A group of 50 computer science students were taught introductory computer programming class with an innovative teaching method that used a graphical interface and drag-and-drop methods of creating computer programs. At the end of the class, 43 of these students said that they felt confident in their ability to write computer programs. Another group of 40 students were taught the same material using a standard method. At the end of class, 25 of these students said they felt confident. Assume that each class contained a simple random sample of students. Find a 99% confidence interval for the difference between the proportions of students who felt confident.
What will be an ideal response?
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A. A broken stabilizer link B. Sagged coil springs C. Worn strut rod bushings D. Worn upper control arm bushings
A support column in the shape of a frustum of a right circular cone has a slant height of 12.25 feet. The smaller base is 13.00 inches in diameter and the larger base is 18.75 inches in diameter. Compute the total surface area in square feet rounded to 3 significant digits.
Fill in the blank(s) with the appropriate word(s).
Before operating the vertical band machine, you should:
A) Check the speed range transmission oil level B) Check the hydraulic oil level C) Lubricate the variable speed pulley hub D) All of the above
Safety hazards to consider when working around a wind turbine drive train include: entanglement, pinch, and ___________.
A. crush B. electrocution C. injection D. All answers are correct