Given the IVP y - 4y ¹ + 3y=1+t, y (0) = 1, y¹ (0) = 0.
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- High A RANDOM <- High A[sample(nrow(High_A),5), Researchers aim to find a topical solution for skin cancer in its early stages to avoid surgery. They believe Curcumin is effective, however, it must be solubilised in a solution as a carrier to be applied on skin. Solvability is one important factor because a solution with higher solvability contains a higher amount of curcumin. For this reason, an experiment was designed by researchers to examine and compare the solvability of 5 popular solutions. Prior to starting the experiment, a company asked the researchers to use and examine their new additive solution "X" by adding the additive to the solutions. The company claims that the additive significantly increases the solvability of the solutions. The researchers test the solvability of their 5 solutions first and then redo all the steps again by adding "X" to their solutions. There are 5 replicates for each solution in each test. The results are displayed in the table below: Water 1.1…Does the label “GLUTEN FREE” guarantee that a food hasabsolutely NO gluten? FDA guidelines state a food must contain less than 20 partsper million of gluten to qualify as gluten free. (So some foods containing somegluten may legally qualify as gluten free.) A brand of crackers claiming to begluten free was tested ; for a sample of 7 batches of these crackers, the gluten levelsin parts per million were: 9 20 14 22 14 12 15Perform a hypothesis test to determine if the average gluten content is less than 20parts per million so that the manufacturer can support its claim that the crackerscan be represented as gluten free. Use a 3% level of significance.Over the past 10 years, contestants at the county fair hotdog eating contest averaged 125 hotdogs within the 1 minute time frame. (How did they do this?I have no idea). Anyway, due to Covid19 restrictions, there were only 15 contestants who ate an average of 122 hotdogs. s=6.5 What is the hypothesis for testing if there is a difference? но: и-125, На: д3119 HO: u=119, Ha: H#119 но: и119
- Chapter 9: Hypothesis X Chapter 9 Test Chapter 9: Hypothesis X Chapter 9: Hypothesis : XOL 8 /24330/assignments/654472?module_item_id=1905251 Translate A school reports that 83% of its graduates get jobs within one year. You take a random sample of 51 graduates, of whom 38 got a job within one year. Is this enough evidence to show that a significantly smaller percent of graduates get jobs than advertised by the school? (Use a=0.01) 1. For this study, we should use Select an answWer 2. The null and alternative hypotheses would be: Ho:? Select an answer v (please enter a decimal) H: ? Select an answer v (Please enter a decimal) 3. The test statistic (please show your answer to 3 decimal places.) %3D 4. The p-value = (Please show your answer to 4 decimal places.) 5. The p-value is ? v a 6. Based on this, we should Select an answer v the null hypothesis. 7. As such, the final conclusion is that O The sample data suggest that the population proportion is not significantly smaller than 83%…5/25/22, 12:45 PM Statistics - MA3113 B-IC-Edgenuity.com A shipping company claims that 95% of packages are delivered on time. A student wants to conduct a simulation to estimate the number of packages that would need to be randomly selected to find a package that was not delivered on time. The student assigns the digits to the outcomes. 00-04 = package not delivered on time 05-99 = package delivered on time Here is a portion of a random number table. Table of Random Digits 1 31640 43402 96003 10498 01532 73869 2 67940 5019 98252 43838 45644 3 21805 26727 73239 53929 42564 17080 Beginning at line 1, and starting each new trial right after the previous trial, carry out 5 trials of this simulation. Based on the 5 trials, what is the average number of packages that need to be selected in order to find a package that was not delivered on time? O 2.2 O 2.25 O2.33 O 2.5 https://r03.core.Jeam.edgenuity.com/player/O File| /home/chronos/u-33ca627c45bc92f429be6ef6da849db9fb32a20e/MyFiles/Downloads/SPA3eChapter_1Test.pdf 4 / 6 12. In a recent survey, 200 randomly-selected high school students were asked whether they would prefer to win an Olympic gold medal, an Oscar, or a Nobel Prize. The results of their response and the sex of respondent are summarized in the table below. Academy Award 10 Olympic Medal Nobel Prize Female 41 43 94 Male 61 40 106 102 15 83 200 Draw a side-by-side bar chart to display the distribution of gender for each award the students would prefer to win for the 200 students. +
- 11/15/2020 MyOpenMath Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water of a water source. Zinc Zinc concentration Location concentration in bottom in surface water water 1 .430 .415 2 .266 .238 .567 .390 4 .531 .410 .707 .605 6. .716 .609 7 .651 .632 8 .589 .523 .469 .411 10 .723 .612 Do the data support that the zinc concentration is less on the surface than the bottom of the water source, at the a = 0.1 level of significance? Note: A normal probability plot of difference in zinc concentration between the bottom and surface of water indicates the population could be normal and a boxplot indicated no outliers. a. Express the null and alternative hypotheses in symbolic form for this claim. Assume Hj = µ1 - l2, where u1 is the population mean zinc concentration in the bottom of water and lz is the mean zinc concentration in the surface…Low Carbohydrate Low Fat Mediterranean TOTAL Mean (sd) 95% CI (LL,UL) Mean (sd) 95% CI (LL,UL) Mean (sd) 95% CI (LL,UL) Mean (sd) 95% CI (LL,UL) Age 39.58 (10.257) (35.54, 43.29) 39.27 (9.594) (35.58, 42.54) 39.69 (10.403) (35.88, 43.65) 39.51 (9.961) (37.17, 41.67) Height 168.19 (7.255) (165.62, 171.04) 172.88 (11.347) (168.73, 177.31) 166.77 (9.872) (162.96, 170.08) 169.28 (9.872) (167.19, 171.47) Weight Baseline 76.119 (9.8230) (72.554, 79.769) 82.577 (18.8938) (75.500, 89.961) 77.346 (8.6345) (74.160, 80.769) 78.681 (13.3932) (76.086, 81.757) 12 weeks 73.192 (10.2942) (69.401, 77.088) 79.435 (18.8373) (72.178, 86.786) 71.881 (9.2598) (68.861, 75.486) 74.836 (13.7279) (72.172, 78.013) Body Mass Index Baseline 26.974 (3.5953) (27.354, 28.301) 27.354 (3.8568) (25.860, 28.798) 27.897 (2.9985) (26.864, 29.092)…3
- A clinician at the NSU Hospitals and Clinics used a D-dimer assay to screen patients in his clinics for diagnosis of DVT (Deep Vein Thrombosis). The clinician was able to use Compression Ultrasonography (the gold standard) to confirm the result of the D-dimer assay. The result is presented in table below. i.What is the sensitivity of the D-dimer Assay? ii. What is the specificity of the D-dimer Assay? iii. Compute PV+ and interpret your result. iv. Compute PV- and interpret your result. v. Compute the prevalence of DVTTwo students were independently proof-reading lecture notes. One found α typos, the other found β typos. Of those, γ typos were found by both of them. How would you estimate the total number of typos in the note?sto ave 12.72 (M4) The authors of the paper "Serum Zinc Levels of Cord Blood: Relation to Birth Weight and Gestational Period" (Journal of Trace Elements in Medicine and Biology [2015]: 180-183) car- ried out a study of zinc levels of low-birth-weight babies and normal-birth-weight babies. For a sample of 50 low- birth-weight babies, the sample mean zinc level was 17.00 and the standard error was 0.43. For a sample of 73 normal-birth-weight babies, the sample mean zinc level was 18.16 and the standard error was 0.32. Explain why the two standard errors are not the same.