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In a survey of 6000 high school students, 3230 read books during the summer break. Using these sample statistics, find a 99% confidence interval for the proportion p of all high school students that read books during the summer break.
snowfalls occur randomly and independently over the course of winter. the average is one snowfall every 3 days.a what
Florida State University administers a mathematics placement test to students where they 1st enter the university.
We will test to determine if there evidence of an improvement on the final examination, at the 1% significance level. What is the alternate hypothesis?
find the p-value obtained when testing the claim that p 0.75 when given sample data resulting in a test statistic of z
A tetrahedron is a fully-symmetric pyramid-like solid, with four faces made up of equal-sized equilateral triangles. Suppose that the four faces contain different number of spots, from one spot to four spots, so that the tetrahedron may be rolled ..
Construct a first- order autoregressive forecasting equation for these data, calculate the mean absolute deviation (MAD) for the fit of the forecast values to the actual values, then use the equa- tion to forecast the PPI for 2008. Source: Bureau o..
use your calculator or other software to conduct a test of the hypothesis that mu6 vs mult6 for the following data.
Assume that a single radar unit used to detect incoming missiles has a probability of 0.90 of correctly detecting an incoming missile attack.
Suggest one psychological research question that could be answered by each of the following types of statistical test:
Number of avalanche fatalities The numbers of avalanche fatalities for the last nine seasons were reported as 1,1,1,5,5,5,5,8,10. Roughly what type of distribution is this? a. normal
Before starting the trial, a pilot study is conducted involving 7 participants. Is there a statistically significant difference in blood pressures overtime? Run the test at a 5% level of significance.
1 if we are very certain that the true standard deviation of the number of defects per screen is below 2 what sample
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