FDetermine (a) the x test statistic, (b) the degrees of freedom, (c) the critical value using a = 0.05, and (d) test the hypothesis at the a= 0.05 level of significance.1Ho PA PB PC PD=4H₁: At least one of the proportions is different from the others.(a) The test statistic is 0.24.(Type an exact answer.)(b) There are 3 degrees of freedom.(c) The critical value is 7.815.(Round to three decimal places as needed.)(d) Should the null hypothesis be rejected?OA. No because x is less than or equal to X0.05B. No because xis greater than 0.05-OC. Yes because x is less than or equal to X0.05OD. Yes because x is greater than X0.05View an example Get more help.HOL4IOlOutcomeA BC24 24 25Expected 25 25 25ObservedClear allDoDo[Final check2512:12 PM12/19/2022DO2725

From the given information we have Test statistic (χ20) = 0.24 Degree of freedom (df) = 3 Critical…

Answered: ← Determine (a) the x² test statistic,…

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter1: Functions

Section1.2: The Least Square Line

Problem 4E

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(11.)Perform the test of hypotheses indicated, using the data from independent samples given. Use the p value approach. (The p-value can be only approximated.) a. Test Ho : H - Hz = 50 vs. Ha : µ, - u, > 50 @a = 0.01: = lu n1 = 30, x1 = 681 s1 = 8 n2 = 27, T2 = 625, 82 = 8 %3D b. Test Ho : 41 – Hz = 35 vs. Ha : Hi – Hy # 35@a = 0.10: n1 = 36, T1 = 325, 81 = 11 n2 = 29, T2 = 286. s2 = 7
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho: p = 0.8 versus H₁: p > 0.8 n = 125; x = 105; α = 0.1 Click here to view page 1 of the table. Click here to view page 2 of the table. Calculate the test statistic, Zo. Zo (Round to two decimal places as needed.) Identify the P-value. = P-value = (Round to three decimal places as needed.) Choose the correct result of the hypothesis test for the P-value approach below. A. Do not reject the null hypothesis, because the P-value is less than a. B. Do not reject the null hypothesis, because the P-value is greater than α. C. Reject the null hypothesis, because the P-value is greater than a. O D. Reject the null hypothesis, because the P-value is less than α.
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho: p=0.8 versus H₁: p > 0.8 n = 250; x = 220; α = 0.05 Click here to view page 1 of the table. Click here to view page 2 of the table. Calculate the test statistic, Zo. Zo = 3.16 (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.)
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.2 versus H1: p>0.2 n=250; x=55; α=0.01 Click here to view page 1 of the table. LOADING... Click here to view page 2 of the table. LOADING... Calculate the test statistic, z0. z0=nothing (Round to two decimal places as needed.)
Claim: μ=40; α=0.04; σ=3.88. Sample statistics: x=38.2, n=72 the null and alternative hypotheses: H0: μ=40 Ha: μ≠40 calculate the standardized test statistic. The standardized test statistic is enter your response here. (Round to two decimal places as needed.)
Which of the following values results from the use of a statistical test? 1. The critical value 2. The obtained value 3. Type I error 4. Type II error
Consider the following data on price ($) and the overall score for six stereo headphones tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest). Brand Price ($) Score 180 74 В 150 69 95 63 70 56 70 40 F 35 28 (a) The estimated regression equation for this data is ý = 25.870 + 0.291x, where x = price ($) and y = overall score. Does the t test indicate a significant relationship between price and the overall score? Use a = 0.05. State the null and alternative hypotheses. O Ho: Bo * 0 H: Bo = 0 O Ho: B1 20 Hoi Bq < 0 O Ho: Bo = 0 Hg: Bo 0 O Ho: B1* 0 H: B, = 0 O Ho: B, = 0 H: B1 = 0 Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = What is your conclusion? O Do not reject H. We conclude that the relationship between price ($) and overall score is significant. O Do not reject…
Number of eggs and price per dozen are shown. No. of eggs (million) Price per dozen ($) 957 1332 1163 1865 119 273 0.770 0.617 0.652 1.420 0.697 Test the significance of the correlation coefficient at a=0.05 1.080 Step 1: State the hypotheses. Step 2: Find the critical values. Step 3. Compute the test value. Step Ma the decision. Step 5. Summarize the results.
wht is the lower critical value nd high You are testing the null hypothesis that there is no linear relationship between two variables, X and Y. From your sample of n=11, you determine that r=0.75. a. What is the value of tSTAT? b. At the α=0.05 level of significance, what are the critical values? c. Based on your answers to (a) and (b), what statistical decision should you make? a. What are the hypotheses to test? A. H0: ρ=0 H1: ρ≠0 Your answer is correct. B. H0: ρ≤0 H1: ρ>0 C. H0: ρ≠0 H1: ρ=0 D. H0: ρ≥0 H1: ρ<0 tSTAT=3.40173.4017 (Round to four decimal places as needed.) b. The lower critical value is enter your response here. (Round to four decimal places as needed.)
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.7 versus H1: p>0.7 n=200; x=150; α=0.05 Click here to view page 1 of the table. LOADING... Click here to view page 2 of the table. LOADING... Calculate the test statistic, z0. z0=nothing (Round to two decimal places as needed.) Identify the P-value. P-value=nothing (Round to three decimal places as needed.) Choose the correct result of the hypothesis test for the P-value approach below. A. Do not reject the null hypothesis, because the P-value is less than α. B. Do not reject the null hypothesis, because the P-value is greater than α. C. Reject the null hypothesis, because the P-value is greater than α. D. Reject the null hypothesis, because the P-value is less than α.
If I increased a in my statistical test for parameter 0, which of the following would be true? (select all that apply) A. Type I error increases B. Type II error increases C. Power increases D. Var(0) decreases Which of the following increases the power of a statistical test? (select all that apply) A. raising the sample size B. lowering a C. the value of the true parameter being closer to the null D. decreasing test sensitivity
Consider the data. x; 2 69 13 Y;| 9 20 10 25 22 (a) What is the value of the standard error of the estimate? (Round your answer to three decimal places.) (b) Test for a significant relationship by using the t test. Use a = 0.05. State the null and alternative hypotheses. Ho: Bq # 0 Ha: B1 = 0 Ho: Bo + 0 Hai Po = 0 Ho: Po = 0 Ho: Bo Ha: Po Ho: B1 2 0 Ha: B1 < 0 O Ho: B1 = 0 H: B, + 0 a 1 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. We conclude that the relationship between x and y is significant. Reject Ho. We cannot conclude that the relationship between x and y is significant. Do not reject Ho. We cannot conclude that the relationship between x and y is significant. Do not reject Ho: We conclude that the relationship between x and y is significant. 20 O O O

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