Data in the following Table 4 shows the number of words spelled correctly by 10 participants of an international spelling bee competition before and after training. Is there sufficient evidence to conclude that training can increase the number of words spelled correctly by the participants? Use a 0.05 significance level. Before training  204 393 391 265 326 220 423 342 480 464 after training 223 412 402 285 353 243 443 340 582 490

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Data in the following Table 4 shows the number of words spelled correctly by 10 participants of
an international spelling bee competition before and after training. Is there sufficient evidence
to conclude that training can increase the number of words spelled correctly by the participants?
Use a 0.05 significance level.

Before training  204 393 391 265 326 220 423 342 480 464
after training 223 412 402 285 353 243 443 340 582 490
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