The production of wine is a muli-billion-dollar worldwide industry. In an attemp
ID: 3044501 • Letter: T
Question
The production of wine is a muli-billion-dollar worldwide industry. In an attempt to develop a model of wine quality as judged by wine exports, data was collected from red wine variants from a particular type of forcign wine. A multiple lincar regression model was developed from a sample of 45 wines. The model was used to predict wine quality, measured on a scale from O (very bad) to 10 (excellent) based on the alcohol content) and the amount of chiorides. Use the accompanying results to complete parts (a) and (b) below. Standard Variable Coefficient Error tStatistic p-value 1.23498 111547 2637 0.10568 Chlorides, X29.11804 3.66052 1.11 4.03 2.49 Intercopt Alcohol, x0 0.0002 0.0084 a Construct a 95% confidence interval estimate of the population slope between wine quality and the percentage of alcohol. 2131 sp1 ,6396 (Round to four decimal places as needed.) b. At the 0.05 level of significance, determine whether each independent variable makes a significant contribution to the regression model. On the basis of these results, indicate the independent variables to include in this model. Choose the correct hypotheses forX, below. H1 : 10 O c. H1 : ,71 Find the test statistic forX STAT 4.3 Type an integer or a decimal. Do not round.) Determine the p-value for X p-value Type an integer or a decimal. Do not round.)Explanation / Answer
The Test Statistic for x1 is = 0.42637/0.10568 = 4.03
and p value is 0.0002 ( given) ( look the second row last value)
So, P value is 0.0002
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