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A national report claims that 70% of people who graduate high school enroll in college. 30 out of the 50 people (who graduated high school) reported that they were enrolled in college. Can you prove their claim that 70% of people who graduate high school enroll in college? Use a .05 level of significance. Formulate the decision rule. (use z or t of -1.54)
Produce a frequency distribution for these data. Convert the frequency distribution into a probability distribution using the relative frequency assessment method.
At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?
A test was conducted to determine whether gender of a spokesperson affected the likelihood that consumers would prefer a new product.
How does your sample compare to this theoretical distribution of sample means and what are the mean, variance, and standard deviation of the observations in your sample?
Recent studies have shown that the super-cooling temperature of terrestrial frogs frozen at -6°C has a relative frequency distribution with a mean of - 2°C and a standard deviation of 0.3°C (The first of these studies was reported in Science, May ..
Compare and contrast the characteristics of parametric and non-parametric test methodologies. Give examples of when to use each.
Jill constructs a test to measure a personality state. The test consists of multiple items which sum up to indicate the degree of the trait that is present.
when an instant replay system for tennis was introduced for a tournament men challenged 460 reference calls and 184 of
Determine the control limits for the mean and the range. Plot the control limits for the mean outside diameter and the range.
An online book store wants to determine if there is an association between coupon redemption and gender. After a special coupon broadcast to its reward members, the following data on coupon redemption at check out were collected.
system functioninga system has two components that operate in parallel as shown in the following diagram. because the
Refer to the Heating equipment data set in Appendix C.8 .The observations are listed in. time of der. Develop a reasonable predict of model for the monthly heating equipment order s;' Potential predictors include new homes for sale. current m..
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