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A sample of 50 days showed that a fast food restuarant served an average of 182 customers during lunchtime. The sample standard deviation was 8. Find a 96% confidence interval for the average customer count. Put your answers in interval notation. i.e. (a, b) where a is the lower bound and b is the upper bound of the interval. Be sure to round your answers to two decimal places
If you know you need a sample size of 1,063 out of 300,000 to get a 95% confidence level and a 3% confidence interval what steps would you take to get a random sample?
the assignment 4 real estate data set has information on prices that houses sold for in five different towns. we want
Show the complete ANOVA table for this test including the test statistic. The null hypothesis is to be tested at 95% confidence. Determine the critical value for this test. What do you conclude?
Arbitarily sampling one man and one woman from this population, determine probability neither is a Tay-Sachs carrier? Compute the probability both are carriers?
Can the college conclude that the students in the new program are significantly different from the rest of the freshman class? Use a two-tailed test with α=.05.
Let x be the weight of a fawn in kilograms. Convert the following x interval to a z interval. Round to the nearest hundredth. x
Ten pairs of points yielded a correlation coefficient y of 0.79. If a=0.05, which of the following statements is correct if H 0:P=0? (Do not calculate a t-value.)
Show that if the roots of the polynomial p are all real, then the roots of p' are all real. If, in addition, the roots of p are all simple, then the roots of p' are all simple.
Multiple choice question using Forecasting techniques. Which among of the following models are best suited to forecast a time series with a stable seasonality component.
find the area under the standard normal curve for the followinga pz gt 1.15b p0 lt z lt 1.58c p-1.06 lt z lt
The library is to be given 3 books as a gift. The books will be selected from a list of 16 titles. If each book selected must have a different title, how many possible selections are there.
In an industry,200 workers,employed for a specific job,were classified according thier performance and training received/not received to test independence of specific trainig and performance.The dates is
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