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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 is greater than the mean strength after six days? Let μ1 represent the mean strength after three days and μd = μ1 - μ2. Use the a = 0.01 level and the P-value method with the table.   Block   1 2 3 4 5 After 3 days 1389 1380 1302 1377 1336 After 6 days 1314 1321 1318 1386 1356 Part (a) State the appropriate null and alternate hypotheses. H0:   H1: This is a ___ test. Part (b); _ < P-value <= _ Part (c); There __ enough evidence to conclude that the mean strength after three days differs from the mean strength after six days.(is/is not)

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 is greater than the mean strength after six days? Let μ1 represent the mean strength after three days and μd = μ1 - μ2. Use the a = 0.01 level and the P-value method with the table.   Block   1 2 3 4 5 After 3 days 1389 1380 1302 1377 1336 After 6 days 1314 1321 1318 1386 1356 Part (a) State the appropriate null and alternate hypotheses. H0:   H1: This is a ___ test. Part (b); _ < P-value <= _ Part (c); There __ enough evidence to conclude that the mean strength after three days differs from the mean strength after six days.(is/is not)

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 6CR
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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 is greater than the mean strength after six days? Let μ1 represent the mean strength after three days and μd = μ1 - μ2. Use the a = 0.01 level and the P-value method with the table.

  Block
 
1
2
3
4
5
After
3
days
1389
1380
1302
1377
1336
After
6
days
1314
1321
1318
1386
1356

Part (a)

State the appropriate null and alternate hypotheses.

H0:
 
H1:

This is a ___ test.

Part (b);

_ < P-value <= _

Part (c);
There __ enough evidence to conclude that the mean strength after three days differs from the mean strength after six days.(is/is not)

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