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A senior loan officer for Whitney National Bank has recently studied the bank's real estate loan portfolio and found that the distribution of loan balances is approximately normally distributed with a mean of $155,600 and a standard deviation equal to $33,050. As part of an internal audit, bank auditors recently randomly selected 100 real estate loans from the portfolio of all loans and found that 80 of these loans had balances below $170,000. The senior loan officer is concerned that the sample selected by the auditors is not representative of the overall portfolio. In particular, he is interested in knowing the expected proportion of loans in the portfolio that would have balances below $170,000. You are asked to conduct an appropriate analysis and write a short report to the senior loan officers with your conclusion about the sample.
find and attach a cross tabulation of data that is of interest to you. write a question for the following along with
in a multiple regression mode the value of the coefficient of multiple determinationhas to fall between -1 and 1.has to
Find the probability that the mean age of those doctors is less than 53.00 years. Assume that the variable is normally distributed.
A certain type of tomato seed germinates 90% of the time. A backyard farmer planted 25 seeds. What is the probability that exactly 20 germinate?
a weight lifter puts an x-pound weight on each side of a bar. a weight 5 pounds heavier than the first is then added to
Discuss the utility of the graphic method of presenting statistical data. What points should be taken into account in the construction of graphs? Prepare more than ogive curve with imaginary figures.
during one of the first beer wars in the early 1980s a taste test between schlitz and budweiser was the focus of a
Is it sensible to conclude that this set of n=16 people is not representative random sample of registered voters?
q1 if light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500
A "wild safari" park allows visitors to drive their cars through over 400 acres to see more than 1000 animals roaming freely. The park claims that the probability of some car damage by an animal during a safari drive-thru is 0.65. Suppose 20 cars ..
Want a sample size of about 60 (30 controls and 30 cases). At 5% significance and 80% power.How do i determine the standard deviation and mean difference.And how do i arrive at the 60? my study design is case-control.
a. Is there evidence the mean amount is different from 1.0 gallon (alpha= 0.01)? b. Compute the p-value and interpret its meaning. c. construct a 99% confidence interval estimate of the population mean amount of paint.
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