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Peter hopper, director of quality control for harley davidson, is conducting his weekly spot check of the transmission gear box of the newly introduced wind phantom series motorcycle. in his procedure, a random sample of 8 gear boxes are removed from the inventory pool of components and are checked for manufacturing defects. historically, only 5% of the gear boxes have such flaws
Consider the particle size of a particular product.
In a certain region of the country, average radar echo duration of lightning flashes is .61 sec and a standard deviation of .24 sec. Note, that these are population values. Calculate a 95% (two sided) confidence interval for the true average ..
1. introductionexplain the purpose of the study.ii. summary of data collectionidentify sample population sampling frame
State the null and alternative hypotheses
Find the probability of getting five successes out of the eight trials.
Calculate the difference for each subject, then calculate the mean and standard deviation of these differences.
1.if your data is a random sample of size n from the distribution N(4, 7), then what is the distribution of the statistic X(not Z or T)? Z?T?
Calculate the mean yearly value using the average gas prices by month found in the Final Project Data Set. What is the slope of the linear regression line and what is the Y-intercept of the linear regression line
Prepare a report using the numerical methods of descriptive statistics presented in this module to learn how the variables contribute to the success of a motion picture.
Analyze the processed data in Statistical survey.
Define the hypothesis and find the standard error of the difference in the means also find the test statistic - Determine the required sample size to be able to use a 99% confidence interval.
How are the degrees of freedom for the chi-square hypothesis tests different from those of most other hypothesis tests? In most previous hypothesis tests, the degrees of freedom have been based on sample size.
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