Question

In an attempt to develop a model of wine quality as judged by wine​ experts, data...

In an attempt to develop a model of wine quality as judged by wine​ experts, data on alcohol content and wine quality was collected from variants of a particular wine. From a sample of 21​wines, a model was created using the percentages of alcohol to predict wine quality. From the results of that​ regression, b1 = 0.3607 and Sb1 = 0.1879

a. At the 0.05 level of​ significance, is there evidence of a linear relationship between the percentage of alcohol and wine​ quality?

Determine the Hypothesis for the test

Compute the test statistic

Identify the P-Value

b. Construct a​ 95% confidence interval estimate of the population​ slope,β1.

Homework Answers

Answer #1

Solution:

I give 100% to solve your queries. I'm waiting for the feedback and please like it...
Thank You..!!

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A US consumer lobby wishes to develop a model to predict gasoline usage, as measured by...
A US consumer lobby wishes to develop a model to predict gasoline usage, as measured by miles per gallon, based on the weight of the car in pounds. The Excel data file AUTO.xls (contained in a folder under the CML Quizzes tab) contains data on this for fifty recent models. Use Excel Data Analysis to estimate a linear model for the relationship, a 95% confidence interval for the slope coefficient and the residual plot. State all numeric answers below correct...
Consider the following data for two variables, x and y. x 22 24 26 30 35...
Consider the following data for two variables, x and y. x 22 24 26 30 35 40 y 13 22 34 34 41 35 (a) Develop an estimated regression equation for the data of the form ŷ = b0 + b1x.  (Round b0 to one decimal place and b1 to three decimal places.) ŷ = (b) Use the results from part (a) to test for a significant relationship between x and y. Use α = 0.05 Find the value of the...
Data on the water quality in the eastern United States was obtained by a researcher who...
Data on the water quality in the eastern United States was obtained by a researcher who wanted to ascertain whether or not the amount of particulates in water (ppm) could be accurately used to predict water quality score. Suppose we fit the following simple linear regression model: Qualityi = ? 0 + ? 1 × particulatesi + ? i where the deviations ?i were assumed to be independent and Normally distributed with mean 0 and standard deviation ?. This model...
Let us instead fit a linear regression model to the data on employee sales. in particular,...
Let us instead fit a linear regression model to the data on employee sales. in particular, we fit the model: sales = b0 + b1*employee group + e, where employee group is a categorical variable with values a, b, and c. we set group a to be the reference category.  from this model we get the following output. from this output, 1. what can we conclude is the mean sales for group a (in dollars/day)? 2.what can you conclude is the...
A highway department is studying the relationship between traffic flow and speed. The following model has...
A highway department is studying the relationship between traffic flow and speed. The following model has been hypothesized: y = β0 + β1x + ε y = traffic flow in vehicles per hour x = vehicle speed in miles per hour. The following data were collected during rush hour for six highways leading out of the city. Traffic Flow (y) Vehicle Speed (x) 1,257 35 1,331 40 1,227 30 1,336 45 1,349 50 1,125 25 In working further with this...
3.An accountant for a large department store would like to develop a model to predict the...
3.An accountant for a large department store would like to develop a model to predict the amount of time it takes to process invoices. Data are collected from the 30 working days and the number of invoices processed and completion time (in hours) are used to obtain the following PHStat output. 1. The value of the t-test statistic to test whether time is linearly dependent on the number of invoices to be processed is? 2. The value of the coefficient...
Question 1- Choose the best option I-When calculating an F ratio for an ANOVA test, what...
Question 1- Choose the best option I-When calculating an F ratio for an ANOVA test, what is the general pattern? a. There is no relationship between F ratio and p-value b. F ratio equal the p-value c. F ratio is always greater than the p-value d. In general, the smaller the F ratio the smaller the p-value. e. In general, the larger the F ratio the smaller the p-value. II-Which of the following tools is not appropriate for studying the...
The accompanying data represent the total compensation for 12 randomly selected chief executive officers (CEOs) and...
The accompanying data represent the total compensation for 12 randomly selected chief executive officers (CEOs) and the company's stock performance. Use the data to complete parts (a) through (d). 3 Click the icon to view the data table. Data Table of Compensation and Stock Performance Company    Compensation (millions of dollars)   StockReturn (%) A                                     13.82                                       71.39 B                                        3.83                                     69.37 C                                        6.16                                     141.42 D                                        1.95                                      37.61 E                                         1.13                                      10.34 F                                         3.71                                     29.55 G                                       11.96                                      0.77 H                                       6.22                                      62.48 I                                         9.31                                       53.21 J                                       ...
12.6 Can a pretest on mathematics skills predict success in a statistics course?  Assume students in an...
12.6 Can a pretest on mathematics skills predict success in a statistics course?  Assume students in an introductory stats class can be considered a random sample from a larger population of statistics students.  These 62 students took a pretest at the beginning of the semester, and their score from the pre-test and their score from the final exam in the course were recorded.  The least squares regression line was found to be y = 13.8 + 0.81x, and the standard error of b1...
4.A coffee company uses a? data-based approach to improving the quality and customer satisfaction of its...
4.A coffee company uses a? data-based approach to improving the quality and customer satisfaction of its products. When survey data indicated that the coffee company needed to improve its?package-sealing process, an experiment was conducted to determine the factors in the? bag-sealing equipment that might be affecting the ease of opening the bag without tearing the inner liner of the bag. One factor that could affect the rating of the ability of the bag to resist tears was the plate gap...