Prediction interval for the overall rating of an individual

Assignment Help Basic Statistics

Reference no: EM13995422

In testing eight value notebook computers, PC World reported various physical and performance mea- sures of each. Data included overall rating, street price, PC WorldBench 4 performance score, and battery life,

Computer: 5 6 7 8

Overall Rating:	75	74	72	72
Street Price:	1857	1865	1699	1298
Performance Score:	100	98	104	91
Battery Life (hours):	1.88	3.00	2.38	2.33

a. From these data, obtain the multiple regression equa- tion estimating overall rating on the basis of the other three variables; then determine and interpret the approximate 95% confidence interval for the mean overall rating of notebook computers having a 1000 street price, a performance score of 100, and a 2.50-hour battery life.

b. Determine the 95% prediction interval for the overall rating of an individual notebook computer with a $1000 street price, a performance score of 100, and a 2.50-hour battery life.

Reference no: EM13995422

Questions Cloud

What action did the trial court take : What action did the trial court take? Again, this is a procedural question, usually involving the granting or denial of a motion. Do not tell me why the court took the action - just what action it took

What is the component of net electric field at the origin : Two thin infinite sheets of insulating material with charge densities sigma 1 = 2 x 10^-6 C/m^2 and sigma 2= 5x10^-6 C/m^2 are located at x1= -20cm and x2= 10cm respectively. What is the component of net electric field at the origin ,x = 0.0 cm?

Mean number of new visitors for clubs : a. 95% confidence interval for the mean number of new visitors for clubs using a 5-column-inch ad and offering an $80 discount. b. 95% prediction interval for the number of new visi- tors to a given club when the ad is 5 column-inches and the discou..

Find the force of gravity on the mass : A machine lifts a mass of 3 kg a distance of 8 meters in 6 seconds. Find the force of gravity on the mass, the energy needed to lift the mass and The power delivered.

Prediction interval for the overall rating of an individual : Determine the 95% prediction interval for the overall rating of an individual notebook computer with a $1000 street price, a performance score of 100, and a 2.50-hour battery life.

What is the angular momentum of the wheel : What is the angular momentum (L) of the wheel after 3 seconds? What is the speed of a point on rim of the wheel after 3 seconds?

How is rule making different than legislation : How is rule making different than legislation? Does one carry more weight than the other? Do laws and rules affect citizens in the same way? Why or why not

Find the speed of the two cars after collision : Find the speed of the two cars after collision. If they then hit a concrete wall and stop without rebounding, what is the impulse delivered by the concrete wall?

Confidence interval for the mean rating : 1. Given the printout in Exercise 16.15, determine the approximate a. 90% confidence interval for the mean rating on test 4 for units that have been rated at 300, 500, and 400 on the first three tests.

User Account

All Pages