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The weekly wages paid to the employees of a small company that supplies part-time laborers averages $700 with a standard deviation of $400.
A. If the weekly wages are normally distributed, estimate the fraction of employees that make more than $300 per week?
B. If every employee receives a year-end bonus that adds $500 to the paycheck in the final week, what is the distribution of paychecks for the last week?
C. If every employee receives a bonus equal to 5% of their yearly wage, how does that change the distribution of wages in the final week?
Identify the following as either (a) observation, (b) parameter, (c) population, (d) sample, or (e) statistic: All employees at that place of employment.
find the value of the linear correlation coefficient r. x 22.6 36.6 15.6 35.0 47.5 y 7 6 6 2 6 a 0 b -0.478 c
Find the sample size for the 95% confidence interval used to estimate the population proportion.
a factory produces 1400 beams a day which are on average 2.5 defective. find the probability out of 70 beams inspected
What assumptions are required in using the one-way ANOVA?- explain the meaning of each term in the equation, then use the appropriate terms from the equation in presenting and explaining the null hypotheses to be examined.
Construct and interpret an R-chart for the data in Exercise 11.21 (p. 668). a. Calculate and plot the upper control limit and, if appropriate, the lower control limit
how is the shape of the binomial distribution changed for a given sample size n as p is increased? hint let n25 and use
The weights at birth of five randomly chosen baby Orca whales were 425, 454, 380, 405, and 426 pounds. Assume the distribution of weights is normally distributed. Find a 95% confidence interval for the mean weight of all baby Orca whales. Use tech..
If a soccer game ends in a tie, it goes into a penalty kick shootout in which each team chooses five players to take penalty kicks. The team that makes the most subsequent penalty kicks wins the game.
One advantage of the repeated measures ANOVA is that it eliminates "individual differences" as a source of variability. Explain why there are no individual differences in the numerator and in the denominator of the F ratio.
Over the same period the average /maximum temperature in Dublin was 6.2 degrees Centigrade. The standard deviation was 2.9. How to compute the variance of temperature in Boston.
A group of workers on a manufacturing assembly line type information into a computer. They take a training class on how to use a computer, especially as related to data entry.
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