GE122 - Final Examination, (Past Exam) --10. In an effort to persuade customers
ID: 3327279 • Letter: G
Question
GE122 - Final Examination, (Past Exam) --10. In an effort to persuade customers to reduce their electricity consumption, special discounts have been offered for low consumption customers. In Florida, the EPA estimates that 70% of the residences have qualified for these discounts. If a sample of 20 residences is selected, what is the probability 12 or more will have qualified for the discounts? Use Table 1 (Cumulative Binomial Probabilities) attached to the question sheets. (1) 0.017 (2) 0.113 For a random. sample of 9 women, the average resting pulse rate is x = 76 beats per minute, and the sample standard deviation is s = 5· (1) 0.557 (2) 0.745 (3) 0.772 (4) 0.887 11. The standard error ofthe sample mean is (3) 1.667 (4) 2.778 12. Consider a random sample with sample mean x. If the sample size is increased from n = 40 to n = 360, then the standard deviation of x will (1) remain the same. (2) increase by a factor of 9 (will be multiplied by 9).Explanation / Answer
Answer:
Based on the given information:
Probability that 12 or more will have qualified for discount can be determined as below:
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.