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h-p is said to be the leading seller of pc's in the U.S WITH 27% share of the pc market. if a researcher selects 130 recent pc purchases, use the normal approximation to the binomial to find the probability that more than 39 bought a h-p computer
It took a contractor 5000 hours to manufacture their first unit of an item. If the contractor expects to achieve a 94% unit learning curve, how many hours would be required to manufacture units 76-100?
Determine whether the difference in proportions is significant at the 0.05 level.
Describe a scenario related to the final project in which you would use repeated-measures ANOVA. Describe a scenario related to the final project in which you would use MANOVA.
Why might supposition of normal population be doubtful? Problem arises when?
Explain the terms parameter and statistics. Make sure the concepts of population and sample are included in the definitions.
He argues that the regression effort says people who perform very poorly in their previous job tend to perform well in their next job. Is this what the regression effect says? Explain.
How large a sample should be taken if the desired margin of error E is:
The strength of the linear relationship between two numerical variables may be measured by the
Give the 90% confidence interval for the mean score in the population of all young women.
When using dummy variables in a regression equation to model a qualitative or categorical variable, the number of dummy variables should equal to
A biologist has found the average weight of 12 randomly selected mud turtles to be 8.7 lb with standard deviation 3.6 lb. find a 90% confidence interval for the population mean weight of all such turtles.
Harrington Health Food stocks 5 loaves of Neutro-Bread. The probability distribution for sales of Neutro-Bread is listed in following table. How many loaves will Harrington sell on average?
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