to an initiative to recruit top students, an administrator at a college claims that this year's entering class must greater mean IQ score than that of entering classes from previous years. The administrator tests a random sample this year's entering students and finds that their mean IQ score is 117, with a standard deviation of 15. The ecords indicate that the mean IQ score for entering students from previous years is 110. enough evidence to conclude, at the 0.10 level of significance, that the population mean IQ score, u, of this ass is greater than that of previous years? To answer, assume that the IQ scores of this year's entering class are nately normally distributed. a one-tailed test. Then complete the parts below. our intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) State the null hypothesis Ho and the alternative hypothesis H₁. Ho :O H₁ :0 Determine the type of test statistic to use. (Choose one) Find the value of the test statistic. (Round to three or more decimal places.) 0 Find the critical value. (Round to three or more decimal places.) 0 Can we conclude that the mean IQ score of this year's class is greater than that of previous years? O Yes O No H X 0=0 D X S OSO 0*0 0<0 Р 0
to an initiative to recruit top students, an administrator at a college claims that this year's entering class must greater mean IQ score than that of entering classes from previous years. The administrator tests a random sample this year's entering students and finds that their mean IQ score is 117, with a standard deviation of 15. The ecords indicate that the mean IQ score for entering students from previous years is 110. enough evidence to conclude, at the 0.10 level of significance, that the population mean IQ score, u, of this ass is greater than that of previous years? To answer, assume that the IQ scores of this year's entering class are nately normally distributed. a one-tailed test. Then complete the parts below. our intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) State the null hypothesis Ho and the alternative hypothesis H₁. Ho :O H₁ :0 Determine the type of test statistic to use. (Choose one) Find the value of the test statistic. (Round to three or more decimal places.) 0 Find the critical value. (Round to three or more decimal places.) 0 Can we conclude that the mean IQ score of this year's class is greater than that of previous years? O Yes O No H X 0=0 D X S OSO 0*0 0<0 Р 0
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
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Transcribed Image Text:Thanks to an initiative to recruit top students, an administrator at a college claims that this year's entering class must
have a greater mean IQ score than that of entering classes from previous years. The administrator tests a random sample
of 17 of this year's entering students and finds that their mean IQ score is 117, with a standard deviation of 15. The
college records indicate that the mean IQ score for entering students from previous years is 110.
Is there enough evidence to conclude, at the 0.10 level of significance, that the population mean IQ score, μ, of this
year's class is greater than that of previous years? To answer, assume that the IQ scores of this year's entering class are
approximately normally distributed.
Perform a one-tailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.)
(a) State the null hypothesis Ho and the alternative hypothesis H₁.
Ho :O
0
H₁ :0
(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 critical value. (Round to three or more decimal places.)
(e) Can we conclude that the mean IQ score of this year's class is greater than
that of previous years?
O Yes O No
H
XI
O
S
X
00
0=0 OSO
Р
<D
Ś
00
020
000< 0>0
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