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1) Public health officials claim that people living in low income neighborhoods have different Physical Activity Levels (PAL) than the general population. This is based on knowledge that in the U.S., the mean PAL is 1.62 and the standard deviation is 0.46. A study took a random sample of 43 people who lived in low income neighborhoods and found their mean PAL to be 1.52. Using a one-sample z test, what is the z-score for this data? (Answer to 2 decimal places)
2) What is the critical value of z in the previous question? Report the critical value CLOSEST to your calculated z-score. (Answer to 2 decimal places.)
Summarize the NSC concentrations graphically and numerically for each type of forest. How do dry forests compare to moist forests in terms of NSC concentrations?
Your company sells exercise clothing and equipment on the internet. To design the clothing, you collect data on the physical characteristics of your different types of customers.
What is the probability that a worker chosen at random will have an age greater than or equal to 30 and less than or equal to 39?
Compute a confidence interval for the difference in population means and assume x is normally distributed in the populations and the variances of the populations are approximately equal.
What is Peter's median grade point at graduation? What is the shape of the grade point distribution?
Assume that your students are a sample of all fourth graders in your state and you can use your student data to test some ideas. What is the major problem with your assumption.
The 2010 Chevrolet Camaro with an eight-cylinder engine and automatic transmission has a combined gas mileage of 19 mpg. What percent of all vehicles have better gas mileage than the Camaro?
Gives the exact chance the total time is more than 16 minutes. 5) 6.14 Comment on the shape, what distribution is a reasonable t? 6) 6.30 Comment on the shape, same as the stef and leaf?
Evaluate the factor effects. Find out which factors are significant in explaining yield.
Write a sample result section, discussing your data screening activity (this section should be in APA format).
Each inspector makes his or her inspection at a different time. What is the probability that at least one inspector will find a defective widget?
FBI Report do greater universities that tend to have more property crime. Keep a scatter diagram also sketch the line you think best fits the data.
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