Strength 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 u, represent the mean strength after three days and u, =u,-th. Use the a = 0.10 level and the P-value method with the TI-84 Plus calculator. Block 1 3 4 After 3 days 1359 1345 1303 1359 1354 After 6 days 1340 1381 1357 1386 1352 Send data to Excel 47 Part: 0 / 4 Part 1 of 4 (a) State the null and alternate hypotheses. Ho: O

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.