Homework Answers
![1 Holl = 51 2 X-4 Vs Ho: M #51 54-5) 9.34 pvalue = 0.0193] - 10.0193](http://img.homeworklib.com/questions/210b2690-bf6b-11ea-8377-9104b0e7af68.png?x-oss-process=image/resize,w_560)
pvalur
corresponding to z=2.34 is 0.0193
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VIP uide, Louie) Are you smarter than a second-grader? A random sample of 61 second-graders in...
Are you smarter than a second-grader? A random sample of 63 second-graders in a certain school...
Are you smarter than a second-grader? A random sample of 63 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x = 50. Assume the standard deviation of test scores is o=11. The nationwide average score on this test is 52. The school superintendent wants to know whether the second-graders in her school district have different math skills than the nationwide average. Use the = 0.10 level of significance and the...
what is the critical value. Are you smarter than a second-grader? A random sample of 62...
what is the critical value.
Are you smarter than a second-grader? A random sample of 62 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x = 56. Assume the standard deviation of test scores is o= 16. The nationwide average score on this test is 52. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Use the a=0.05...
Question 12 of 14 (1 point) Attempt 1 of Unlimited View question in a popup 8.2 Section Exercise 52 (p-value Are yo...
Question 12 of 14 (1 point) Attempt 1 of Unlimited View question in a popup 8.2 Section Exercise 52 (p-value Are you smarter than a second-grader? A random sample of 51 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x = 44. Assume the standard deviation of test scores is o=15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in...
this is part two of it Question 12 (0.75 points) A random sample of 64 second-graders...
this is part two of it
Question 12 (0.75 points) A random sample of 64 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.05. Assume the standard deviation for the population of test scores is 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Perform the hypothesis test...
A random sample of 64 second-graders in a certain school district are given a standardized mathematics...
A random sample of 64 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.57. Assume the standard deviation for the population of test scores is 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Perform the hypothesis test and compute the P value. Write down your P.value. You...
Question 12 (0.75 points) A random sample of 64 second-graders in a certain school district are...
Question 12 (0.75 points) A random sample of 64 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.81 . Assume the standard deviation for the population of test scores is 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Perform the hypothesis test and compute the P-value. Write...
Question 12 (0.75 points) A random sample of 64 seccond-graders in a certain school district are...
Question 12 (0.75 points) A random sample of 64 seccond-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.03. Assume the standard deviation for the population of test scores is 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Perform the hypothesis test and compute the P-value. Write down...
A random sample of 60 second graders in a certain school district are given a standardized...
A random sample of 60 second graders in a certain school district are given a standardized math skills test. The sample mean score is 52. Assume that the standard deviation of test scores is σ = 15. The nationwide average is 50. The School superintendent wants to know whether the second graders in her school district have greater math skills than the nationwide average. a) Write the hypothesis test. b) What kind of test? c) Find the standard deviation in...
Question 13 (0.75 points) Saved Recall the previous question where the school superintendent wanted to know w...
Question 13 (0.75 points) Saved Recall the previous question where the school superintendent wanted to know whether second-graders in her school district have greater math skills than the nationwide average. Based on your P-value, what is the conclusion if we test at the 0.05 level of significance? There is evidence to conclude that the second-graders in her district do not have greater math skills. There is evidence to conclude that the second-graders in her district have greater math skills. This...
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean = 5 H1: mean < 5...
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean = 5 H1: mean < 5 A test is performed with a sample of size 25. The sample mean was 4.68 and the population standard deviation is 1.2. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer Question 5 (0.5 points) Consider the...
Are you smarter than a second-grader? A random sample of 63 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x = 50. Assume the standard deviation of test scores is o=11. The nationwide average score on this test is 52. The school superintendent wants to know whether the second-graders in her school district have different math skills than the nationwide average. Use the = 0.10 level of significance and the...
what is the critical value.
Are you smarter than a second-grader? A random sample of 62 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x = 56. Assume the standard deviation of test scores is o= 16. The nationwide average score on this test is 52. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Use the a=0.05...
Question 12 of 14 (1 point) Attempt 1 of Unlimited View question in a popup 8.2 Section Exercise 52 (p-value Are you smarter than a second-grader? A random sample of 51 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is x = 44. Assume the standard deviation of test scores is o=15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in...
this is part two of it
Question 12 (0.75 points) A random sample of 64 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.05. Assume the standard deviation for the population of test scores is 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Perform the hypothesis test...
A random sample of 64 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.57. Assume the standard deviation for the population of test scores is 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Perform the hypothesis test and compute the P value. Write down your P.value. You...
Question 12 (0.75 points) A random sample of 64 second-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.81 . Assume the standard deviation for the population of test scores is 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Perform the hypothesis test and compute the P-value. Write...
Question 12 (0.75 points) A random sample of 64 seccond-graders in a certain school district are given a standardized mathematics skills test. The sample mean score is 51.03. Assume the standard deviation for the population of test scores is 15. The nationwide average score on this test is 50. The school superintendent wants to know whether the second-graders in her school district have greater math skills than the nationwide average. Perform the hypothesis test and compute the P-value. Write down...
Question 13 (0.75 points) Saved Recall the previous question where the school superintendent wanted to know whether second-graders in her school district have greater math skills than the nationwide average. Based on your P-value, what is the conclusion if we test at the 0.05 level of significance? There is evidence to conclude that the second-graders in her district do not have greater math skills. There is evidence to conclude that the second-graders in her district have greater math skills. This...
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean = 5 H1: mean < 5 A test is performed with a sample of size 25. The sample mean was 4.68 and the population standard deviation is 1.2. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer Question 5 (0.5 points) Consider the...
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