A student who scored 0 on the midterm would be predicted to score 50 on the final exam. Choose from 500 different sets of final exam elementary statistics flashcards on Quizlet. Created by. Jennlovestennis. STUDY. Learn. Assume that a random sample of 24 students is selected and the test score of … A final exam in Math 160 has a mean of 73 with standard deviation 9.8. mean = 11.967, SD = 1.886, =.4167. (b) Determine the p-value for this test. Flashcards. Show all work; writing the correct test statistic, without supporting work, will receive no credit. B. The probability that the mean typing rate of freshmen equals the mean typing rate of seniors is .011. a) Only I is true. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The probability that the true mean difference for freshmen-seniors lies between -0.9 and -11.2 is .95. Write. Match. not always, the sample size will have an influences in the final estimating of the population parameter. If not, you will receive a significant grade reduction. PLAY. Start studying Statistics Final Exam. All cell phones, PDAs, iPods, laptops, etc, should be turned off and put out of sight. An interpretation of the slope is: A. So for two-sided test, the p- value is between 0.05 and 0.1. A significance test for comparing two means gave t=−1.97 with 10 degrees of freedom. 31. sample statistic – ME population parameter sample statistics + ME. a number that describes the population. (a) True (b) False 13. Statistics Final Exam. (1 pt) From the empirical rule we can deduce that, for any distribution, 95% of the observations fall between the mean plus or minus two standard … Past data has shown that the regression line relating the final exam score and the midterm exam score for students who take statistics from a certain professor is: final exam = 50 + (0.5)(midterm). Terms in this set (64) parameter. (c) Is there sufficient evidence to justify the rejection of at the level? Show all work; writing the correct P-value, without supporting work, will receive no credit. statistic. Business Statistics Final Exam Solutions December 17, 2008 3 12. 7.78 8.62 Test. II. 30. answers are the formulas for the standard deviation of the sampling distribution. Spell. Gravity. Learn final exam elementary statistics with free interactive flashcards. You are allowed to use a calculator and a two-sided sheet of notes for this exam. III. (a) Determine the test statistic. 32. a. (1 pt) The Central Limit Theorem says that for large sample sizes the sample mean has an approximately normal distribution. Can you reject the null hypothesis that the μ’s are equal versus the two-sided alternative at the 5% significance level? a. There is a 0.01 probability that the population mean is smaller than 529. b. c) Only I & II … b) Only III is true. 7. Answer: Probability for t = -1.97 for df = 10 is between 0.025 and 0.05. In statistical practice, this value is not known because we cannot examine the entire population. The probability of observing a sample mean smaller than 529 when the population mean is 532 is 0.01. c. There is a 0.01 probability that the population mean is smaller than 532. d. If the significance level is 0.05, you will accept the null hypothesis. Final Exam December 19, 2010 Directions: Before you leave, you must turn in both this exam sheet and any statistical tables. a.
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