Mathematics, 08.11.2019 07:31 Scotdouglas346
An article suggested that yield strength (ksi) for a36 grade steel is normally distributed with μ = 44 and σ = 5.0. (a) what is the probability that yield strength is at most 40? greater than 62? (round your answers to four decimal places.) at most 40 greater than 62 (b) what yield strength value separates the strongest 75% from the others? (round your answer to three decimal places.)
Answers: 3
Mathematics, 21.06.2019 18:30
This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤
Answers: 2
Mathematics, 21.06.2019 23:00
Which geometric principle is used to justify the construction below?
Answers: 1
Mathematics, 22.06.2019 00:30
Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)
Answers: 2
Mathematics, 22.06.2019 02:30
According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: μ=6.4 and ha: μ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.
Answers: 3
An article suggested that yield strength (ksi) for a36 grade steel is normally distributed with μ =...
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