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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? (Round off to the nearest percent.)
How could your answer in question (a) change if you knew returns followed a skewed distribution instead of a normal distribution? Explain briefly.
The data follow. Males Females 27 25 25 29 19 18 10 23 16 20 22 15 14 19 (a) What statistical test should be used to analyze these data?
A market researcher wants to find the 99% Confidence Interval for the average number of hours people spend online each day.
The standard deviation is estimated to be 0.279. Use the 99% level of confidence.
If 25 men aged 18-24 are arbitrarily chosen, determine probability that their mean serum cholesterol level is between 165 and 200.
A random sample of 11 health maintenance organizations (HMOs) was selected. For each HMO, the co-payment (in dollars) for a doctor's office visit was recorded. The results are as follows:
1st a confidence interval is constructed without utilizing the finite population correction factor.
The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles. The standard deviation of the mileage is 5,000 miles.
Using the following data, test the question that an equal number of Democrats, Republicans, and Independents voted during the election. Test the hypothesis at the .05 level of significance.
Test hypothesis that Site B is more successful in initiating acquaintances than Site A. Use alpha = .05.
With a=.05 and a sample of n=15 in a repeated-measures study comparing two treatments, what are the t statistic boundaries for the two-tailed critical region?
Create a drawing or plan for a 2 x 3 experimental design that would lend itself to a factorial ANOVA. Be sure to identify the independent and dependent variables.
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