Find the 95 confidence interval for the true mean decrease

Assignment Help Basic Statistics
Reference no: EM13614268

The addition of a new accelerator is claimed to decrease the drying time of latex paint by more than 4%. Several test samples were conducted with the following percentage decrease in drying time. Assume that the percentage decrease in drying time is normally distributed.

5.1 6.4 3.5 5.9 3.6 2.5 3.1 4.4

(a) Find the 95% confidence interval for the true mean decrease in the drying time based on this sample. (Give your answers correct to two decimal places.)

Reference no: EM13614268

Questions Cloud

If you assume the power plant operates on a carnot cycle : a power plant generates 150 mw of electrical power. it uses a supply of 1000 mw from a geothermal source and rejects
Based on the cost of the equipment and its lifetime it : the long life nursing home recently bought new equipment for thekitchen with the hopes of increasing food worker
You have 2 capacitors one with capacitance 103uf and the : you have 2 capacitors one with capacitance 10.3uf and the other of unknown capacitance. you connect the two capacitors
A bicycle rider rides from home along a highway and back : a bicycle rider rides from home along a highway and back along the same road in such a way that her distance from home
Find the 95 confidence interval for the true mean decrease : the addition of a new accelerator is claimed to decrease the drying time of latex paint by more than 4. several test
The flash unit in a camera uses a special circuit to step : the flash unit in a camera uses a special circuit to step up the 3.0 v from the batteries to 370 v which charges a
Wat was theauditors responsibility with respect to the : requireda. who isgeneral mills auditor? on what date did the auditor completeits audit work?b. what was
Calculate the isentropic work process 1-2s the actual work : air at mass flow rate of 10 kgs at 1 atm 300 k point1 enters an adiabatic compressor and exists at 8 atm 600 k point 2.
A shotputter throws the shot with an initial speed of 150ms : a shotputter throws the shot with an initial speed of 15.0ms at a 45.0 angle to the horizontal. calculate the

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the probability that the household has a ceiling

the u.s. energy department states that 60 of all u.s. households have ceiling fans. in addition 29 of all u.s.

  Retired workers and disabled workers both receive social

retired workers and disabled workers both receive social security benefits. what information would we need to test the

  Using p-value approach testing weight

Test whether the mean weight is less than 10 pounds. Use P-value approach.

  Least squares coded method

Using the least squares coded method, determine the equation for the straight line going through the earnings. Project, using the equation for the average hourly earnings for the year 1990

  Probability related to customers with internet access

Suppose that 98% of the customers in your market have Internet access, and you select a random sample of 500 customers. What is the probability that the sample has:

  Fishermen have suffered financial hardship

In recent years, fishermen have suffered financial hardship because of shortened fishing seasons, reduced catches and lower market prices. Moreover, fishermen have complained about price fluctuations and have called for a system of minimum prices.

  Evaluate true average lead level for california wines

The BATF wants to evaluate true average lead level for California wines to within 29 parts per billion at 95% level of confidence?

  How would you estimate the sample size

You work at a facility and want to perform an assessment of your safety culture – this would involve multiple topics of questions expecting answers like agree, tend to agree, not sure, tend to disagree, disagree.

  Determine expenditure for long distance telephone service

Household expenditure for long distance telephone service in City A and average monthly expenditure in City B extends from X to Y, determine the value of X?

  Home sales and interest rates

The probability that home sales will increase in the next 6 months is 0.25. The probability that the interest rates on loans will go up in the same period is estimated to be 0.74.

  Hypothesis testing-effectiveness of aspirin

A physician's health study of the effectiveness of aspirin in the reduction of heart attacks was begun in 1982 and completed in 1987. Of 11,037 male medical doctors in the United States who took one 325 mg buffered aspirin tablet every other day

  Show the sampling distribution of p where p is the sample

1 the cincinnati enquirer reported that in the united states 66 of adults and 87 of youths ages 12 to 17 use the

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