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You work for a bubble gum company testing new flavors to bring to market. Your marketing department claims in an ad they made that 8 out of 10 people prefer the new flavor "crazy tasks." You conducted a poll and found that 28 out of 60 people prefer the new flavor. Test the claim by using a confidence interval at a 95% confidence level.
State your null and alternative hypothesis in a complete sentence.
What is the 95% confidence interval?
What is your formal conclusion?
For the data on state-dependent memory in given problem, plot the cell means using a bar graph. Compute df, MS, and F values.
Did the groups differ in average math score at the start of this study?- Did the group taught using the Accelerated Math program show a significant improvement in test scores?
Using the following data, test the question of whether an equal number of Democrats, Republicans, and Independents voted during the most recent election.
The breakdown of the students enrolled in a university course by class (F: freshman, So: sophomore, J: junior, Se: senior) and academic major.
Consider the following stemplot. The mean of the data represented in this stemplot ?
Two drugs, amantadine (A) and rimantadine (R), are being studied for use in combating the influenza virus. A single 100-mg dose is adminis- tered orally to healthy adults. The response variable is the time (minutes) required to reach maximum conce..
question a processor of carrots cuts the green top off each carrot washes the carrot and inserts six to a package.
Create a 99 percent confidence interval for difference in means between Line B and Line C.
When, in a criminal court, a defendant is found "not guilty," is the court saying with certainty that he or she is innocent? Explain.
What is the probability that a golfer selected at random will complete at least 2 rounds of golf on his or her next outing?
Airplane manufacturers use only slow-burning materials. For the plastic in coffee pots the maximum burn rate is 4 inches per minute.
Strong association but no correlation The gas mileage of an automobile first increases and then decreases as the speed increases.
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