Create confidence interval for proportion of all depositors

Assignment Help Basic Statistics
Reference no: EM13141657

Of 44 bank customers depositing a check, 19 received some cash back.

(a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (Round your answers to 4 decimal places.)

Reference no: EM13141657

Previous Q& A

  Explain power factor correction

Power factor correction, Three parallel impedances in rectangular form as follows

  What are some marketing objectives for a music festival?

What are some marketing objectives for a music festival?

  Amortization expense for the patent

Waves Company purchased a patent for $170,000 at the beginning of 2011, and estimated that its expected useful life was 10 years. The patent has a legal life of 17 years. What amount should be recorded as amortization expense for the patent in 201..

  What will happen if the volume of the container is reduced

A reaction vessel contains these compounds at equilibrium. What will happen if the volume of the container is reduced by 50% at constant temperature?

  Net income and free cash flow

In order to sustain operations and generate sales and cash flow, the firm required to make $1250 of capital expenditures on new fixed assets and to invest $300 in net operating working capital. By how much did the firm's net income exceed its free..

  Determining amount of construction costs incurred

Richman Company for $30,000,000. The following details pertain to the contract: Percentage of completion Estimated total cost of contract Gross profit recognized to date At December 31, 2007 25% $22,500,000 1,875,000 At December 31, 2008 60% $25,0..

  Find likelihood that mean of body temperatures is lower

Is a body temperature of 99.00F unusual? Why or Why not? d)fifty adults are randomly selected. What is the likelihood that the mean of their body temperatures is 97.98F or lower?

  Explain power factor improvement

Power factor improvement, An industrial user has a number of machine tools which are driven by three phase induction motors. during a particular shift, the power factor of the combined load can vary between 0.65(100 KVA load) and 0.81 (20 KVA) loa..

  What is the mass of sugar

What is the mass of sugar in 735g of a 19.85% sugar solution?

  Mcg attendance

Produce a scatter plot of MCG attendance (dependent variable) against combined club membership (independent variable) and comment on the apparent relationship between these variables.


Write a Review


Similar Q& A

  Probability of type one error

The firm has already decided that any sample mean below 78 or above 82 will signal the workers that the process is not working properly.

  Can the cable manager conclude that there is a difference

If the standard deviation is $10,000, can the cable manager conclude that there is a difference? Test at alpha = 0.10.

  Compute three period moving average for period four

Given the following data on the number of pints of ice cream sod at a local ice cream store for a 6 period time frame. Compute a 3 period moving average for period 4

  Explain potential pitfall for a researcher

Which of the following would NOT be considered and potential pitfall for a researcher? Unconscious bias on the part of the researcher

  Approximating probability using standard deviation of sample

Sample of size 26 was taken from normal population with standard deviation 1.697. Approximate the probability that standard deviation of sample is greater than 1.23.

  Cumulative relative frequency-plotting the ogive curve

The number of items rejected daily by a manufacturer because of defect for the last 30 days are 22, 21, 8, 17, 25, 20, 18, 19, 14, 13, 11, 6, 21, 23, 4, 19, 11, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 9. Complete this frequency table for the..

  How confidence intervals will change-standard deviation

Describe how the confidence intervals will change depending on whether the population standard deviation is known or unknown.

  Using probability in court trials

What is the probability that a single randomly selected juror from Hidalgo County is Mexican-American? Explain briefly. What is the probability a single randomly selected juror is not Mexican-American? Explain briefly.

  Null hypothesis for equal levels of support

A poll found that 38% of male voters and 46% of female voters support a particular candidate. To test whether this candidate has equal levels of support between male and female voters, the null hypothesis should be

  Explain is there enough evidence to reject the claim

Is there enough evidence to reject the claim that the average cost of a home in both locations is the same? Use α = 0.01. Clearly mark each of the five steps in hypothesis testing.

  Test claim that treatment is independent of the reaction

At the 0.05 significance level, test the claim that the treatment (drug or placebo) is independent of the reaction (whether or not headaches were experienced).

  Distribution of the amount spent

A major department store chain is interested in estimating the average amount its credit card customers spent on their first visit to the chain's new store in the mall.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd