阿摩線上測驗登入

首頁 > 研究所、轉學考(插大)◆統計學 > 110年 - 110 國立臺灣大學_碩士班招生考試_農業經濟研究所:統計學(E)#102206 >

題組內容

3.(25%) The following table was obtained form the regression analysis.
Please answer the following questions.

(8) Determine a 99% confidence interval for the coefficient of x₁?(3%)

其他申論題

(4) What are the values of the standard deviation of errors, the coefficient of multiple determination, the adjusted coefficient of multiple determination, SST, SSR, SSE, MSR, and MSE? (3%)

(5) Write the valucs of the standard deviation, the observed value of t for the estimated coefficient b4.(1%)

(6) What is the predicted value of y for x1=210, x2=195, x3=260, and D1=1?(1%)

(7) What is the point estimate of the expected (mean) value of y for all elements given that x1=290, x2=230, x3=195,and D1=0?(1%)

(9) Using the 2.5% significance level, can you conclude that the coefficient of x2 is positive? (3%)

(10) Using the 5% significance level, test whether or not the coefficients of all independent variables in the population regression model are equal to zero. (4%)

5.(15%) Let X and Y be two independent random variables that follow a Poisson distribution with rate parameter θ and λ, respectively, i.e., X ~ Poisson(θ) and Y ~ Poisson(λ), Show that the distribution of X/(X+Y) is binomial with success probabilityθ/(θ+λ). Note: the probability density function of a Poisson distribution with rate parameter y is

(1)Find E[Y], Var[Y], and Cov(X, Y). (15%)

阿摩線上測驗

提供最完整的考試資料庫，包含歷年試題、詳解、申論題等學習資源，
幫助學生有效準備各類考試。

© 2008-2026 Yamol Tech Ltd. All Rights Reserved.
阿摩線上測驗--最強大的互動線上測驗版權所有

如有任何問題或建議，歡迎聯繫我們