**Determine whether the normal distribution can be used to compare the following population proportions.**\[ n_1 = 41, \quad n_2 = 47, \quad \hat{p}_1 = 0.585, \quad \hat{p}_2 = 0.468 \]**Step 2 of 2**: Are the conditions for using the normal distribution met?**Answer**- ○ The conditions are met so the normal distribution cannot be used.- ○ The conditions are met so the normal distribution can be used.- ○ Not enough information to determine.- ○ The conditions are not met so the normal distribution can be used.(Keyboard Shortcuts options: Tables, Keypad)

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Answered: he whether the normal distribution can…

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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Read and analyze the following situation and supply the values of the following variable in the second column. Determine whether the following statements have a known or unknown population variance and provide a brief explanation to the mean by writing σx--,when the population variance is known ans sx-- when the population variance is unknown Situation Given Answer Standard Error Formula Consider a population consisting of 15, 2,12,4,5,8,6,9 and 17. Samples of size 5 are drawn from this population N= n= Given the populationmean of 98 and a sample standard deviation 2 in a sample size of 45 n= μ= s= A population composed of 10 items whose, measurement are 12,11,15,8,20,23,18,13,22 and 10. Samples of 6 items are drawn at random without replacement. N= n=
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Hello. Can someone help me with question D? What is the shape of the distribution for the data values?
If we want to compare average charges for males and females, we would use O two sample z- test O single sample t-test O Correlation OTwo sample t-test
You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. A sample of 24 night students and 28 day students and their GPA's are recorded below. Test the claim using a 1% level of significance. Assume the population variances are unequal and that GPAs are normally distributed. Give answers to 4 decimal places. GPA-Night GPA-Day 3.05 3.38 2.91 3.02 3.27 3.4 3.29 2.73 3.3 3.24 3.35 2.69 3.39 3.25 3.52 3.33 3.39 2.33 3.25 3.51 3.08 3.07 3.27 2.9 3.32 3.48 3 2.94 3.62 2.93 3.64 3.31 3.54 2.62 3.45 2.66 3.29 3.27 3.56 2.76 3.15 2.7 3.4 3.27 3.51 2.96 3.54 2.86 3.24 2.72 2.64 3.14 What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols in the order they appear in the problem.H0: Select an answer x̅₂ s² x̅₁ σ² μ₂ μ₁ p ? = ≠ > < ≥ ≤ Select an answer 0 μ₂ x̅₂ x̅₁ σ² p s² μ₁ H1: Select an answer σ² x̅₂ x̅₁ μ₁ μ₂…
Using the appropriate table in textbook (Keller, Appendix B) or Excel, a. find z.05. Draw the distribution and locate the z-value (z.os) in the distribution. b. find-z.05. Draw the distribution and locate the z-value (-z.05) in the distribution. c. find t50,.01. Draw the distribution and locate the t-value (t50,.01) in the distribution. d. find-t50,.01. Draw the distribution and locate the t-value (-t50,.01) in the distribution. e. find X²0,.05. Draw the distribution and locate the x²-value (x²0,05) in the distribution. f. find F2,20,.05. Draw the distribution and locate the F-value (F2,20,.05) in the distribution.
Exhibit 9-5 n = 16 HO: u z 80 x = 75.607 Hạ: u < 80 o = 8.246 Assume the population is normally distributed. 3. Refer to Exhibit 9-5. The test statistic equals .53 -2.131 -.53 2.131
Titles Notation v sample mean а. Ро coefficient of determination b. N C. s2 d. V population standard deviation d. o sample standard deviation e. o V sample size f. s mean of a sampling distribution of sample means g. r h. a population variance i. l the proportion found in Ho j. p sample proportion k. x? correlation coefficient l. po population mean m. OF population size n. Ha o. p2 the mean found in the null hypothesis р. р v chi-squared 9. п
Lesson 7: Understanding the Normal Distribution II. PRETEST: Task 1: TRUE OR FALSE, Write TRUE if the given statement is true. Otherwise, write FALSE. 1. A normal random variable is a random variable X whose distribution has the shape of a normal curve. 2. The total area of the normal probability distribution is 100. 3. All observations of any normal random variable X with the mean u and standard deviation o to a new set of observations of another normal random variable Z with mean u = 0 and standard deviation o = 1. 4. The value of a probability is a number from 0 to 1. 5. The area of a region between z = 0 and z = 2 is 0.4772. IV. EVALUATION: Direction: Fill in the blanks with the appropriate word or phrase to make the following illustration on normal random variable meaningful. 1. A random variable X whose distribution has the shape of a normal curve called 2. The shape of the normal curve is with the total area of 3. The center of the normal curve is the with the value of if it is…
Please help with part e
Test the claim below about the mean of the differences for a population of paired data at the level of significance a. Assume the samples are random and dependent, and the populations are normally distributed. Claim: H. = 0; a 0.05. Sample statistics: d = 3.2, s, =8.49, n=9 Identify the null and alternative hypotheses. Choose the correct answer below. O B. Ho: Ha 0 H: Hg =0 O A. Ho: Ha s0 H: Hg>0 O D. Ho: Ha>0 H: Hg sO OC. H,: Ha <0 Ha: Ha 20 O E. H, Ha 20 F. Ho: Ha=0 Ha: H #0 The test statistic is t= (Round to two decimal places as needed.)
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