Answers:1.a) rXY = 0.461, t = 1.272, Do not reject H0: no evidence for a significant correlation between the two variablesb) 43.66 1. Verbal ability consists of at least two components: verbal comprehension (e.g., reading ability) and verbal fluency (e.g.,writing ability). A researcher measures these two components in a sample of 8 seventh-grade children and obtains thefollowing scores:Comprehension Fluency.7442 48 52 76 695775624046383654425025a) Is there a significant correlation between the two variables (a ≤.05)?b) If another seventh-grader obtained a verbal comprehension score of 70, what would his or her predicted verbal fluencyscore be?

The given two components are verbal comprehension and verbal fluency.

Answered: 1. Verbal ability consists of at least…

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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K A company is developing a new high performance wax for cross country ski racing. In order to justify the price marketing wants, the wax needs to be very fast. Specifically, the mean time to finish their standard test course should be less than 55 seconds for a former Olympic champion. To test it, the champion will ski the course 8 times. The champion's times (selected at random) are 54.9, 63.7, 48.1, 53.9, 49.3, 47.4, 53.7, and 44.9 seconds to complete the test course. Should they market the wax? Assume the assumptions and conditions for appropriate hypothesis testing are met for the sample. Use 0.05 as the P-value cutoff level. Choose the correct null and alternative hypotheses below. Ο A. Ho:μ = 55 HAH55 Calculate the test statistic. ... t= OB. Ho:μ>55 HA:μ = 55 OD. Ho:μ<55 HAH=55 (Round to three decimal places as needed.) Calculate the P-value. P-value= (Round to four decimal places as needed.) Choose the correct clusion below. A. No, do not market the wax as there is insufficient…
The sodium content of 30 packages of 300 grams of corn flakes of a certain brand was examined. The data in milligrams: the mean is 129.753 and s = 0.929: (a) Can the assertion that the sodium content of this brand of cereal is different from 130 mg be supported? Use = 0.5, find the p-value. b) Calculate the power of the test if the true average sodium is 130.5 mg. c) What sample size would be required to detect a true average sodium content of 130.1 if we want the power to be at least 0.75? Note:The exercise in the image is in Spanish, which is the original, to make it easier to understand.
. In testing the hypothesis Ho : μ = 75 vs H₁ : µ ‡ 75, the following information is known: n=64, x = 78 and ²: = 100. The test statistic is equal to: (a) -2.4 (b) 2.4 (c) 1.96 (d) -1.96 (e) None of the above
The test statistic for Ho: p = 0.75 versus HA: p > 0.75 is z = -3.05. What is the p-value for this test? Round to four decimal places. p-value
VI- The Decision which supports economist claim, for the test of hypothesis, at the level α=0.50 and the z statistic is (- 1.69 ), to test the hypothesis, H0⋅μ0=μ1againstHA⋅μ0notequalμ1 is ………....………………..
If the coefficient of determination between two independent variables is 0.33, what is the VIF? VIF= (Round to three decimal places as needed.)
Solve this problem and use the tabular solution as an example for follow to get the answer
10 16) Which distribution is used to test the claim that the standard deviation of the ages (in years) of when girls first learn to ride a bike is equal to the standard deviation of the ages (in years) when boys first lean to ride a bike? A) Normal B) t C) chi-square D) F
1. Find the value of Z such that the proportion of the area a) Between the mean and the Z-score is 3.01 To the right of the Z-score is 0,251 c) Between Z--0.53 and Z=1.59 dents
Please no written by hand solution and no img . Pairs of hypotheses about a claim (a statistic of the population, like its mean, μ) include the following: (A) H0: μ ³ k and Ha: μ < k, where k is some value (B) H0: μ = k and Ha: μ ≠ k, where k is some value (C) H0: μ > k and Ha: μ £ k, where k is some value (D) H0: μ £ k and Ha: μ > k, where k is some value (E) H0: μ < k and Ha: μ ³ k, where k is some value
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