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1) Calculate the MEAN and STANDARD DEVIATION for the distribution below:
X
0
1
2
3
4
P(X)
0.24
0.41
0.26
0.08
0.01
2) In a particular game a person wins $1 if they roll a 2 or a 6 on a regular cube die. The win zero (0) if they roll an off number - they win $10 if they roll a 4. What is the expected value of the roll?
If the sample standard deviation of the sample was $630 also the sample size was 50. Findout the 90% confidence interval of true mean.
Be certain to mention the direction of the relationship, the strength of the relationship, and whether our findings are statistically significant
Compute a 95% confidence interval for the mean using the formula and where is the mean of the ten random numbers.
For any distribution the score that separates the highest 10% from the rest of scores is called.
Calculate the population mean and population standard deviation.
Assume that the smiling time of eight-week old babies, in seconds, follows a uniform distribution between 0 and 23 seconds, inclusive. This means that any smiling time from 0 to and including 23 seconds is equally likely.
Find the probability that in a given year,a) Exactly one major hurricane will strike the U.S. mainland
Researchers are studying the absorption of two drugs into the bloodstream. Each drug is to be injected at three dosages. There are 24 people in the study, and they are randomly divided into six groups.
There are three flight phases. At α = 0.05, is the cockpit noise level independent of flight phase?
Run an ANOVA using only groups 1 to 6 (You can hide group 7 from the analysis by data followed by select cases and then you filter out group 7 by if GROUP~= ). Also run the posthoc tests LSD and Bonferroni.
The mean number of passengers per flight is 160 with a standard deviation of 20. The aircraft used for the route has 200 seats.
Determine the probability that the project will be completed in 80 days or less.
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