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Question: Some students think that a 90% confidence interval contains 90% of the data. Use the list of data given (the heights of women) and count how many of the data values lie within the confidence interval that you generated based on that data. How many of the 100 data values lie within your confidence interval? What percent is this? Is this percent close to 90%?
a team of psychologists studying narcolepsy a sleep disorder characterized by sudden nodding off during the day decided
Testing for population mean - warp-breaking specification of the manufacturer at the .05 level of significance?
At a national seashore, the number of swimmers per day who require lifeguard assistance averages 4.1, on any day when 7 or more swimmers are assisted, the lifeguards receive a $20 bonus for extra effort.
Is it reasonable to say that there's a correlation between the type of car you own and the risk that it will be stolen?
Using your result obtained in g, derive for each sample in your population of samples (cf., result obtained in d) a 90% confidence interval.
Forecast 2 out of sample forecasts for the final model using following data: Final Estimates of Parameters AR 1 0.9647 0.0388 24.84 0.000.
customers arrive at a checkout counter following a poisson process with rate 12per hr.a compute the probability of
A random sample of 46 accounts yields x‾ = $16.50 and s = $2.20. Give a 95% confidence interval for the average amount of an account.
a bottling company is supposed to fill bottles with an average weight of 16 ounces. the company randomly selects
A box of nine golf gloves contains two left-handed and seven right-handed ... box without replacement, what is the probability that- (X) both gloves are right handed and (Y) one left-handed and one ... If two gloves are randomly selected with repl..
Using the .05 significance level, can we conclude that there is a positive association between the two variables?
Construct a frequency distribution of the scores.- Construct a histogram of the frequency distribution constructed in part a.
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