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Going to the prom.
Tonya wants to estimate what proportion of her school's seniors plan to attend the prom. She interviews an SRS of 90 of the 750 seniors in her school and finds that 36 plan to go to the prom.
Identify the population and parameter of interest.
Check conditions for constructing a 99 % confidence interval for the parameter.
Construct a 90% confidence interval for p. Show your method.
Interpret the interval in context.
Demonstrate how to accurately interpret output for the chi-square test. That leads you to nonparametric tests, one example of which is the chi-square.
a) State the null and alternate hypothesis. b) Determine which distribution to use for the test statistic, and state the level of significance.
Let X~ Negative-Binomial(r ?) and Y ~ Negative-Binomial(s=?, with X and Y chosen independently. Let Z = X+ Y. What will be the distribution of Z?
the thickness of eight pads designed for use in aircraft engine mounts are measured.the measurements are 41.83 42.68
Fast food is often considered unhealthy because much of it is high in both fat and sodium. But are the two related? Here are the fat and sodium contents of several brands of burgers. Analyze the association between fat content and sodium.
Utilizing the 5% level of significance as there was a significant change in cholesterol level. Their total cholesterol levels before also after the diet.
Should you purchase the bond if the yield to maturity on a comparable-risk bond is 8 percent?
Overall standard deviation versus the pooled standard deviation. The last line of the summary tabe given in Exercise gives the mean and the standard deviation.
Finding appropriate z- and t-scores is important when constructing confidence intervals. Confidence intervals allow one to estimate important population parameters such as population mean, population proportion, population standard deviation, etc.
Write introduction to SPC (STATISTICAL PROCESS CONTROL)? Describe the use of SPC tools used at D2D?
Significance test for apartment rents.- What is the standard error of the mean?- What are the degrees of freedom for a one-sample t statistic?
Consider the auction algorithm applied to assignment problems with benefits in the range [0, C], starting with zero prices.
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