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The statistics professor plans class carefully so that length of his classes are uniformly distributed between 50 and 52 minutes. Determine the probability that class will be less than 50.25 minutes.
Arbitrarily choose someone from sample. Determine the probability that they are Jewish and Democrat?
what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds True?
If probability the first truck is available is= .75, probability the second truck is available is= .50, and probability both are available is= .30, determine the probability which neither truck is available?
Data are recorded on effects of each drug. Is research division by using dependent or independent samples? Explain why?
Consider the following two columns that describe different types of data: A. Nominal 1. Qualitative B. Discrete 2. Quantitative C. Ordinal D. Continuous. The correctly paired groupings of the two columns is:
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
Test hypothesis that average price of gasoline in western states is higher than national average for Continental USA and the District of Columbia, i.e., higher than $3.74.
A company produces two products that are processed on two assembly lines. Assembly line 1 has 100 available hours, and assembly line 2 has 42 available hours.
If the sample standard deviation of the sample was $630 also the sample size was 50. Findout the 90% confidence interval of true mean.
The article can be on Descriptive Statistics, Probability and the Normal Distribution, Sampling and Sampling Distributions, Regression Analysis, or Time Series Forecasting.
Find out 90% confidence interval for mean grade of all the students in the class.
A process is out of control when:
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