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Suppose cholesterol levels of adult women have a mean of 188.9 and SD of 20.9. What is the probability that a randomly selected adult woman has a cholesterol level between 161.73 and 232.79?
5% of adult women have cholesterol levels higher than what?
5% of adult women have cholesterol levels lower than what?
Answer fully and show your work to get points.
a) Explain why it would be hard to take a Simple Random Sample? b) Describe how to take a cluster sample of chocolate chip cookies.
a. Is there evidence the mean amount is different from 1.0 gallon (alpha= 0.01)? b. Compute the p-value and interpret its meaning. c. construct a 99% confidence interval estimate of the population mean amount of paint.
Identify a decision process within your work or business interests that could be resolved based on data.
the probability that a region prone to hurricanes will be hit by a hurricane in any single year is 15 . what is the
If a fair six-sided die is rolled 1200 times, find the probability that an even number will occur at most 620 times.
the makers of a soft drink want to identify the average age of its consumers. a sample of 55 consumers was taken. the
How many dieters must be surveyed if we want to be 95% confident that the sample mean weight loss is within 0.25 pound of the true population mean? Assume that the population standard deviation is known to be 10.6 lb.
A cell phone company collects data from a random sample of 500 households. The results indicate that 135 of the households would add an extra cellular number, provided it was offered at a reduced monthly cost.
Suppose that population variances from both conditions are equal is there evidence that treatment decreases surface hardness of steel plates?
Develop a 95% confidence interval for the proportion of the population of adults who feel customer service is better today than it was 2 years ago.
Does the Southside qualify for the employment assistance program and provide the city council with a recommended course of action based on this result.
Compute the coefficient of multiple determinations.
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