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A gas of unknown identity diffuses at a rate of 83.3 mL/s in a diffusion apparatus in which carbon dioxide diffuses at the rate of 102 mL/s. Calculate the molecular mass of the unknown gas.
Suppose that the conclusion from an ANOVA is that the null hypothesis is rejected, in other words that the 6 population means are not all equal. What should we expect?
To test whether there is any association between two variables using Chi-Square test for independence.
A consumer organization wants to know if there is a difference in the price of a particular toy at three different types of stores. The price of the toy was checked in a sample of five discount toy stores, five variety stores, and five department ..
Calculate a 95% confidence interval on the average weight of packaged mustard seed. Explain very carefully to the packaging workers what the 95% confidence interval numbers mean. Include your Excel output. Is there anything you would want to note ..
a fair coin is flipped until heads or tails have occurred twice in a row. find the expected number of flips. show all
high school seniors with strong academic records apply to the nations most selective colleges in greater numbers each
Use the given data set to solve the following problems: 50, 55, 60, 60, 70, 80. Find the mean, median, and mode of the given Data set. Suppose that we increase each value by 4, recalculate the measures of the centre
A study was carried out to understand the amount of time put in by the students in three management institutes. One hundred students from different institutions were surveyed. Information regarding the hours put in by the students per week is summ..
You are running a chi-squared test. If you have 5 groups with 3 characteristics each, what would your critical value be with an alpha of .25? a . Between 0 and 3.0
For a sample of 12 items from a normally distributed population for which the standard deviation is s=17.0, the sample mean is 230.8. At the 0.05 level of significance
Based on data from the college board assume SAT scores are normally distributed with a mean of 1518 points and a standard deviation of 325 points? If a sample of 100 students is taken taken what is the mean and standard deviation of the distribut..
To compile the record chart it is necessary to know the correct average weekly sale to within 1% of its true value. How large a sample size is required?
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