A fund manager wants to know if it is equally likely that the Dow Jones Industrial Average will go up each day of the week. For each day of the week, the fundmanager observes the following number of days when the Dow Jones Industrial Average goes up.Day of the WeekObservedMonday188Tuesday195Wednesday207Thursday192Friday218For the goodness-of-fit test, what are the degrees of freedom for the chi-squared test statistic? Multiple Cholce67

To find: For the goodness-of-fit test, what are the degrees of freedom for the chi-squared test statistic?Thus, Number of degrees of freedom is given by; DF = Number of Categories - 1 = k - 1 Here, k = 5 Thus , df = 5 - 1 = 4 Df = 4

Answered: A fund manager wants to know if it is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Section 5.4 (Please help with TI-84 calculator) thank you The average math SAT score is 521 with a standard deviation of 118. A particular high school claims that its students have unusually high math SAT scores. A random sample of 60 students from this school was selected, and the mean math SAT score was 565. Is the high school justified in its claim? Explain No or Yes, because the z-score is (_________) is unusual or usual since it does not lie or lies within the range of a usual event, namely within ( 1standard deviation, 2 standard deviation, or 3 standard deviation) of the mean of the sample means. (Round to two decimal places as needed.)
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STATE: Andrew plans to retire in 4040 years. He plans to invest part of his retirement funds in stocks, so he seeks out information on past returns. He learns that from 1966 to 2015, the annual returns on S&P 500500 had mean 11.0%11.0% and standard deviation 17.0%17.0% . PLAN: The distribution of annual returns on common stocks is roughly symmetric, so the mean return over even a moderate number of years is close to Normal. We can use the Central Limit Theorem to make an inference. SOLVE: What is the probability, ?1p1 , assuming that the past pattern of variation continues, that the mean annual return on common stocks over the next 4040 years will exceed 10%10% ? (Enter your answer rounded to two decimal places.) What is the probability, ?2p2 , that the mean return will be less than 5%5% ? (Enter your answer rounded to two decimal places.)

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