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Q1) 20 cans from sample of 100 cans of mixed nuts had no cashews in them.
a) Use this information to find the 95% confidence interval for proportion of cans which contain no cashews (determine to 3 decimal places).
b) Determine margin of error for confidence interval in (a)?
c) What is margin of error for confidence interval in (c)?
Find the probability that at least one subject experiences headaches. Is it unusual to have at least one of six subjects experience headaches?
There were 25 subjects included in each of the combinations of gender and smoking status. One of the variables measured was the heart rate after six minutes of exercise. A two-way ANOVA is performed with the resulting ANOVA table given below
At the .05 significance level, is there a difference in the mean number of calls per day between the two employees?
Give an example of a hypothesis test. State what the Null and the Alternative hypotheses.
Electronic baseball games manufactured by Tempco Electronics are shipped in lots of 25. Before shipping, a quality control inspector randomly selects a sample of 6 from each lot for testing. If sample contains any defective games, the entire lot i..
Evolutionary theories often, Emphasize that humans have adapted to their physical environment. One such theory hypothesis that:
The researcher found that Lincoln's educational score did not correlate with the expected variables.
Assuming the sample size of 40 can be considered as large, compute the confidence interval for a confidence level of 90%.
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
What proportion of time will it take clean-up crew 56 or more hours for cleaning plant? Define the lower and upper limits of interval.
Find the probability that a randomly selected employee earns less than $5.43.
Let X be the number of correct guesses by your friend in the 100 trials and Use the Normal approximation with the continuity correction - Which of the following might be reasonably modeled by the binomial distribution
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