A psychologist studied the alcohol consumption patterns of people in twoage groups. One group consisted of people aged 21 to 35, and the otherconsisted of people aged 36 to 50. The psychologist interviewed randomand independent samples from each group. She assigned a score from oto 100 to each individual (a score of o meant no alcohol consumption)according to factors such as the frequency and the amount of alcoholconsumed. The results from the study are summarized below.Age 21Age 36to 35to 50n₁ = 23n₂=29x₁=47.8x₂=49.4s=222.01 s=125.44(The first row gives the sample sizes, the second row gives the samplemeans, and the third row gives the sample variances.)Assume that the scores of all people aged 21 to are approximatelynormally distributed. Assume the same for the scores of all people aged36 to 50.Can we conclude, at the 0.05 significance level, that the variance of thescores of all people aged 21 to 35, o, is greater than the variance of thescores of all people aged 36 to 50, ²?Perform a one-tailed test. Then complete the parts below.Carry your intermediate computations to three or more decimal places,and round your answers as specified below. (If necessary, consult a listof formulas.)(a) State the null hypothesis H, and the alternative hypothesis H₁.Ho: OH₁:0(b) Determine the type of test statistic to use.(Choose one) ▼(c) Find the value of the test statistic. (Round to three or more decimal places.)(d) Find the critical value at the 0.05 level of significance. (Round to three or moredecimal places.)(e) Can we conclude that the variance of the scores of all people aged 21 to 35 isgreater than the variance of the scores of all people aged 36 to 50?OYes NoμX님0*0OXS0=0 OSO2O

Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…

Answered: (a) State the null hypothesis H, and…

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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The following estimated regression equation based on 10 observations was presented. ŷ = 23.1170 + 0.5101x, + 0.4920x2 %3D Here, SST = 6,722.125, SSR = 6,224.375, 0.0816, and = 0.0569. %3D zas (a) Compute MSR and MSE. (Round your answers to three decimal places.) MSR = MSE = (b) Compute F and perform the appropriate F test. Use a = 0.05. State the null and alternative hypotheses. Но: В + 0 and B, + 0 H: One or more of the parameters is equal to zero. Ho: B1 > B2 Hg: Bq s Bz Ho: B1 = B2 = 0 : One or more of the parameters is not equal to zero. %D Ho: B1 < B2 Ho: B1 + 0 and ß, = 0 %3D Ha: B1 = 0 and B, # 0 Find the value of the test statistic. (Round your answer to two decimal places.) F = Find the p-value. (Round your answer to three decimal places.) p-value = State your conclusion. Reject Ho. There is sufficient evidence to conclude that the overall model is significant. Do not reject Ho. There is sufficient evidence to conclude that the overall model is significant. Reject Ho. There is…
You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. Ho: μ ≥ 40 Hg: μ < 40 A sample of 36 is used. Identify the p-value and state your conclusion for each of the following sample results. Use a = 0.01. (a) x = 39 and s = 5.1 Find the value of the test statistic. (Round your answer to three decimal places.) -1.18 X Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Reject Ho. There is insufficient evidence to conclude that μ< 40. Do not reject Ho. There is insufficient evidence to conclude that u < 40. Do not reject Ho. There is sufficient evidence to conclude that μ < 40. Reject Ho. There is sufficient evidence to conclude that μ < 40. (b) x = 38 and s = 4.6 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Reject Ho. There is insufficient evidence to…
2 hw
Just need the two answers from the drop down selections
The table below lists the number of games played in a yearly best-of-seven baseball championship series, along with the expected proportions for the number of games played with teams of equal abilities. Use a 0.05 significance level to test the claim that the actual numbers of games fit the distribution indicated by the expected proportions. Games Played Actual contests 4 7 20 22 20 39 4 Expected proportion 16 16 16 16 Determine the null and alternative hypotheses. Ho: Hq: Calculate the test statistic, y2. (Round to three decimal places as needed.) Calculate the P-value. P-value = (Round to four decimal places as needed.) What is the conclusion for this hypothesis test? O A. Fail to reject Ho. There is sufficient evidence to warant rejection of the claim that the actual numbers of games fit the distribution indicated by the expected proportions. B. Fail to reject Ho. There is insufficient evidence to warrant rejection of the claim that the actual numbers of games fit the distribution…
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(a) State the null hypothesis H and the alternative hypothesis H₁. Ho : p= 0 H₁ :p #0 (b) Determine the type of test statistic to use. t Degrees of freedom: 54 (c) Find the value of the test statistic. (Round to three or more decimal places.) - 1.268 (d) Find the two critical values at the 0.10 level of significance. (Round to three or more decimal places.) and (e) Based on the data, can the professor conclude (using the 0.10 level) that there is a significant linear relationship between number of years spent at the university and score on the first midterm? Yes No
Q.9 F
Just Part A and B
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