Given that ,
n= 30
df = 30 - 2 = 28
critical value =
The 95% CI is :
(-0.4027 - 2.048 * 0.2275 , -0.4027 + 2.048 * 0.2275)
(-0.869 , 0.063
-0.869 to 0.063
Find a 95% confidence interval for the slope of the model below with n = 30....
Question 7 Find a 95% confidence interval for the slope of the model below with n 30. Coefficients: Estimate Std.Error t value Pr(>It) (Intercept 7.535 1.208 6.24 0.000 0.4633 0.2618 -1.77 0.087 Dose Round your answers to three decimal places. to
Question 2 View Policies Current Attempt in Progress Use the computer output to estimate the interceptſ, and the slope 31. Coefficients: Estimate (Intercept) 7.801 Dose -0.289 Std.Error tvalue 1.250 6.24 0.1633 -1.77 Pr(>Itſ) 0.000 0.087 Intercept Bo : i Slope ßı : i
Chapter 9, Section 1, Exercise 008 Computer output for fitting a simple linear model is given below. State the value of the sample slope for the given model. In testing if the slope in the population is different from zero, identify the p-value and use it (and a 5% significance level) to make a clear conclusion about the effectiveness of the model. Coefficients: Estimate Std.Error t value Pr(>Itl) Intercept) 820.15 88.19 9.30 0.000 -3.616 .186 -3.05 0.006 Sample slope p-value...
For the circuit below, find the complete response i(t) for t>0. 25/82 ult) nooooo 40 mF →
Find a 95 percent confidence interval for the difference between means, where n1 = 50, n2 = 36, X1 = 80, X2 = 75, sı2 = 5, and s22 = 3. Assume unequal variances. Essay Toolbar navigation B 1 U s 를 들 를 А When we test Ho: M1 - u2 SO, HA: M1 – u2 >0, X1 = 15.4, X 2 = 14.5, si = 2, s2 = 2.28, n1 = 35, and n2 = 18 at a=.01,...
4. A sample of size n-81 is taken from an exponential distribution with the pdf f(x)-Be-6x, θ > 0, x > 0. The sample mean is i-35. Find a 95% large- sample confidence interval for θ using the Central Limit Theorem.
Let X ∼ Bin(124, p) with observed x = 78. Then, the 95% confidence interval for p is . To make the length of the 95% confidence interval for p not greater than 0.05, we need the sample size n to be at least . Based on the data, if we want to test H0 : p ≤ 0.6 against Ha : p > 0.6, we conclude at significance level α = 0.05. Let F ∼ F4,7. Assume c1 satisfies...
(4) Given Z N(0, 1) find the following: (a) P(Z 2 1.4) (b) P(Z> 0.75) (c) P(IZI S 2) (d) P(IZ 2 2) (e) Find z such that P(Z < z) = 0.11 (f) Find z such that P(Z > z) = 0.02
2. For the closed-economy, one-period model, suppose that U(C,) = min(C,Bl. and F(K, N) 0K+5N, where β > 0, α > 0, and δ > 0, Determine con- sumption, employment, output, leisure, and the real wage in a competitive equi- librium, and explain your solutions. Also draw a diagram with the consumers preferences and the production possibilities frontier, and show the competitive equilibrium in this diagram.
Based on your confidence interval from part (a), is there strong evidence that people can memorize words better when music is not playing compared to when it is? Yes, because the confidence interval includes 0/ No, because the confidence interval includes 0/ Yes, because the confidence interval does not include 0/ No, because the confidence interval does not include 0 Does listening to music affect how many words you can memorize? Student researchers tried to answer this question by having...