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MATLAB: An Introduction with Applications

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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Solve the problem.
Given that the mean square for treatments (MST) for an ANOVA F-test is 5,000 and the mean square for error (MSE) is 3,750, fınd the
value of the test statistic F.
O 1.25
O 1.33
O .800
0 .750

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A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is different from 0.5. Assume that sample data consists of 66 girls in 144 births, so the sample statistic of 1124 results in a z score that is 1 standard deviation below 0. Complete parts (a) through (h) below.Click here to view page 1 of the Normal table. LOADING... Click here to view page 2 of the Normal table. LOADING...Question content area bottomPart 1a. Identify the null hypothesis and the alternative hypothesis. Choose the correct answer below.A.H0: p=0.5H1: p>0.5B.H0: p≠0.5H1: p=0.5C.H0: p=0.5H1: p≠0.5D.H0: p=0.5H1: p<0.5Part 2b. What is the value of α?α=0.050.05 (Type an integer or a decimal.)Part 3c. What is the sampling distribution of the sample statistic? Student (t) distribution Normal distribution χ2Part 4d. Is the test two-tailed, left-tailed, or right-tailed? Left-tailed Two-tailed…
.1.25 Use the confidence interval to find the margin of error and the sample mean. (0.586,0.730) The margin of error is
A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is greater than 0.5. Assume that sample data consists of 78 girls in 144 births, so the sample statistic of 1324 results in a z score that is 1 standard deviation above 0. Complete parts (a) through (h) below.Click here to view page 1 of the Normal table. LOADING... Click here to view page 2 of the Normal table. LOADING...Question content area bottomPart 1a. Identify the null hypothesis and the alternative hypothesis. Choose the correct answer below.Part 7g. What are the critical value(s)?The critical value(s) is/are enter your response here. (Round to two decimal places as needed. Use a comma to separate answers as needed.)Part 8h. What is the area of the critical region?The area is enter your response here. (Round to two decimal places as needed.)
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Words were displayed on a computer screen with background colors of red and blue. Results from scores on a test of word recall are given below. Use a 0.05 significance level to test the claim that the samples are from populations with the same standard deviation. Assume that both samples are independent simple random samples from populations having normal distributions. Does the background color appear to have an effect on the variation of word recall scores? n X S Red Background 35 15.04 5.97 Blue Background 36 12.93 5.46 What are the null and alternative hypotheses? O A. H₁: 0²₁ = 0²/2 H₁:0²/ ± 0²/2 OB. Ho: 0² #02/2 H₁:0² = 0²/2 O C. H₁: 0²₁2 = 0²/22 OD. H₂:0² = 02²2 H₁ : 0²71 <0²/22 H₁: 021 202²/2 Identify the statistic. F= (Round to two decimal places as needed.) Use technology to identify the P-value. The P-value is. (Round to three decimal places as needed.) What is the conclusion for this hypothesis test? O A. Reject Ho. There is sufficient evidence to warrant rejection of the…
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