Look at the data below regarding the variables x = lowest barometric pressure as a cyclone approaches and y = maximum wind speed of the cyclone. Is the value of |r| large enough to conclude that lowest barometric pressure and wind speed of a cyclone are correlated? Use ? = 0.01. (Round your answer for r to four decimal places.)
Look at the data below regarding the variables x = lowest barometric pressure as a cyclone approaches and y = maximum wind speed of the cyclone. Is the value of |r| large enough to conclude that lowest barometric pressure and wind speed of a cyclone are
x 1004 975 992 935 970 928
y 40 100 65 145 70 151
r = ______
critical r = ______
b)
The hypotheses are given below:
Null hypothesis:
H0: ρ= 0
Alternative hypothesis:
Ha: ρ ≠ 0.
Enter the values of x in columns A1:A6 in Excel.
Enter the values of y in columns B1:B6 in Excel.
The value of the sample correlation coefficient, r is -0.987 using the Excel formula “=CORREL(A1:A6,B1:B6)
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