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For this assignment employ the data below which was taken from the previous online class.
Student Age
1 422 353 294 335 336 297 268 489 3710 2711 4712 26
Find out if the data is qualitative or quantitative, continuous or discrete, and determine the level of measurement. Decide how to organize the list, and create a table including frequency, relative frequency, cumulative frequency, and cumulative relative frequency. Use the frequency distribution to create a histogram and a frequency polygon plot for the data. Finally, describe how the data could be presented using other graphical techniques, such as line charts, bar charts, or pie charts.
Probability based on normal distribution. Suppose among X has a normal distribution, and find the indicated probability.
A human factors psychologist studied three computer keyboard designs.
what will be the standard deviation of the share price if it is assumed that there is a 95% probability that the value will be at least 64?
We have a deck of 52 playing cards. What is the probability of drawing?
Using six-step critical value approach, at the 0.05 level of significance, is there evidence that population mean delivery time has been increased below previous population mean value of 25 minutes?
To test whether the population mean is less than a specified value.
Conduct the following test using 95% level of confidence.
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
Do the data indicate a significant difference? Test with ∝ = .05.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Test hypothesis that both propellants have same mean burning rate. Utilize α=0.05. Compute the P value.
Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents
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