Mathematics, 02.12.2019 22:10 chgnjcb

# An article studied differences between expert and consumer ratings by considering medal ratings for wines, which could be gold (g), silver (s),or bronze (b). three categories were then established.

rating is the same [(g, g), (b, b), (s, s)]

rating differs by one medal [(g, s), (s, g), (s, b), (b, s)]

rating differs by two medals [(g, b), (b, g)]

the observed frequencies for these three categories were 66, 101, and 49, respectively. on the hypothesis of equally likely expert ratings and consumer ratings being assigned completely by chance, each of the nine medal pairs has probability 1/9. carry out an appropriate chi-squared test using a significance level of 0.10.

calculate the test statistic. (round your answer to two decimal places.)

χ2 =

Answers: 3

Mathematics, 04.02.2019 21:10

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Mathematics, 04.02.2019 20:29

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

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Mathematics, 04.02.2019 03:59

If the value of your correlation coefficient is .26, the correct analysis would be: a. the data has a strong positive association b. the data has a strong negative linear association c. data has a weak positive linear association d. data has a weak negative linear association

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An article studied differences between expert and consumer ratings by considering medal ratings for...

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