R COMMANDER OUTPUT data: oxygen_consumption by training. Kruskal-Wallis chi-squared Kruskal-Wallis rank sum test = 43.497, df = 2, p-value = 3.587e-10
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- Fit by least square the following data set x| 0.0| 1.0|2.0| 3.0| yl -1.9|1.0| 4.1|4.3| with the model: y = ao + a1 sin(x) + a2 cos(x) Use at least 5 digits in your answers Provide in the box below the answer for the parameter ao Answer: Model parameter a1 (use at least 5 digits) Answer:Using the z-table, determine the z-score that has 15% of the area to the right of itResearchers measured the percent call: Im(formula - Symptoms - wear_mask, data - some_states) of people in 25 states who 'knew someone with COVID symptoms' (ŷ) Residuals: Min 10 Median 30 мах -7.9167 -2.3306 -0.2469 2. 5020 7.3345 coefficients: and regressed this on the (Intercept) 111.0981 wear_mask Estimate std. Error t value Pr(>|t|) 10. 5423 10. 538 2.82e-10 *** -8. 375 1.94 e-08 *** -1.0419 0.1244 percent of the population frequently wearing a mask in public (x). signif. codes: 0 ***** 0.001 **** 0.01 * 0.05 '.' 0.1''1 Residual standard error: 3. 859 on 23 degrees of freedom Multiple R-squared: 0.7531, F-statistic: 70.15 on 1 and 23 DF, p-value: 1.936e-08 Adjusted R-squared: 0.7423 Which of the following represents the correct regression equation? 1) ŷ = -1.04 + 111x 2) x = 111.10 – 1.04ý 3) ŷ = 111.10 + 10.54x %3D 4) ŷ = 111.10 – 1.04x
- A type of casting iron has Hall-Petch parameters: σ0 = 36.3 MPa and K = 6.5 MPa ∙ mm^−0.5. For a given sample, the grain size distribution is shown in the diagram below. Each bar represents the percentage of grains in particular size. First, estimate the average grain size based on concept of “weighted mean” (in case you do not know, search for this term). Then, apply Hall-Petch Equation to calculate the yield stress. (Note: 1 μm = 0.001 mm)Please do not give solution in image format thanku What is the relationship between alpha value .05 and the p value of significance < .05?A large automobile insurance company selected samples of single and married male policyholders and recorded the number who made an insurance claim over the preceding three-year period. Single Policyholders Married Policyholders n1=550 n2=1,000 Number making claims = 110 Number making claims = 150 a. Use a=0.05 Test to determine whether the claim rates differ between single and married male policyholders. z-value (to 2 decimals) p-value (to 4 decimals) b. Provide a 95% confidence interval (to 4 decimals) for the difference between the proportions for the two populations. Enter negative answer as negative number. ( , )
- 8:58 0: 2.10 MB/S ul 86% 03_Seatwork_3.. STI GE1707 Name: Section: Score: Date: Direction: Use Polya's four-step problem-solving strategy to solve the following problems. (8 items x 2 points) 1. If six (6) people greet each other at a meeting by shaking hands with one another, how many handshakes will take place? Understand the Problem: Devise a Plan: Carry Out the Plan: Revise the Solution: 2. The product of the ages, in years, of three (3) teenagers is 4590. None of them have the same age. What are the ages of the teenagers? Understand the Problem: Devise a Plan: Carry Out the Plan: Revise the Solution: 03 Seatwork 3 *Property of STI Page 1 of 1Exam scores have a normal distribution with u= 70 and o= 10. Bob's exam score is 80. What is Bob's z-score?A special bumper was installed on selected vehicles in a large fleet. The dollar cost of body repairs was recorded for all vehicles that were involved in accidents over a 1-year period. Those with the special bumper are the test group and the other vehicles are the control group, shown below. Each "repair incident" is defined as an invoice (which might include more than one separate type of damage). Statistic Test Group Control Group Mean Damage x¯1x¯1 = $ 1,101 x¯2x¯2 = $ 1,766 Sample Standard Deviation s1 = $ 696 s2 = $ 838 Repair Incidents n1 = 12 n2 = 9 (a) Construct a 90 percent confidence interval for the true difference of the means assuming equal variances. (Round answers to 3 decimal places. Negative values should be indicated by a minus sign.) (b) Repeat part (a), using the assumption of unequal variances with Welch's formula for d.f. (Round answers to 2 decimal places. Negative values should be indicated by a minus sign.) (d) Construct separate…
- please help me dtermine the test statistic AND P-value?Strength of concrete: The compressive strength, in kilopascals, was measured for concrete blocks from five different batches of concrete, both three and six days after pouring. The data are as follows. Can you conclude that the mean strength after three days is greater than the mean strength after six days? Let μ₁ represent the mean strength after three days and μμ₁ −μ₂. Use the a= 0.05 level and the critical value method with the table. Block 1 2 3 4 5 After 3 days 1386 1382 1349 1384 1341 After 6 days 1344 1343 1307 1325 1301 Send data to Excel Part 1 of 5 (a) State the null and alternate hypotheses. Ho|ua = 0 H₁ H₂ > 0 This hypothesis test is a right-tailed ▼test. Part: 1 / 5 Part 2 of 5 Find the critical value. Round the answer to three decimal places. If there is more than one critical value, separate them with commas. The critical value(s): 0.0.... XMyocardial blood flow (ml/min/g) was measured for a group of cyclists under normal oxygen levels after 5 minutes of bicycle exercise. The following is some R code and output using the "t.test" function. > t.test (normoxia, mu=3, alternative="less") One Sample t-test data: normoxia t = -2.5751, df = 9, p-value = 0.01497 alternative hypothesis: true mean is less than 3 95 percent confidence interval: -Inf 2.85968 sample estimates: mean of x 2.513 At the 0.05 significance level, identify the correct interpretation for the conclusion in the context of the setting for the hypothesis test done in the t.test output above (step 6 of a hypothesis test). O a. There is significant evidence to conclude Myocardial blood flow tends to be greater than 3 for cyclists after 5 minutes of bicycle exercise. Ob. There is significant evidence to conclude Myocardial blood flow tends to be less than 3 for cyclists after 5 minutes of bicycle exercise. Oc. There is significant evidence to conclude Myocardial…