The compressive strength, in kilopascals, was measured for concrete blocks from fivedifferent batches of concrete, both three and six days after pouring. The data are presentedin the following table.Batch3135241341137651327135813161355After 3 daysAfter 6 days137313661384Can you conclude that the mean strength after six days is greater than the mean strengthafter three days?

Solution: Here, the same batches are taken for after 3 days and after 6 days. Then, paired t test…

Answered: The compressive strength, in…

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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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…
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