Mathematics, 13.11.2020 17:10 ohgeezy
Stainless steels can be susceptible to stress corrosion cracking under certain conditions. A materials engineer is interested in determining the proportion of steel alloy failures that are due to stress corrosion cracking. In the absence of preliminary data, what is the minimum sample size required to ensure a 90% confidence interval for p to within 0.02
Answers: 3
Mathematics, 21.06.2019 18:20
Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? Ο2stat=what is the p-value? p-value=is this value significant atΞ±=0.025?
Answers: 2
Mathematics, 21.06.2019 22:00
Given that sinβ
= 1/4, 0 < β
< Ο/2, what is the exact value of cosβ
? a. (β4)/4 b. (β15)/4 c. (4Ο)/2 d. (4β2)/4
Answers: 2
Mathematics, 21.06.2019 23:20
Identify the function that contains the data in the following table: x β β -2 β β β β 0 β β β β 2 β β β β 3 β β β β 5 β β f(x) β β 5 β β β β 3 β β β β 1 β β β β 2 β β β β 4 β β possible answers: f(x) = |x| + 1 f(x) = |x - 2| f(x) = |x - 2| - 1 f(x) = |x - 2| + 1
Answers: 1
Mathematics, 22.06.2019 02:30
In july, the average temperature in one us city was 29Β°c. by december, the average temperature had fallen by 29Β°c. explain why the average temperature in december was 0Β°c.
Answers: 3
Stainless steels can be susceptible to stress corrosion cracking under certain conditions. A materia...
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