Question 7 out of 9. Using these data below, what is the t statistic for a single-sample t test (null hypothesis is that μ = 0)? Y 0.20 -0.53 1.03 0.44 0.48 2.43 1.87 0.32
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Question 7 out of 9.
Using these data below, what is the t statistic for a single-sample t test (null hypothesis is that μ = 0)?
Y
0.20
-0.53
1.03
0.44
0.48
2.43
1.87
0.32
Step by step
Solved in 2 steps with 2 images
- Please show work!! Answer this question correctly. Thanks.12Solve the given problem using the stepwise method for testing hypotheses (correlated samples). Use t-test for correlated sample to test if there is no difference between oral contraceptive use and blood pressure (before and after). Use .01 alpha level of significance ( two-tailed). BP Before OC BP After OC 115 128 112 115 107 106 119 128 115 122 138 145 126 132 105 109 104 102 115 117
- You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01. Ho:μ1=μ2Ho:μ1=μ2 Ha:μ1≠μ2Ha:μ1≠μ2You obtain the following two samples of data. Sample #1 Sample #2 65.8 77.7 105.1 78.6 89.2 69.1 96.7 91.3 105.9 87.5 70.5 93.9 83.4 88.3 79.5 66.7 83.4 91.7 106.7 73 75.7 98.7 76.7 80 53.2 92.1 93 78.2 72.4 79.1 82.1 74.1 78.2 85.5 85.9 99.3 84.2 104.3 88.3 107.6 63.8 99.8 97.7 86.3 74.9 72.7 77.5 93.9 76.1 77.1 81.9 74.1 73.6 78.7 81.9 78.9 81.1 88 85.8 75.3 74.3 77.5 69.1 75.5 72.9 80.1 84.3 73.1 67.3 72.2 76.1 67.8 74.9 67.3 74.7 70.1 65.4 76.9 83.8 79.7 72.9 81.7 74.1 68.2 65.4 80.9 69.4 79.5 96 77.5 77.1 75.9 68.7 What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? For this calculation, use the degrees of freedom reported from the technology you are using. (Report answer accurate to four…Which of the following is a Null hypothesis for a paired-samples t-test? μd = 0 μd = X μ1 ≠ μ2 μ1 = μ2The following data were collected from a repeated-measures study. Perform an ANOVA. Use a .05 alpha level. Treatment A B _____________ G = 36 2 6 2 6 ΣX2 = 192 4 4 4 8 ______________ T = 12 T = 24 SS = 4 SS = 8 1) State the null hypothesis. 2) Calculate necessary statistics (USE AN ANOVA even though K=2, and a = .05). 3) Make a decision about your null hypothesis and explain what that decision means. 4) Make a conclusion about your IV and DV that includes an APA format summary of your statistical analysis
- You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. H0: ?d ≤ 0 Ha: ?d > 0 (a) The following data are from matched samples taken from two populations. Compute the difference value for each element. (Use Population 1 − Population 2.) Element Population Difference 1 2 1 21 19 2 28 28 3 18 17 4 20 18 5 26 26 (b) Compute d. (c) Compute the standard deviation sd. (d) Conduct a hypothesis test using ? = 0.05. Calculate the test statistic. (Round your answer to three decimal places.) Calculate the p-value. (Round your answer to four decimal places.) p-value = What is your conclusion? Reject H0. There is insufficient evidence to conclude that ?d > 0. Reject H0. There is sufficient evidence to conclude that ?d > 0. Do not Reject H0. There is sufficient evidence to conclude that ?d > 0. Do not reject H0. There is insufficient evidence to conclude that ?d >…Sun Oct 22 webassign.net You may need to use the appropriate technology to answer this question. The following data are from a completely randomized design. In the following calculations, use a = 0.05. xj Treatment Treatment 1 2 63 46 53 46 52 64.67 о но H1 #Hz #Из H₂H₁ = H₂ = 3 83 = 71 87 71 78 68.00 Treatment 3 70 54 61 51 59 (a) Use analysis of variance to test for a significant difference among the means of the three treatments. State the null and alternative hypotheses. H₁ H₁ = H₂ = 13 H: Not all the population means are equal. 71.33 O Ho: Not all the population means are equal. на: H1 = H2 = Из O Ho: At least two of the population means are equal. H: At least two of the population means are different. Ho: H₁ H₂ H3 на: М1 #M2 #Из Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value = State your conclusion. O Reject Ho. There is not sufficient evidence to conclude that the means of…Refer to the below table. Using an alpha = 0.05, test the claim that IQ scores are the same for children in three different blood lead level groups: low lead level, medium lead level, and high lead level). One-Way Analysis of Variance Summary Table for IQ Measurements for Children among Three Blood Lead Level Groups: Low Lead Level, Medium Lead Level, and High Lead Level. Source df SS MS F p Between-group (treatment) 2 469.1827 2677.864 2.30 0.104 Within-group (error) 118 203.6918 11745.05 Total 120
- Question 5 The following questions are based on hypothesis testing. (a) iid Let, (8.49, 10.39, 9.76, 12.66, 10.35, 10.96, 8.25, 12.14, 7.52, 8.92) Ν (μ, σ) For the same dataset assume that the value of o? is also unknown. Again, at a = 0.01 or 1% significance level, test Họ : µ = 9 against H1 : µ # 9. Again calculate the test statistic, p-value and then comment on the null hypothesis.What type of test it is?
