# Category: Correlation and Regression

Statistics Assignment Library

#### Solved (Free): A calculus instructor asked a random sample of 8 students to record their study times per lesson in calculus course

A calculus instructor asked a random sample of 8 students to record their study times per lesson in calculus course. The following table represents the data for total study times…

#### Solved (Free): A STAT 200 instructor believes that the average quiz score is a good predictor of final exam score

A STAT 200 instructor believes that the average quiz score is a good predictor of final exam score. A random sample of 10 students produced the following data where x…

#### Solved (Free): The following table lists midterm and final exam grades for randomly selected students in a statistics course

The following table lists midterm and final exam grades for randomly selected students in a statistics course: Midterm (x) 82 65 93 70 80 Final (y) 94 77 94 79…

#### Solved (Free): A company is providing hardened steel struts for the aircraft industry and you have been asked to investigate the relationship between hardening temperature

A company is providing hardened steel struts for the aircraft industry and you have been asked to investigate the relationship between hardening temperature (X) amd the percentage of carbon in…

#### Solved (Free): The following results were obtained experimentally when verifying Hooke’s Law

The following results were obtained experimentally when verifying Hooke's Law. Load (N) Extension (mm) 2 2 5 23 8 62 11 119 15 223 a. Create a scatter plot. b.…

#### Solved (Free): In an experiment to determine the relationship between frequency and the inductive reactance of an electrical circuit

In an experiment to determine the relationship between frequency and the inductive reactance of an electrical circuit, the following results were obtained : Frequency (Hertz) Inductive reactance (Ohms) 50 30…

#### Solved: A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 18 and 29

A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 18 and 29. Participants in the…

#### Solved: The accompanying table illustrates the number of movie theaters showing a popular film and the film’s weekly gross earnings

The accompanying table illustrates the number of movie theaters showing a popular film and the film's weekly gross earnings, in millions of dollars. Number of Theaters (x) Gross Earnings (y)…

#### Solved: Researchers-have-collected-data-on-the-hours-of-television-watched-in-a-day-and-the-age-of-a-person.-You-are-given-the-d

Researchers have collected data on the hours of television watched in a day and the age of a person. You are given the data below. Hours of Television 1 3…

#### Solved-The torque, T Nm, required to rotate shafts of different diameters, D mm, on a machine has been tested and recorded below

The torque, T Nm, required to rotate shafts of different diameters, D mm, on a machine has been tested and recorded below. D (mm) 6 10 14 18 21 25…