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In an experiment, subjects are required to generate a "yes" or "no" decision. The probability of 'Yes' being correct is 50%. The observed probability of yes decisions is 70%. What is the probability that any "Yes"-outcome question will be answered correctly? Illustrate computational details of answer briefly.
Determine the probability that the sample mean is 20 or higher? What is the probability that the sample mean falls within 2 points of the population mean?
As sample size increases, the standard error of M _______________ .
X is a normally distributed random variable with mean 10 and variance 24. a. Find P(X bigger 14) b. find P(8 smaller X smaller 20)
Find the probability that a women develops breast cancer given that she has a family history of breast cancer._____________
Carry out an ANOVA and describe in detail in a BPS-formatted Results section:
Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.
What control chart(s) would you use for this data and what are the final control limits?
To find the necessary sample size to achieve the given level of accuracy of prediction.
Finding the probability of sample and describe the sampling distribution of the sample means.
Nine percent of undergraduate students carry credit card balances greater than $7000. Presume 10 undergraduate students are selected randomly to be interviewed about credit card usage.
The dean of students believes that teh costs are greater this semester. What is the test value for this hypothesis?
Find the critical value z that corresponds to the given confidence level of 90%.
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