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A survey revealed that 21.5% of the households had no checking account, 66.9% had regular checking accounts, and 11.6% had NOW accounts. Of those households with no checking account 40% had savings accounts. Of the households with regular checking accounts 71.6% had a savings account. Of the households with NOW accounts 79.3% had savings accounts.
The probability that a randomly selected household with a savings account has no checking account is?
Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance and (d) standard deviation of probability distribution and (e) interpret results in context of real life situation.
Determine probability of waiting less than 12 minutes between successive speeders. By using cumulative distribution function of X.
Taking α to be 0.05, what is/are the critical values associated with testing your hypothesis?
The table below lists the number of audience impressions (in hundreds of millions) listening to songs and the corresponding numbers of albums sold (in hundreds of thousands).
If 900 users visited the site, would the probability that more than 250 of them click on an ad be higher or lower than the answer found in part
Suppose the Doctor would be content with 95% confidence. How does the decrease in confidence affect the sample size required?
Given that a Brand A battery just failed, what is the expected value of the time we wait until the next Brand B failure?"
Give a brief definition and an example of the following: a. Descriptive Statistics b. Inferential Statistics
This question is asking for speculation about the possible results of a study if we change the size of the population. It all depends on unknowns such as how representative the 100 adults are of the population.
Shopper Trak is a hidden electric eye designed to count the number of shoppers entering a store. When two shoppers enter the store together one walking in front of the other, the following possibilities apply.
Determine the regression equation. Determine the coefficient of determination. Do you think Mr. Profit should be satisfied with using the size of the offering as the independent variable?
The following data shows the packages gathered for delivery for ten days and the proportion of packages received not delivered to the customers at expected time.
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