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In basketball, a player's Free Throws Percentage (FT%) is expressed as a number between 0 and 1, which represents the proportion of free throw attempts that are successful. In the NBA, FT% is normally distributed with a mean of 0.721 and a standard deviation of 0.082.
Which percentage of NBA players have a FT% lower than 0.784?
Create a hypothesis and perform a series of tests to determine if there is any fundamental difference in the findings.
What would be a good example of a null and alternative hypotheses for a decision relevant in life? What Type I and Type II errors could occur with your decision-making process?
Describe the data scales best suited for presentation in a pie chart. How effective are the pie charts that often accompany a newspaper article in explaining the statistics used in the article?
A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be taken. The probability that the sample mean will be larger than 82 is?
The display represents Excel output for an ANOVA analysis with σ = 0.05.
How would I go about finding a 95% confidence interval for the population mean if a sample of size 20 has a mean of 18.2 and a sample standard deviation of 3.6?
Does a regression model imply causation? Why or why not? Provide an example which provides and independent and dependent variable from your place of work.
For the following population of N=10 scores 14,6,8,3,9,12,1,6. Draw the histogram showing population distribution. Locate value of population mean in your sketch and make estimate of standard deviation.
A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He tests 10 children selected at random and finds that their mean attention span is 33 minutes with a standard deviation of 6 minutes.
Does the weight of a vehicle affect the gas mileage? The following random sample was collected where x = weight of a vehicle in hundreds of pounds and y = miles per gallon.
Determine probability of generating six digits and getting code consisting of 1, 2, 3, ..., 6 if each digit can be repeated?
A fair coin was flipped three times and landed heads three times. What is the probability of a head on the next toss?
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