Maurice Tutor

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    Argosy University/ Phoniex University/
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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 30 Dec 2017 My Price 7.00

strength of concrete blocks

In an experiment to determine the effect of curing time on compressive strength of concrete blocks, two samples of 15 blocks each were prepared identically except for curing time. The blocks in one sample were cured for two days, while the blocks in the other were cured for six days. The compressive strengths of the blocks, in MPa, are as follows:

 

Cured 2 days (X):

1326

1302

1314

1270

 

1287

1328

1318

1296

 

1306

1329

1255

1310

 

1255

1291

1280

 

Cured 6 days (Y ):

1387

1301

1376

1397

 

1399

1378

1343

1349

 

1321

1364

1332

1396

 

1372

1341

1374

 

Can you conclude that the mean strength is greater for blocks cured for six days?

 

 

Answers

Maurice Tutor
(5)
Status NEW Posted 30 Dec 2017 09:12 PM My Price 7.00

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