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Provide an example of how you could/would apply a hypothesis test using Chi Square. State the null and alternate hypotheses. You do not need to complete the entire five step process using actual numbers. Note there are no symbols used in stating a Chi Square type hypothesis - only words.
The dimension is supposed to be 224 mm and the variability of the manufacturing process is unknown. Is there evidence that the mean dimension is not 224 mm?
Find the test statistic value for two mean tests using equal variance formula.
If a null hypothesis is rejected at a significance level of .01, it will ______ be rejected at a significance level of .05
After treatment is administered to individuals in sample, sample mean is found to be M = 55. Determine Cohen's d measure effect size for both tests (σ = 20 and σ = 10).
Quality control studies for Leaky Jet Computer Printers show the lifetime of the printer follows a normal distribution with a mean of 4.5 years and a standard deviation of 0.85 years.
Is the speed of solving the problem different for people who get such instructions compared to the speed for people who are given no special instructions?
He is sorry but there is a 99.9% (1-0.001) chance that you have HIV. Is he correct? What is the actual probability that you are HIV positive?
An election poll reported that a candidate has an approval rating of 54% with a margin of error of 4%. Construct a confidence interval for proportion of adults who approve of the candidate.
Proportion of out-of-tolerance items is greater than 0.02, the robot will be overhauled. Otherwise it will be allowed to continue operating. What is the probability that a satisfactory robot will be overhauled unnecessarily?
What is the probability that the police will strike and the firefighters will not? What is the probability that the firefighters will strike and the police will not?
Show that someone will think that the claim has more than a fifty percent chance of being true if p > q / (1 + q). Explain.
Scores on the ACT test have a mean of 21.1 and a standard deviation of 4.8. which is relatively better: a score of 1840 on he SAT or a score of 26.0 on the ACT test? why?
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