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1. My bootstrap distribution after 1000 resamples is shown in the histogram and summary statistics below.
Based on this information, which would be better, a t distribution interval or a bootstrap percentile interval?A. the bootstrap t intervalB. the bootstrap percentile intervalC. Either would be acceptable.
2. An advantage of the permutation test over the t test for a difference in means is thatA. it gives accurate P-values even when the distributions are not normal.B. it tests a more general hypothesis.C. Both choices are true.
3. Permutation tests cannot be used forA. tests when we believe the two populations differ under the null hypothesis.B. matched pairs designs where we believe only random differences occur.C. testing relationships where the null hypothesis says no relationship exists.
According to the historical data, the life expectancy in the United States is equal to the life expectancy in Japan. A new study has been made to see whether this has changed.
Assuming the weight of cereal is normally distributed, determine the likelihood that a package will contain more than 12.2 ounces. Calculate using megastat.
It has been said that from the point of view of the general population, Type I errors are particularly undesirable. This has been used as a justification for setting alpha at such low levels as .05 and .01.
A population whose shape is unknown has a median of 75. You selected a sample of 40. The standard deviation of the median is 5. Calculate the probability that the median of the sample or average medians is:
What effect has the transformation had on the lowest exam mark and what effect has the transformation had on the highest exam mark - STATS 201/8 Data Analysis
Write down the name of 4 parts of the regression equation.
Given this information, what would sampling error be if sample including seven values in top row were used to calculate sample mean?
Calculate the population mean margin of error for a 90% confidence interval when sigma is 4 and sample size is 36. Standard IQ test has mean of 98 and standard deviation of 16.
The negotiation will end successfully? After 4 hours? After 8 hours? How does the precentage likelihood of a successful negotiation change over the course of time?
The probability Mary will receive an A in a class is 0.62. Assuming independence, if she is taking 5 classes this semester, calculate the probability she will receive exactly 3 A's.
The numbers of years served by selected past members of the U.S. Supreme Court is listed below. Find the percentile rank for each value. Which value corresponds to the 40th percentile? Construct a boxplot for the data and comment on their shape.
You can just switch on the heater of your swimming pool / sauna / living room etc. But if you want to be calculate what time you should switch it on
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