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tock market analyst compiled the daily rates of return for a stock. The analyst wanted to esti mean rate of return and sampled rates from different 120 days. Suppose the sample mean s 8.3 and the sum of squared deviations (Σ(Xį – X)²) was 134.2. The analyst wants to bui erval estimate for the mean rate of return so that the interval brackets the true population m ha probability 0.99. What is the lowest number in that interval? Answer correct to 2 decima ces.

tock market analyst compiled the daily rates of return for a stock. The analyst wanted to esti mean rate of return and sampled rates from different 120 days. Suppose the sample mean s 8.3 and the sum of squared deviations (Σ(Xį – X)²) was 134.2. The analyst wants to bui erval estimate for the mean rate of return so that the interval brackets the true population m ha probability 0.99. What is the lowest number in that interval? Answer correct to 2 decima ces.

MATLAB: An Introduction with Applications
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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A stock market analyst compiled the daily rates of return for a stock. The analyst wanted to estimate the mean rate of return and sampled rates from different 120 days. Suppose the sample mean (X) was 8.3 and the sum of squared deviations (Σ(X; — X)²) was 134.2. The analyst wants to build an interval estimate for the mean rate of return so that the interval brackets the true population mean with a probability 0.99. What is the lowest number in that interval? Answer correct to 2 decimal places.
Transcribed Image Text:A stock market analyst compiled the daily rates of return for a stock. The analyst wanted to estimate the mean rate of return and sampled rates from different 120 days. Suppose the sample mean (X) was 8.3 and the sum of squared deviations (Σ(X; — X)²) was 134.2. The analyst wants to build an interval estimate for the mean rate of return so that the interval brackets the true population mean with a probability 0.99. What is the lowest number in that interval? Answer correct to 2 decimal places.
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