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We have a sample of 36 cola cans that contain an average of 12.29 oz, but this time let's assume that we don't know sigma, the standard deviation of the underlying probability distribution. However, we have computed the sample standard deviation, which equals 0.09 oz. Once again, how do we obtain a 95% confidence interval for the population mean?
For starters, what distribution do we use?
assume the 67 of the cars on a particular freeway are traveling faster than 70 miles per hour. a random sample of 15
If p is the probability of Event 1 and (1-p) is the probability of Event 2, based on the expected returns, for what values of p would you select A? B? C? Values in the table are payoffs.
Computing the probability values for the given discrete distribution - What is the probability that you did not shake hands with a person with the flu
Find the probability (type answer as an integer or simplified fraction) of a couple having a baby boy when their fifth child is born, given that the first four children were all boys.
State the hypotheses. (c) State the decision rule and sketch it. (d) Find the test statistic. (e) Make a decision. (f) Find the p-value and interpret it.
Does dichotomizing the dependent variable (i.e. logistic regression) decrease power in relation to a continuous dependent variable?
The middle five weeks, and 60% during the last 5 weeks. Would a time-series graph of this data be appropriate? Give a reason for your answer.
a researcher conducted an experiment on the effects of a new multivitamin on energy level with a control group received
Diastolic blood pressure are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12.
The student body of a large university comprises 60% female students. Elucidate what is the probability that the students in the sample exactly two are female?
A bank has determined that the monthly balances of savings accounts of its customers are normaly distributed with an average balance of $1200 and standard deviation of $250.
The average cost of a one bedroom apartment in a town is $550 per month. What is the probability of randomly selecting a sample of 50 one bedroom apartments in this town and getting a sample mean of less then $530 if the population standard deviat..
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