Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day. A sample of 77 stocks traded on the NYSE that day showed that 28 went up. You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of a = 0.02. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a Ogreater than a This p-value leads to a decision to... O reject the null accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3. O There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3. O The sample data support the claim that the proportion of stocks that went up is is more than 0.3. Thore is not sufficient sample evidence to support the claim that the proportion of stocks that went up
Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day. A sample of 77 stocks traded on the NYSE that day showed that 28 went up. You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of a = 0.02. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a Ogreater than a This p-value leads to a decision to... O reject the null accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3. O There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up is is more than 0.3. O The sample data support the claim that the proportion of stocks that went up is is more than 0.3. Thore is not sufficient sample evidence to support the claim that the proportion of stocks that went up
Chapter6: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 17PS: Cholesterol Cholesterol in human blood is necessary, but too much can lead to health problems. There...
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Transcribed Image Text:Homework 5.3, 5.4, 6.1 - MTH-243-0-42759- Statistics I
Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer
of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price
(The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume
that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.
A sample of 77 stocks traded on the NYSE that day showed that 28 went up.
You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You
use a significance level of a =
0.02.
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
%3D
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value
%3D
The p-value is...
less than (or equal to) a
greater than a
This p-value leads to a decision to...
reject the null
accept the null
fail to reject the null
As such, the final conclusion is that...
There is sufficient evidence to warrant rejection of the claim that the proportion of stocks that went up
is is more than 0.3.
There is not sufficient evidence to warrant rejection of the claim that the proportion of stocks that
went up is is more than 0.3.
The sample data support the claim that the proportion of stocks that went up is is more than 0.3.
There is not sufficient sample evidence to support the claim that the proportion of stocks that went up
is is more than 0.3.
☆吧A
2
NOV
20
W
3D
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