4. Matthew collected the following data:Tadpole 1Tadpole 2Tadpole 3Tadpole 4Tadpole 5Mean (cm)Std Dev (cm)t-test probability(p-value)Table 4.1 Effect of Diazinon Exposure on Tadpole LengthTadpole length (cm)0.25 ppb0.5 ppb4.44.64.23.84.34.260.3ΝΑControl4.43.53.84.24.14.00.40.1223.13.43.74.03.33.50.40.0031.0 ppb3.53.12.83.32.63.060.40.0002Based on the data presented in the table above, are any of the treatment groups significantly different from the control group? If so,which groups are different and how do you know they are different?

Answered: Image /qna-images/answer/37d0f642-f57f-4b74-a198-56d419680980.jpg

Answered: 4. Matthew collected the following…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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An experiment was conducted to investigate the effects of the concentrations of sulfuric acid (H₂SO4) and calcium chloride (CaCl₂) on the amount of black mud precipitate in the treatment of alkaline wastewater. There were three levels of each concentration, and two replicates of the experiment were made at each combination of levels. The relevant statistical analysis is provided in the following table. Source DF SS MS F P 2 457.65 228.83 8.845 0.008 H₂SO4 CaCl₂ 2 38783 19391 749.53 0.000 Interaction 4 279.78 69.946 2.704 0.099 Error 9 232.85 25.872 Total 17 39753 a) The appropriate statistical analysis to test would be: a. One-way ANOVA b. Two-way ANOVA C. Three-way ANOVA d. Two-Sample t-test b) Does there appear to be an interaction between concentration of sulfuric acid and calcium chloride at the .05 level? What does this say about the additive model? c) Can the effect of concentration of sulfuric acid on amount of black mud precipitate in the treatment of alkaline wastewater be…
Show Intro/Instructions Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (x) Cost(y) 590 71.1 608 75.72 633 67.97 801 99.09 314 39.26 590 62.1 836 86.24 348 58.32 828 90.52 884 87.56 345 57.05 A student calculates a linear model y = (Please show your answers to two decimal places) Use the model to estimate the cost when number of pages is 788. Cost = $ (Please show your answer to 2 decimal places.) Hint: Textbook Pages Help Get Help: Points possible: 1 License This is attempt 1 of 2. II F8 F7 1) F9 F10 F1 F12 8 9 delete
Was there a statistical difference in blood glucose between groups at baseline? (Complete t-test for baseline blood glucose between control and glucose groups; interpret results to answer question)
Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data is shown below, Number of Pages (xx) Cost(yy) 942 59.1 453 24.65 789 41.45 473 34.65 302 25.1 567 23.35 482 32.1 511 26.55 285 28.25 529 35.45 477 19.85 Click to Copy-and-Paste DataA student calculates a linear modelyy = xx + . (Please show your answers to two decimal places)Use the model above to estimate the cost when the number of pages is 736Cost = $ (Please show your answer to 2 decimal places.)
The following data, drawn from a normal population, are the waiting times (in minutes) of 12randomly selected customers at a travel desk.1.8 2.4 2.7 2.1 1.3 1.7 1.5 1.5 2.3 2.8 2.5 1.9a. Calculate the point estimates of the population variance and the population standard deviation.b. Compute a 90% confidence intervals for the population variance and the population standarddeviation
Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"
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2. Recovering from surgery: A new postsurgical treatment was compared with a stan- dard treatment. Seven subjects received the new treatment, while seven others (the controls) received the standard treatment. The recovery times, in days, are given below. Can you conclude that the mean recovery time for those receiving the new treatment is less than the mean for those receiving the standard treatment? Use the a = 0.05 level. Treatment: Control: H₁: 12 18 (a) List the null and alternate hypetheses. Ho : (c) List the P-value. 13 23 (d) Make the comparison. 15 24 19 30 20 32 (b) List the distribution, the test statistic, the calculator program, and all input and output variables. 21 35 We reject Ho / We do not reject Ho (circle one) (e) State the final conclusion in the wording of the problem. 24 39

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