Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 3%. A mutual-fund rating agency randomly selects 26 months and determines the rate of return for a certain fund. The standard deviat of the rate of return is computed to be 2.22%. Is there sufficient evidence to conclude that the fund has moderate risk at the a = 0.10 level of significance? A normal probability plot indicates that the monthly rates of return are normally distributed. What are the correct hypotheses for this test? The null hypothesis is Ho: o = 0.03. The alternative hypothesis is H,: o < 0.03. Calculate the value of the test statistic. 2 = (Round to three decimal places as needed.)

MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Calculate the value of the test statistic.

Determine P value.

Reject or do not reject?

Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 3%. A mutual-fund rating agency randomly selects 26 months and determines the rate of return for a certain fund. The standard deviation of the rate of return is computed to be 2.22%. Is there sufficient evidence to conclude that the fund has moderate risk at the α = 0.10 level of significance? A normal probability plot indicates that the monthly rates of return are normally distributed.

What are the correct hypotheses for this test?

The null hypothesis is \( H_0: \sigma = 0.03 \).

The alternative hypothesis is \( H_1: \sigma < 0.03 \).

Calculate the value of the test statistic.

\[
\chi^2 = \, \text{(Round to three decimal places as needed.)}
\]
Transcribed Image Text:Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 3%. A mutual-fund rating agency randomly selects 26 months and determines the rate of return for a certain fund. The standard deviation of the rate of return is computed to be 2.22%. Is there sufficient evidence to conclude that the fund has moderate risk at the α = 0.10 level of significance? A normal probability plot indicates that the monthly rates of return are normally distributed. What are the correct hypotheses for this test? The null hypothesis is \( H_0: \sigma = 0.03 \). The alternative hypothesis is \( H_1: \sigma < 0.03 \). Calculate the value of the test statistic. \[ \chi^2 = \, \text{(Round to three decimal places as needed.)} \]
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