The mean SAT score in mathematics is558. The standard deviation of these scores is36. A special preparation course claims that the mean SAT score,μ, of its graduates is greater than558. An independent researcher tests this by taking a random sample of50students who completed the course; the mean SAT score in mathematics for the sample was569. At the0.05level of significance, can we conclude that the population mean SAT score for graduates of the course is greater than558? Assume that the population standard deviation of the scores of course graduates is also36.Perform a one-tailed test. Then complete the parts below.Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary, consult a list of formulas.)(a)State the null hypothesisH0and the alternative hypothesisH1.H0:H1:(b)Determine the type of test statistic to use. ▼(Choose one) (c)Find the value of the test statistic. (Round to three or more decimal places.) (d)Find the p-value. (Round to three or more decimal places.) (e)Can we support the preparation course's claim that the population mean SAT score of its graduates is greater than558? Yes No

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Answered: The mean SAT score in mathematics is…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The mean SAT score in mathematics is

558

. The standard deviation of these scores is

. A special preparation course claims that the mean SAT score,

, of its graduates is greater than

558

. An independent researcher tests this by taking a random sample of

students who completed the course; the mean SAT score in mathematics for the sample was

569

. At the

0.05

level of significance, can we conclude that the population mean SAT score for graduates of the course is greater than

558

? Assume that the population standard deviation of the scores of course graduates is also

Perform a one-tailed test. Then complete the parts below.

Carry your intermediate computations to three or more decimal places, and round your responses as specified below. (If necessary, consult a list of formulas.)

(a)	State the null hypothesis H0 and the alternative hypothesis H1 .
H0:
H1:
(b)	Determine the type of test statistic to use.
	▼(Choose one)
(c)	Find the value of the test statistic. (Round to three or more decimal places.)

(d)	Find the p-value. (Round to three or more decimal places.)

(e)	Can we support the preparation course's claim that the population mean SAT score of its graduates is greater than 558 ?
Yes No