In a simple linear regression based on 30 observations, the following information is provided: = -6.92
Question:
In a simple linear regression based on 30 observations, the following information is provided: = -6.92 + 1.35x and se = 2.78. Also, se (0) evaluated at x = 30 is 1.02.
a. Construct the 95% confidence interval for E(y) if x = 30.
b. Construct the 95% prediction interval for y if x equals 30.
c. Which interval is narrower? Explain.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 60% (10 reviews)
a With df n k 1 30 1 1 28 and 005 we find t 2df t 002528 2048 Also Thus ...View the full answer
Answered By
Carly Cimino
As a tutor, my focus is to help communicate and break down difficult concepts in a way that allows students greater accessibility and comprehension to their course material. I love helping others develop a sense of personal confidence and curiosity, and I'm looking forward to the chance to interact and work with you professionally and better your academic grades.
4.30+
12+ Reviews
21+ Question Solved
Related Book For
Essentials Of Business Statistics Communicating With Numbers
ISBN: 9780078020544
1st Edition
Authors: Sanjiv Jaggia, Alison Kelly
Question Posted:
Students also viewed these Statistics questions
-
In a simple linear regression based on 30 observations, it is found that SSE = 2540 and SST = 13,870. a. Calculate se2 and se. b. Calculate R2.
-
In a simple linear regression based on 30 observations, it is found that b1 = 3.25 and se(bj) = 1.36. Consider the hypotheses: H0: 1 = 0 and HA: 1 0. a. Calculate the value of the test statistic. b....
-
In a simple linear regression based on 30 observations, it is found that b1 = 7.2 and se(bj) = 1.8. Consider the hypotheses: H0: 1 10 and HA: 1 < 10. a. At the 5% significance level, find the...
-
Two Amps are connected in series the first amplifier is an inverting amplifier and the second amplifier is a non-inverting amplifier, which of the following resistors produce a gain of -36? Amp1 (Ri...
-
Scheduled loan payments of $1500 due in 6 months and $1900 due in 21 months are rescheduled as a payment of $2000 due in 3 years and a second payment due in 45 months. Determine the size of the...
-
Two satellites are in orbit around Mars with the same orbital radius. Satellite 2 has twice the mass of satellite 1. The radial acceleration of satellite 1 has magnitude a 1 . The radial acceleration...
-
As shown in Fig. 5-7p, a positive lens with focal length \(f\) is placed in contact with a pinhole screen in a Young's experiment. The lens and pinhole plane are at distance \(z_{1}\) from the source...
-
Kaler Company has sales of $1,210,000, cost of goods sold of $735,000, other operating expenses of $148,000, average invested assets of $3,400,000, and a hurdle rate of 12 percent. Required: 1....
-
The total sales of S (in thousands of DVD's) of a certain movie are given by the following formula where t is the number of months since the release of the DVD. Use the formula to answer the...
-
9. Consider the case of two financial assets and three market conditions (states). The table below gives the respective probability for each market condition and the return of each asset in each one...
-
The issues regarding executive compensation have received extensive media attention. The government is even considering a cap on high-lying salaries for executives (New York Times, February 9, 2009)....
-
In a multiple regression with 40 observations, the following sample regression equation is obtained: y = 12.8 + 2.6x 1 - 1.2x 2 with s e = 5.84. Also, when x 1 equals 15 and x 2 equals 6, Se (y 0 ) =...
-
Assume both benchmarks have a base CPI of 1 (ideal L2 cache). If having non-blocking cache improves the average number of concurrent L2 misses from 1 to 2, how much performance improvement does this...
-
Dell is considering replacing one of its material handling systems. The old system was purchased 7 years ago for \($130,000\) and was depreciated as MACRS-GDS 5-year property since the system is used...
-
A company owns a 5-year-old turret lathe that has a book value of $20,000. The present market value of the lathe is $16,000. A new turret lathe can be purchased for $45,000. Using a before-tax...
-
Allen Construction purchased a crane 6 years ago for \($130,000.\) They need a crane of this capacity for the next 5 years. Normal operation costs \($35,000\) per year. The current crane will have no...
-
Clear Water Company has a down-hole well auger that was purchased 3 years ago for \($30,000.\) O&M costs are \($13,000\) per year. Alternative A is to keep the existing auger, which has a current...
-
A specialty concrete mixer used in construction was purchased for \($300,000\) 7 years ago. Its annual O&M costs are \($105,000.\) At the end of the 8-year planning horizon, the mixer will have a...
-
(A) Write a balanced equation to represent the reaction of mercury(II) sulfide and calcium oxide to produce calcium sulfide, calcium sulfate, and mercury metal. (B) Write a balanced equation for the...
-
Controls can be identified based on their function. The functions are preventive, detective, and corrective. A. True B. False
-
MRT Ltd. reported 2024 earnings per share of 3.20 and had no discontinued operations. In 2025, EPS on income from continuing operations was 2.99, and EPS on net income was 3.49. Is this a favorable...
-
-1/7 - (-1/6)
-
8x 5x + 6 + 3y 2y 4
-
Evaluate (-2x) squared and 2x squared when x = 3
-
Characterize the nature of motivation, including its importance and focus Identify and describe the need theories on motivation. Identify and describe the behavior theories on motivation. Identify...
-
Calculate the amount that Astrid should withdraw from her college savings fund of $21000 if she wishes to withdraw equal amounts at the end of each month for four years. The annual nominal interest...
-
Jason borrows $ 10300 for the next 4 years at a variable interest rate. Assume that the interest accumulates for 4 years at an annual nominal rate of 11% compounded quarterly. Calculate the...
Study smarter with the SolutionInn App