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At Ajax Spring Water, a half-liter bottle of soft drink is supposed to contain a mean of 520 ml. The filling process follows a normal distribution with a known process standard deviation of 4 ml. Which sampling distribution would you use if random samples of 10 bottles are to be weighed? Why?
question 1. select any two qualitative data of your survey. from your qualitative data carry out at least two
Suppose you wish to test a one-tail hypothesis where you reject H0 only in the lower tail. You calculate ZSTAT = 1.38. What is the statistical decision if you test the null hypothesis at the 0.01 level of significance?
Location along 500-ft assembly line from which to observe the work habits of the workers on the line. What is the probability that the point she selects is?
How large a sample is required to estimate the mean speed with a margin of error equal to 2 miles per hour with 90% confidence?
The sampling distribution of the average score and Suppose x' is your average pay for the 100 weeks. Then x' has approximately
Recognize sample, population, sample statistic, and population parameter: Nasonex is the drug used to treat allergy symptoms.
Determine the test statistic. At 95% confidence, test to determine if more than 21% of the population will like the new soft drink.
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level.
Run this same command several times to see how variable the reported pvalues are. How many possible treatment arrangements are there for this experiment?
bay area community college bacc has collected data comparing the starting salaries of their graduating students with
23% of college students say that they use credit cards because of the rewards program. you randomly select 10 students who say that they use the credit card because of its rewards program.
A sample of twenty automobiles was taken, and the miles per gallon (MPG), horsepower, and total weight were recorded. Develop a linear regression model to predict MPG using horsepower as the only independent variable. Develop another model with weig..
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