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A national survey indicated that 30% of adults conduct their banking online. It also found that 40% are under the age of 50, and that 25% are under the age of 50 and conduct their banking online.
a) What percentage of adults do not conduct their banking online?
b) What type of probability is the 25% mentioned above?
c) Construct a contingency table showing all joint and marginal probabilities.
d) What is the probability that an individual conducts banking online given that the individual is under the age of 50?
e) Are Banking online and Age independent? Explain.
Run a multiple regression and interpret all the findings, R 2 , F, IV coefficients, and the intercept. Then in paragraph format, identify and report the following:
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The confidence interval must be less than 5 percentage points i.e. the confidence interval should extend at most 2.5 percentage points above and below the sample proportion?
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Analyze the data to make conclusions. Perform test(s), interaction plot and post hoc multiple comparisons if needed.
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In 1995 the percentage of the labor force that belonged to a union was 14.9. If five workers had been randomly chosen in that year, what is the probability that none of them would have belonged to a union?
the journal of american medical association reported on an experiment intended to see if the drug prozac could be used
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a group of 49 randomly selected students has a mean age of 22.4 years with a standard deviation of 3.8. construct a 98
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