2) The linear correlation coefficient is r= (Round to three decimal places as needed.) 3) Determine the null and alternative hypotheses.
1) Check Image
2)
The linear
(Round to three decimal places as needed.)
3)
Determine the null and alternative hypotheses.
H0: ρ
H1: ρ
(Type integers or decimals. Do not round.)
4)
The test statistic is t=
(Round to three decimal places as needed.)
5)
The P-value is
(Round to three decimal places as needed.)
6)
Because the P-value of the linear correlation coefficient is? the significance level, there? sufficient evidence to support the claim that there is a linear correlation between bill amounts and tip amounts.
7)
If everyone were to tip with the same percentage, then r= .
(Round to three decimal places as needed.)
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Scatter plot:
Excel Procedure:
Enter x and y in Excel sheet>Select the columns of x and y> Insert>“Insert scatter or bubble chart” option>Scatter under Charts.
Excel Output:
Correct option: option C.
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