←Use technology and a t-test to test the claim about the population mean μ at the given level of significance a usinggiven sample statistics. Assume the population is normally distributed.Claim: μ> 76; x = 0.10Sample statistics: x = 77.8, s= 3.1, n = 27

From the provided information, Sample size (n) = 27 Sample mean (x̄) = 77.8 Sample standard…

Answered: Use technology and a t-test to test the…

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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Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd = 0. x / 6 2 3 2 3 y / 8 7 9 7 14 Compute the absolute value of the test statistic. (Round your answer to nearest hundredth. Hint: The correct test statistic is positive.)
Use technology and a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ>79; α=0.10 Sample statistics: x=80.2, s=3.7, n=28 What are the null and alternative hypotheses? Choose the correct answer below. A. H0:μ≠79 HA:μ=79 B. H0:μ=79 HA:μ≠79 C. H0:μ≤79 HA:μ>79 D. H0:μ≥79 HA:μ<79 What is the value of the standardized test statistic?= What is the P-value of the test statistic?= Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. A. Reject H0. There is enough evidence to support the claim. Your answer is correct. B. Reject H0. There is not enough evidence to support the claim. C. Fail to reject H0. There is enough evidence to support the claim. D. Fail to reject H0. There is not enough…
A population of values has a normal distribution with u = 36 and o = 31.3. You intend to draw a random sample of size n = 12. Please answer the following questions, and show your answers to 1 decimal place. Find the value separating the bottom 11% values from the top 89% values. Find the sample mean separating the bottom 11% sample means from the top 89% sample means.
This assignment is worth 1 points. The extra point will be added to your overall course grade. For example: if you receive an 88% in the course you can receive up to 1 point giving you a new score of 89%. The following rubric will be used. 0.25 point for drawing the normal distribution curve with the mean value labeled on the curve and the appropriate area shaded. 0.25 point for determining the value of the standard deviation of the sample mean. 0.5 point for finding the correct probability. All work must be shown in order to receive any credit. Please upload your completed assignment here. The length of time taken on the SAT for a group of students is normally distributed with a mean of 2.5 hours and a standard deviation of 0.25 hours. A sample size of n = 60 is drawn randomly from the population. Find the probability that the sample mean is between two hours and three hours.
Can a normal approximation be used for a sampling distribution of sample means from a population with u = 55 and o = 10, when n = 4? Answer E Tables E Keypad Keyboard Shortcuts O Yes, because the mean is greater than 30. O Yes, because the sample size is less than 30. O No, because the sample size is less than 30. O No, because the standard deviation is too small.
Test the claim below about the mean of the differences for a population of paired data at the level of significance x. Assume the samples are random and dependent, and the populations are normally distributed. Claim: μ ≥0; x = 0.10. Sample statistics: d= -2.4, s = 1.3, n = 19 Identify the null and alternative hypotheses. Choose the correct answer below. OA. Ho: Hd 0 The test statistic is t = (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) Since the P-value is the level of significance, C OB. Ho: Hd>0 Ha: Hd ≤0 O D. Ho: Hd #0 Ha: Hd = 0 OF. Ho: Hd 20 Ha: Hd <0 the null hypothesis. There statistically significant evidence to reject the claim.
Use a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ=52,500; α=0.10 Sample statistics: x=52,691, s=1900, n=17 LOADING... Click the icon to view the t-distribution table. What are the null and alternative hypotheses? Choose the correct answer below. A. H0: μ≠52,500 Ha: μ=52,500 B. H0: μ≤52,500 Ha: μ>52,500 C. H0: μ=52,500 Ha: μ≠52,500 D. H0: μ≥52,500 Ha: μ<52,500 What is the value of the standardized test statistic? The standardized test statistic is nothing. (Round to two decimal places as needed.) What is(are) the critical value(s)? The critical value(s) is(are) nothing. (Round to three decimal places as needed. Use a comma to separate answers as needed.) Decide whether to reject or fail to reject the null hypothesis. A. Fail to reject H0.…
Use technology to help you test the claim about the population mean, μ, at the given level of significance, α, using the given sample statistics. Assume the population is normally distributed. Claim: μ>1230; α=0.07; σ=205.81. Sample statistics: x=1263.09, n=250 Calculate the standardized test statistic. The standardized test statistic is enter your response here . (Round to two decimal places as needed.)
Determine whether a normal sampling distribution can be used for the following sample statistics. If it can be used, test the claim about the difference between two population proportions p, and p, at the level of significance Assume that the samples are random and independent. Claim: p, *P2, a = 0.01 Sample Statistics: x, = 39, n, = 65, x, = 37, n, = 60 Determine whether a normal sampling distribution can be used. The samples are random and independent. A normal sampling distribution V be used becausen,p=,n,q=, np=, and n,q=O: (Round to two decimal places as needed.) State the null and alternative hypotheses, if applicable. O A. Ho: P, 2P2 H: P1 P2 O D. The conditions to use a normal sampling distribution are not met. Calculate the standardized test statistic for the difference p, - P2, if applicable. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. 2= (Round to two decimal places as needed.) OB. The conditions to use a normal…
Use technology and a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ>76; α=0.01 Sample statistics: x=79.1, s=3.5, n=27

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Use technology and a t-test to test the claim about the population mean μ at the given level of significance a using given sample statistics. Assume the population is normally distributed. Claim: μ> 76; x = 0.10 Sample statistics: x= 77.8, s = 3.1, n = 27