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Provide an appropriate response. 1) Calculate the correlation coefficient, r, for the data below. A) 0.819 B) 0.990 C) 0.792 D) 0.881 2) Determine whether the normal sampling distribution can be used. The claim is p > 0.25 and the sample size is 11 = 18. A) USe the normal distribution. B) Do not use the normal distribution. 3) Find the value of E, the margin of error, for c = 0.90, n = 10 and s = 3.2 A) 0.59 B) 1.83 C) 1.85 D) 1.40 4) Classify the two given samples as independent or dependent. Sample 1: Pretraining weights of 19 people Sample 2: Post-training weights of 19 people A) independent B) dependent 5) Construct a 95% condence interval for the population mean, p. Assume the population has a normal distribution. A sample of 25 randomly selected students has a mean test score of 81.5 with a standard deviation of 10.2. A) (87.12, 98.32) B) (56.12, 78.34) C) (66.35, 69.89) D) (77.29, 85.71) 6) The distribution of room and board expenses per year at a four-year college is normally distributed with a mean of $5850 and standard deviation of $1125. Random samples of size 20 are drawn from this population and the mean of each sample is determined. Which of the following mean expenses would be considered unusual? A) $5180 B) $6350 C) $6180 D) none of these 7) Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $39,000 and a standard deviation of $3000. What is the cutoff salary for teachers in the bottom 10%? A) $43,935 B) $35,160 C) $34,065 D) $42,840 1). 2} 4) 5}