Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is Hd = 0. Compute the value of the t test statistic. Round intermediatecalculations to four decimal places as needed and final answers to three decimal places as needed.28 31 20 25 28 27 33 35y 26 27 2625 29 32 33 34XOA. t= -1.185OB. t= -0.523OC. t= -1.480OD. t= -0.6902PE72WZSxHmmandIEDс41RFD%LTG6BY3IHNUJ.8IM(9KIOH2OLPcommandTime Remaining: 01:12:18;x(option?"1I.Nextreturn

We have given paired sample data as follows: x 28 31 20 25 28 27 33 35 y 26 27 26 25 29 32 33…

Answered: Assume that you want to test the claim…

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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The accompanying table contains the percentage of a certain country's population that uses a certain social media. Complete parts (a) through (c) below. A Click the icon to view the percentage of a country's population that uses a certain social media. a. Compute the first quartile (Q,), the third quartile (Q), and the interquartile range. Percentage of a population that uses a social media Q, = Q3 = 56 58 42 56 43 36 6 25 43 16 44 D Interquartile range = 5 32 29 60 19 28 37 44 81 58 55 (Type integers or decimals. Do not round.) b. List the five-number summary. The five-number summary is || || ||| (Type integers or decimals. Use ascending order. Do not round.) Print Done c. Construct a boxplot and describe its shape. Identify the correct boxplot. O Time Remaining: 01:01:46 Next View instructor tip 605 PM 76°F 2/17/2022 P Type here to seareh 10 4- IOI ese & 8. %24 4 %23 3. 7. R
18. We want to study the relationship between size (sq. m) and the price of houses. We randomly chose 25 houses and recorded the size and price of them. The excel output for the data is given below: Regression statistics: Multiple R: 0.586378154 R Square: 0.343839339 Adjusted R Square: 0.315310615 Standard Error: 34761.73162 Observations: 25 df SS MS F SignificanceF Regression 1 14563843876 1.46E+10 12.05239 0.0020659 Residual 23 27792693660 1.21E+09 Total 24 42356537536 Coefficients StandardError T stat P-value lower95% upper95% Lower95.0% upper95.0% Intercept 189769.0334 28557.61831 6.645128 8.85E-07 130693.1 248844.968 130693.1 248844.968 Size (sq.meter) 444.1951525 127.9490924 3.471655 0.002066 179.51229 708.878016 179.51229 708.878016 Write down your answers to (a)-(c) in the box below. Give your answers to 4 decimal places. Write down 95% confidence interval for the slope of the relationship between price and size. We want to…
y). You believe the claim is incorrect and find th random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 2 mpg. At a = 0.10, test the company's claim. Assume the population is normally distributed. Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. o is known. OE. Use a normal sampling distribution because n > 30. State the appropriate hypotheses to test. OA. Ho: ≤25 H₂ μ25 OC. Ho μ#25 H₂ μ = 25 his Get more help - A Tip P Pearson OF. Use a normal sampling distribution because the population is normal, and o is unknown. OB. Ho: μ ≥ 25 H₂: μ< 25 OD. Ho: μ = 25 H₂: μ#25 Clear all opyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | Q Search ? O Check answer 151249225 3:26 PM 7/19/2023
Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.10 significance level to test for a difference between the measurements from the two arms. What can be concluded? Right arm 148 145 138 130 136 Left arm 166 179 176 144 141 In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesis test? A. H0: μd≠0 H1: μd=0 B. H0: μd=0 H1: μd≠0 C. H0: μd≠0 H1: μd>0 D. H0: μd=0 H1: μd<0 Identify the test statistic. t= (Round to two decimal places as needed.)…
Find the weighted estimate, p to test the claim that p, p2. Use a= 0.02. The sample statistics listed below are from independent samples. n, = 1000, x, = 250, and n, = 1200, x, = 195 3D195 一 O A. 0.789 O B. 0.202 OC. 0.138 O D. 0.110 uc OF
Km. 211.
The following table gives you the horsepower for each of the seven vacuum cleaners tested. Determine the range and standard sample deviation. 2.75 2.25 1.75. 1.25 1.75 Range=? S=?
rength of concrete: The compressive strength, in kilopascals, was measured for concrete blocks from five different batches of concrete, both three and six days after pouring. The data are as follows. Can you conclude that the mean strength after three days differs from the mean strength after six days? Let H, represent the mean strength after three days and P =H, -P. Use the a=0.01 level and the P-value method with the TI-84 Plus calculator. Block 1 4 After 3 days 1317 1363 1321 1333 1311 After 6 days 1382 1341 1327 1342 1386 Send data to Excel Part 1 of 4 (a) State the null and alternate hypotheses. H: This hypothesis test is a (Choose one) v test. Part 2 of 4 (b) Compute the P-value. Round the answer to at least four decimal places. P-value = Part 3 of 4 Determine whether to reject Ho. (Choose one) v the null hypothesis. Part 4 of 4 (c) State a conclusion. There (Choose one) v enough evidence to conclude that the mean strength after three days differs from the mean strength after six…
Calculate the standard score (z-score) of the given sample mean. Round your answer to two decimal places. μ=29μ=29 and σ=8σ=8; n=66n=66; x¯=28
Answer numbers 3 to 5 only
4. Which proportion of a normal distribution is located between the mean and z = +1.40? 5. A vertical line drawn through a normal distribution at z = +2.11 separates the distribution into two sections, the body and the tail. Which proportion of the distribution is in the tail?
and what mBq

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