Use the formula 
to calculate the lower and upper limits of the 95% confidence interval for a sample of N = 12 with a mean 
= 6.00 and standard error of the mean 
= 1.15.
a. (3.47, 8.53)
b. (3.93, 8.07)
c. (2.43, 9.57)
d. (2.65, 9.35)
a. (3.47, 8.53)
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A researcher selects a sample of 100 participants from a population with a mean of 38 and a standard deviation of 20. About 68% of the sample means in this sampling distribution should be between a sample mean of
A. 18 and 58. B. 34 and 38. C. 38 and 44. D. 36 and 40.
Local business can benefit from working closely with schools by:
A) Having the opportunity to have a positive influence on the educational system B) Creating a potential source of employment for graduating students C) Sending their employees back to get their high school degrees D) Both A and B
Which of the following would be a reason that teachers might resist a change in curriculum?
a. They don’t want to change the way they’ve been teaching, especially if they’ve experienced success with those methods and materials. b. They don’t understand the content of the new curriculum, because it was not introduced during their methods course work during teacher preparation. c. They are hesitant to accept change because they worry what the school community, especially parents, will think of the change. d. They resist change because they don’t see the need for it