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Students working part-time at the Gabba walk around the stands selling hot dogs and meat pies on commission. They know that the weather affects the value of sales. On a cold night, they can make $948 in sales, while on a cool night they can make $742 in sales. On a mild night they can make $648 in sales.
If the probabilities for the first two scenarios are 0.19 and 0.37 respectively, then find the average value of sales in dollars. (two decimal places)
According to genetic theory, a particular cross of two cultivars of sorghum should produce plants with red, yellow, or white seeds in the proportions 9/16, 3/16 and 1/4. Data from an experiment yielded the following results.
Test, at the 5% significance level, whether the average cost-to-income ratio amongst all JSE companies adheres to the rule of thumb. Formulate the null and alternative hypothesis and interpret the findings.
Identify the point estimate of the average number of available hotel rooms in this lesson from each sample. Construct and Interpret a 95% confidence level for the true mean number of available hotel rooms, based on the point estimate of each sampl..
Assuming the persons surveyed to be a simple random sample of U.S. adults, construct a 95% confidence interval for π = the population proportion of U.S. adults who would have given the same answer if a census had been taken instead of a survey.
What goes up must come down. The price of food has been going up for years. Therefore, it will surely come down soon.
The faculty senate at a large university wanted to know what proportion of the students thought that a foreign language should be required for everyone.
Determine Hernandez's optimal shipping quantities so as to minimize total transportation costs.
The weekly incomes of a large group of executives are normally distributed with a mean of $2,000 and a standard deviation of $100.
Estimate p from repeated pairs of y1 and Y2 and (b) use the sums and difference of the responses.
Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.
Your manufacturing process makes parts such that each part meets specifications with probability 0.98. You need a batch of 250 parts that meet specifications.
Gather data by observation that can be easily categorized with finding frequency for each category (number of blue cars, red cars, white cars
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