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The cost of 5 gallon of ice cream has a standard deviation of 8 with a mean of 26 dollars during the summer. What is the probability that the sample mean would differ from the true mean by greater than .04 dollars if a sample of 183 5 gallon pails is randomly selected? Round answer to 4 decimal places.
A power of 0.2203 can be interpreted to mean there is a 22.03% chance of selecting a sample whose sample mean is larger than 166.3 lb.
Test the hypotheses that the average household income in the township is greater than $100,000. Hint: Start by stating the null and alternative hypotheses.
At the .05 level of significance, can we conclude that those joining Weight Reducers on average will lose less than 10 pounds? Determine the p-value.
Formulate a linear programming model for this problem.
What is the likelihood the sample mean is greater than $22.50 but less than $25.00?
Fitting of simple linear regression equation - Given the student population for a school district over the past few years, find the prediction equation for this data.
Make a stem plot for the men height data. Calculate the five-number summary for the women.
The area under a normal curve is always equal to 1, no matter what the mean and standard deviation are.
Confirm that these statements are accurate by finding the geometric mean rate of increase.
We assume that the population is approximately normally distributed. Find the confidence interval: for a confidence level of 95%:
In chi-square goodness-of-fit test when there is close agreement between observed frequency and expected frequency, chi-square test value will be small.
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.
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