Need help creating a null and alternative hypothesis for the following problem:
Problem: Case Closure time is very high.
Practical Hypothesis: Error logging is present in the part of the product in which the case was raised
running a 2 sample test assuming equal variances to test to see if error logging plays a factor in case closure time.
The appropriate hypotheses for the problem statement would be as below.
Null Hypothesis H0: Average closure time for cases with error logging is equal to the average closure time for cases without error logging.
Alternative Hypothesis H0: Average closure time for cases with error logging is greater than the average closure time for cases without error logging.
Need help creating a null and alternative hypothesis for the following problem: Problem: Case Closure time...
Suppose that the null hypothesis of an experiment is and the alternative is . Running the experiment gives the test mean and with a standard error that was estimated from the sample. Under what circumstances would you reject the null hypothesis?
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Suppose that the null hypothesis of an experiment is and the alternative is . Running the experiment gives the test mean and with a standard error that was estimated from the sample. Under what circumstances would you reject the null hypothesis? Select one: a. lies within the 95% percent confidence interval around , based on the normal distribution and . b. does not lie within the 95% percent confidence interval around , based on the t-distribution and with degrees of...
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Need help getting the null and alternative. As well as answer to
part 2.
Problem: Suppose we know the average number of cavities by age 30 years old for the US population is Approximately Normal -Mean-7 Standard deviation σ --3 Residents of Happytown have been adding fluoride to their water for decades and would like to know whether this has lessened the incidence of cavities. The parameter of interest is u-average number of cavities for all Happytown residents at age...
Part A) State the null and alternative hypothesis for each of the following scenarios Part B) State the hypothesis test (one sample t-test, one sample z-test, two sample t-test, two sample z-test, paired test) that applies to the situation A) Weekly data on the percentage of damaged inventory for 10 weeks before and 10 weeks after the implementation of new environmentally friendly techniques meant to reduce waste. You wish to see if the green management techniques have significantly improved practices....
mean of population = 1.68
I already have the null and the alternative hypothesis
I only need help with 2, 4 and 5
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