a scientist wants to determine whether or not the height of cacti, in feet, in africa is significantly higher than the height of mexican cacti. he selects random samples from both regions and obtains the following data.
Africa:
Mean = 12.1
Sample size = 201
Mexico:
Mean = 11.2
Sample size = 238
a. Which of the following would be the correct hypothesis test procedure to determine if there is a difference between the mean height of two cacti?
b. What is the value of the sample statistic to test those hypotheses?
c. If the T test statistic is 2.169, and df = 202, find the p-value.
d. Select the correct conclusion at alpha = 0.05.
e. Mark the correct statement at alpha = 0.05.
f. Explain the type of error, in context, that might have been made.
g. What would the p-value have been if we had done a two-tailed test?