The temperature was increased each time Simon completed the task.
Xiang believes that as the room temperature increases, Simon's score will decrease.
Xiang calculates the product moment correlation coefficient from her data as -0.9286
(b) Use this calculated value to carry out a suitable hypothesis test to investigate her belief at
a 5% level of significance. State clearly your hypotheses and your critical value.
(c) Comment on how this concern may affect Xiang’s conclusion to the test in part (b).