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What are sampling techniques and discuss about sampling techniques? Write sources from where you have got the answer(mandatory)
a certain office building infrequently experiences power outages. it is known that the probability of a power outage on
A company produces calculators in batches of 64. Four out of every 100 calculators are defective. State the random variable for this situation and list its values.
Construct a 99% confidence interval for the proportion of customers favoring underground installation.
a social psychologist wants to know how long people will wait before responding to cries for help from an unknown
According to a recent survey, 275 of 400 middle-aged Americans said they used the Internet regularly. 140 of 400 senior citizens said they used the Internet regularly.
major league baseball mlb uses a best of 7 series to determine the winner for the finals the winner must win 4 games.
a fair ten-sided die is rolled once. event a is the event that a number less than 7 is rolled. event b is the event
4 7 7 5 2 9 7 6 8 5 8 4 1 5 2 8 7 6 6 9. (a) Determine three quartiles and (b) draw box-and-whisker plot of the data.
nile superstore is conducting a survery of consumer preferences for a new wireless e-book reader. 160 people reveals
Write the hypothesis statement. What distribution are you using?
The lifetime of African Cichlids is unknown but the sample of 75 cichlids were taken and its mean life time was 5.2 years with a margin error of 420 days for 95% confidence a) What is the 95% confidence interval for the lifetime of the African fish..
You are picking up apples from a tree in a park. You are interested in estimating the mean weight of all apples in the park. Unfortunately you have only been able to find seven apples so far. Can you use the Central Limit Theorem to aid in your es..
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