Find the critical z-value for the following hypothesis test. : μ-5 Hị : µ < 5 with a level of significance a = 0.09. Give your answer to 2 decimal places. (Hint: What is the sign of the critical value?)
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- Thank you for the help!Answer the following to summarize the test of the hypothesis that there is no dependence between the two variables color vision of participant and trial outcome. For your test, use the 0.05 level of significance. a. Find the value of the test statistic. (Round to two or more decimal places.) b. Find the critical value for a test at the 0.05 level of significance. (Round to two or more decimal places.) c. Can we reject the hypothesis that there is no dependence between the variables color vision of participant and trial outcome? Use the 0.05 level of significance.J 2 Q7. You are a member of a research team interested in looking at the association between numberof years of education and diastolic blood pressure (DBP).A. State your research questions B. State your null and alternative hypotheses.C. What is the most appropriate statistic you would recommend for data analysis?
- Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. For a sample of 14 stations last Tuesday, the correlation was 0.79. The following hypotheses are given.H0: ρ ≤ 0H1: ρ > 0a. State the decision rule for 0.050 significance level. (Round your answer to 3 decimal places.) reject H0 if t >The recommended dietary allowance (RDA) of iron for adult females is 18 milligrams (mg) per day. The given iron intakes (mg) were obtained for 45 random adult females. At the 1% significance level, do the data suggest that adult females are, on average, getting less than the RDA of 18 mg of iron? Assume that the population standard deviation is 4.4 mg. Preliminary data analyses indicate that applying the z-test is reasonable. (Note: x = 14.71 mg.) Click here to view the iron intake data. Click here to view Page 1 of the table of areas under the standard normal curve. Click here to view Page 2 of the table of areas under the standard normal curve.The following table shows the hours studied and corresponding test grade earned by students on a recent test. Calculate the correlation coefficient, r, and determine whether r is statistically significant at the 0.01 level of significance. Round your answer to the nearest thousandth. Critical Values of the Pearson Correlation Coefficient Hours Studied and Test Grades Hours Studied 0 0.5 2 2.25 3.25 3.5 3.75 3.75 4 5 1 1 81 Test Grade 72 64 68 79 85 82 72 99 87 84 97
- Round to two decimal places.Thank you for your help.his K You are testing the null hypothesis that there is no linear relationship between two variables, X and Y. From your sample of n = 18, you determine that b₁ = 4.3 and Sb₁ = 1.4. a. What is the value of tSTAT? b. At the a=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? d. Construct a 95% confidence interval estimate of the population slope, B₁. e to search a. What are the hypotheses to test? A. Ho: B₁ = 0 H₁: B₁ #0 © C. Ho: P₁20 H₁: B₁ O OD. Ho: B₁ #0 H₁: B₁ = 0 fg 144 f10 84°F ^ @ fil *** 6464 Clear all h12 mportant Information ce Identification Cards. Two cards have been cle insured. Please destroy your old cards ecome effective. A law enforcement officer South Carolina law. The Insurance rovide this proof. that you have liability insurance meeting ons on the ID Card, only the are listed. For a full list of ease reference the Dri (page 7). omptly of any portant polic
- What is the F value? Is the null hypothesis rejected or not rejected? Draw Conclusion.The null hypothesis: Н = 0 The alternative hypothesis: H 1 :B, 1 Degrees of freedom: The type of test statistic: 27 The value of the test statistic: (Round to at least three decimal places.) The two critical values at the 0.10 level of significance: D and O (Round to at least three decimal places.) Based on the information, can we conclude (using the 0.10 level) that there is a significant linear relationship between mileage and used selling price for two-year-old Cadets? Yes NoGiven the following information: n₁ = 31, s² = 5.266, n₂ = 21, s = = 7.968, Ha: 0 < o2, a = 0.05 Copy Data Step 1 of 2: Determine the critical value(s) of the test statistic. If the test is two-tailed, separate the values with a comma. Round your answer(s) to four decimal places.