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A sample of 24 is known to come either from a uniform distribution over the interval (0, 10) or else from a symmetric triangular distribution over the same interval (0, 10). The sample values are
4.17
8.42
3.02
2.89
9.77
6.06
2.72
5.12
6.00
4.78
2.62
7.20
1.61
5.92
7.25
8.01
4.76
5.36
5.34
7.59
0.66
7.27
3.39
1.40
Use appropriate graphical or other EDA techniques to get an indication as to which of these distributions is the more likely source of the sample.
There is concern about the percent of on-time flights. A recent survey of two major airlines yielded the following results. At α = 0.05 test the claim that there is a difference in proportions of on-time flights.
what is the required sample size is the error is to be less than 1/2 hour with a 95% level of confidence?
At the heart of quantitative research is regression analysis. A regression model simply measures the association of two variables - variation: the dependent variable's observed value
what effect does the sample size have upon the maximum error of
If you buy a box of Wisk, the probability of getting a scoop is 97%. If you buy 9 boxes over the next several months, what is the probability of missing two scoops?
given a koi population that is 55 male and that 1 out of every 3 males is yellow while only 1 out of every 5 females is
A company has set a goal of developing a battery that lasts over 5 hours in continuous use in a sample of 42 of these batteries the mean life time was 306.25 hours with a standard deviation of 29.31
Assume half of the 200 passengers are men. What doorway height satisfies the condition that there is a 0.95 probability that this height is greater than the mean height of the 100 men?
At 95% confidence, test to determine if more than 21% of the population will like the new soft drink.
Is there evidence of a significant difference in the variance of the access read times for the three file sizes? Test at the 95% confidence level.
1. a study found that 35 of the assisted reproductive technology art cycles resulted in pregnancies. twnety-five
twenty-two volunteers at a cold research institute caught a cold after having been exposed to various cold viruses. a
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