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1. For the following questions, a calculated probability of equal to or less than 0.05 is considered significant.
a. Is it significant to get a 12 when a pair of dice is rolled? Show evidence and discuss.
b. Assume a study of 500 randomly selected school bus routes revealed 480 arrived on time. Is it significant for a school bus to arrive late? Show evidence and discuss.
Probability based on a random experiment - What is the probability of not randomly generating your cousin's telephone number?
Now they need your help to determine if the mean number of news shows watched in your neighborhood is similar to the national mean.
Assume that the measurements came from a normal distribution. The variability of the manufacturing process is unknown means the same as the standard deviation is unknown.
Define "Type I error" in your own words. When should we use the t distribution? How do we find the degrees of freedom when using the t-distribution to estimate or test the mean of a sample from a single population..
Use this information to construct a probability table, and then calculate each of the following probabilities:
Construct a survival curve based on the product-limit estimate and estimate the median survival time
Enter relative proportions of the 3 samples in order (20,50,30) in "Expected values" area.
Ophelia O'Brien, VP of Consumer Credit of American First Banks (AFB), monitors the default rate on personal loans at the AFB member banks.
There is not enough information to answer the question, the formula requires knowing the population standard deviation for Mark and Debbie, and we were not given this information.
Form the column of differences and find the mean and standard deviation of this column of numbers.
JBGHI demands a sample large enough to ensure an error of ± 2% with 90% confidence. What is the necessary sample size?
An op amp having a slew rate of 10 V/μs is to be used in the unity-gain follower configuration, with input pulses that rise from 0 to 2 V. What is the shortest pulse that can be used while ensuring full-amplitude output? For such a pulse, describe..
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