ITP 303 SESSION 9 QUESTIONS WITH
100%RATED ANSWERS 2024/2025 LATEST
UPDATED/GET A+
A researcher believes that Drug A is more effective (has a larger mean) than Drug B. What is an
appropriate alternative hypothesis for any test he may conduct (note: µ = mean)?
A) µ A > µ B
B) µ A - µ B > 0
C) µ B < µ A
D) All of the above
E) None of the above - All of the above
What is the false rejection of the null hypothesis called? - Type I error
The probability of obtaining a test statistic value at least as extreme as the observed test statistic
(computed from the sample) under the assumption that the null hypothesis is true, is called the: -
P-value
A Lean Six Sigma team is comparing a new treatment to the existing process and would like to
be 95% confident in the conclusion. What is the risk, or significance level threshold for the
decision-making process? - 0.05
A public poll on the perception of business ethics asked consumers and CEOs whether they
considered 'insider trading' a management practice that is 'always wrong'. A two proportions test
was performed on the data, to see if the views of consumers differed from those of CEOs on this
issue. The p-value of the test was computed to be 0.06. Is this enough evidence to declare a
significant difference between consumers and CEOs on this issue, at a 10% significance level? -
Yes. The data do provide enough evidence at the 10% level to conclude that the proportion of
consumers that consider insider trading always wrong is significantly different from the
proportion of CEOs that do.
100%RATED ANSWERS 2024/2025 LATEST
UPDATED/GET A+
A researcher believes that Drug A is more effective (has a larger mean) than Drug B. What is an
appropriate alternative hypothesis for any test he may conduct (note: µ = mean)?
A) µ A > µ B
B) µ A - µ B > 0
C) µ B < µ A
D) All of the above
E) None of the above - All of the above
What is the false rejection of the null hypothesis called? - Type I error
The probability of obtaining a test statistic value at least as extreme as the observed test statistic
(computed from the sample) under the assumption that the null hypothesis is true, is called the: -
P-value
A Lean Six Sigma team is comparing a new treatment to the existing process and would like to
be 95% confident in the conclusion. What is the risk, or significance level threshold for the
decision-making process? - 0.05
A public poll on the perception of business ethics asked consumers and CEOs whether they
considered 'insider trading' a management practice that is 'always wrong'. A two proportions test
was performed on the data, to see if the views of consumers differed from those of CEOs on this
issue. The p-value of the test was computed to be 0.06. Is this enough evidence to declare a
significant difference between consumers and CEOs on this issue, at a 10% significance level? -
Yes. The data do provide enough evidence at the 10% level to conclude that the proportion of
consumers that consider insider trading always wrong is significantly different from the
proportion of CEOs that do.
