Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 4%. A mutual-fund rating agency randomly selects 27 months and determines the rate of return for a certain fund. The standard deviation of the rate of return is computed to be 3.71%. Is there sufficient evidence to conclude that the fu has moderate risk at the a= 0.01 level of significance? A normal probability plot indicates that the monthly rates of return are normally distributed. Click the icon to view the table of critical values of the chi-square distribution. The null hypothesis is Ho The alternative hypothesis is H₁: Calculate the value of the test statistic. (Round to two decimal places as needed.) Identify the critical value(s) for this test. (Round to two decimal places as needed. Use a comma to separate answers as needed.) What is the correct conclusion at the α = 0.01 level of significance? than the critical value. Since the test statistic is the fund has moderate risk. T www Search the null hypothesis. There LOOLON sufficient evidence at the x = 0.01 level of significance to conclude that Next 1:58 PM 2/15/2023

Jack invests in a mutual fund with annual returns that follow a Normal model with mean 14% and standard deviation 9%. What is the probability Jack obtains an annual return greater than 25%?

The monthly utility bills in a city are normally​ distributed, with a mean of ​$100 and a standard deviation of ​$13. Find the probability that a randomly selected utility bill is​ (a) less than ​$69​, (b) between $85 and ​$120​, and​ (c) more than ​$130.

The average return for large-cap domestic stock funds over certain three years was 7.2%. Assume the three-year returns were normally distributed across funds with a standard deviation of 2.2%. What is the probability an individual large-cap domestic stock fund had a three-year return of 5% or less? Group of answer choices 0.10 0.28 0.21

Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 5%. A mutual-fund rating agency randomly selects 21 months and determines the rate of return for a certain fund. The standard deviation of the rate of return is computed to be 3.37%. Is there sufficient evidence to conclude that the fund has moderate risk at the a = 0.01 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: 0.0337. > The alternative hypothesis is H4: 0.0337. Calculate the value of the test statistic. 0.05. x² = (Round to three decimal places as n 0.0337. Use technology to determine the P-value for tie iosi diaidiu. The P-value is (Round to three decimal places as needed.) What is the correct conclusion at the a = 0.01 level of significance? Since the P-value is than the level of significance, the null…

Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 6​%. A​ mutual-fund rating agency randomly selects 23 months and determines the rate of return for a certain fund. The standard deviation of the rate of return is computed to be 5.26​%. Is there sufficient evidence to conclude that the fund has moderate risk at the α=0.05 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? The alternative hypothesis is? Calculate the value of the test statistic The​ P-value is ​(Round to three decimal places as​ needed.)   What is the correct conclusion at the  α=0.05 level of​ significance?

Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of retum is less than 5%. A mutual-fund rating agency randomly selects 29 months and determines the rate of return for a certain fund. The standard deviation of the rate of return is computed to be 4.63%. Is there sufficient evidence to conclude that the fund has moderate risk at the a=0.01 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: The alternative hypothesis is H₁: Calculate the value of the test statistic. ²=(Round to three decimal places as needed.) Use technology to determine the P-value for the test statistic. The P-value is (Round to three decimal places as needed.) What is the correct conclusion at the a = 0.01 level of significance? than the level of significance. the null sufficient evidence to conclude that the fund has moderate…

The monthly utility bills in a city are normally​ distributed, with a mean of $100 and a standard deviation of ​$13. Find the probability that a randomly selected utility bill is​ (a) less than $69​, (b) between ​$87 and ​$100​,and​ (c) more than ​$130.

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 2.58​%. 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 distribute   identify the null and alternate hypotnese,test statistic,pvalue and conclusion

Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 4​%. A​ mutual-fund rating agency randomly selects 21 months and determines the rate of return for a certain fund. The standard deviation of the rate of return is computed to be 2.71​%. Is there sufficient evidence to conclude that the fund has moderate risk at the α=0.05 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 H0​: σ or μ or p and less than or not equal or greater than or equals 2.7. The alternative hypothesis is H1​: μ or p or σ , greater than or less than or not equals or equals 2.7.   Calculate the value of the test statistic. X2 = _____ (Round to three decimal places as? needed.) Use technology to determine the? P-value for the test statistic. The? P-value is _______ (Round to three decimal places as?…