a mean serum retinol concentration of 13.19 pug / dL with a standard deviation of 9.61 ug / dL. Does the treatment group have a higher standard deviation erum retinol concentration than the control group at the a = 0.05 level of significance? It is known that serum retinol concentration is normally distributed. Use the P-value approach to perform the test. et a, represent the population standard deviation for the treatment group and a, represent the population standard deviation for the control group. State the null and alternative hypotheses for this test. Ho: 01 H: o, > 02 Ise technology to find the P-value for this test. he P-value is
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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Transcribed Image Text:In a randomized, double-blind experiment, 90 babies were randomly divided into a treatment group (n, = 45) and a control group (n2 = 45). After the study, the treatment group had a mean serum retinol concentration of 43.99 micrograms per
deciliter (ug / dL) with a standard deviation of 17.88 ug / dL, while the control group had a mean serum retinol concentration of 13.19 µg / dL with a standard deviation of 9.61 µg / dL. Does the treatment group have a higher standard deviation for
serum retinol concentration than the control group at the a = 0.05 level of significance? It is known that serum retinol concentration is normally distributed. Use the P-value approach to perform the test.
Let o, represent the population standard deviation for the treatment group and o, represent the population standard deviation for the control group. State the null and alternative hypotheses for this test.
Ho:
02
H1:
01
>
02
Use technology to find the P-value for this test.
The P-value is.
(Round to three decimal places as needed.)
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