Mathematics, 19.12.2019 21:31 yorblayo17011
At western university the historical mean of scholarship examination scores for freshman applications is 900. a historical population standard deviation σ= 180 is assumed known. each year, the assistant dean uses a sample of applications to determine whether the mean examination score for the new freshman applications has changed.
a. state the hypotheses.
b. what is the 95% confidence interval estimate of the population mean examination
score if a sample of 200 applications provided a sample mean x¯¯¯= 935?
c. use the confidence interval to conduct a hypothesis test. using α= .05, what is your
conclusion?
d. what is the p-value?
Answers: 1
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Mathematics, 21.06.2019 19:00
Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?
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At western university the historical mean of scholarship examination scores for freshman application...
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