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Doctors are researching a new cholesterol medication for male teenagers. Eighteen (18) randomly selected male teenagers have taken the new medication for six weeks. The doctors want to create 95% confidence interval to estimate the true mean cholesterol level of male teenagers that take the new medication. Their data follow a normal distribution and the population standard deviation is σ=30
Have the requirements for the confidence interval been satisfied? Why or why not?
Yes. The distribution of sample means is normal because the data are normal.
Yes. The distribution of sample means is normal because the sample size is large.
No. The distribution of sample means is not normal because the sample size is small.
No. The distribution of sample means is not given to be normal.
Why do we naturally tend to trust some strangers more than others? One group of researchers decided to study the relationship
This question relates to Basic Statistics and it discuss about providing a research question the field of education that implies the use of MANOVA or ANOVA for analysis. The question needs to be recognized with alternate hypothesis and null hypothesi..
(a) Show for either the discrete case or the continuous case that the partial derivative of the joint momentgenerating function with respect to ti at t1 = t2 = ··· = tk = 0 is E(Xi).
Environmentalists accuse us of blocking the plan to convert Antarctica into a world park. In fact, nothing could be further from the truth.
In each of the last five decades i business ethics, which decade saw the most development in business ethics? why?
About how many of the 100 confidence intervals are likely to cover the true percent?- Is there any way to know which of the polls cover the true percent and which ones don't?
Obtain b0 and b1 of the regression equation defined as y ^ = b0 + b1X and the coefficient of determination (r2) from the Excel regression output. Draw the fitted regression line on the scatter diagram.
The average SAT verbal score for students from one high school over the last ten exams
How do we do a test of hypothesis to find if this survey result has the same proportions as historically.
The following figures for U.S. imports of agricultural products and manufactured goods were taken from selected years over a 30-year period (in $ billions).
Use relative frequencies to estimate the probability that a seed will germinate, What is your estimate?
The early twentieth century is often described as the lowest point in the history of race relations in the United States.
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