(Answered) 1 a random sample of 400 computer units has been selected

Statistics

1. A random sample of 400 computer units has been selected from a large population of computers. Apparently 12 units declared damaged. Whether the above sample results is proof that the percentage of damaged computers in the population is more than 2%, the production process must be improved. Conversely, if the percentage of damage is only 2% or less, then the production process does not need to be repaired. Use Alfa 0.05

Write wal hypotheses and alternative hypotheses
Explain your conclusions

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92664552
Price:- $10

Verified Expert

Priced at $20 Now at $10, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A survey of a group of college students was done to find

A survey of a group of college students was done to find out how students get to school for the school year. 15% of those surveyed were from out of state. Of those that were in-state, 56% used a car as their primary form ...

A representative from your company visited a prison and

A representative from your company visited a prison and sampled 500 prisoners in Kailil , concluding that 90 of them are political prisoners. the Test hypothesis, at the 5% significance level, that one third of the priso ...

You are considering investing in a mutual fund the fund is

You are considering investing in a mutual fund. The fund is expected to earn a return of 15 percent in the next year. If its annual return is normally distributed with a standard deviation of 6.10 percent, what return ca ...

Calculate the rate of return available to shareholders for

Calculate the rate of return available to shareholders for a company financing $1 million of assets with the following three arrangements: i. all equity ii. 50 percent equity and 50 percent debt at an interest rate of 12 ...

Rework problem 25 from section 41 of your text involving a

Rework problem 25 from section 4.1 of your text involving a car saleswoman. Assume that showing a car is a Bernoulli trial, and each time she shows a car, there is a probability of 0.05 that the customer will buy the car ...

In preparing a defense against a hostile takeover a firms

In preparing a defense against a hostile takeover, a firm's management assesses the owners of both common and preferred stock with respect to their attitudes toward current management. Of 600 common stockholders, 322 rep ...

A laboratory worker finds that the 3 of his blood samples

A laboratory worker finds that the 3% of his blood samples test positive for the HIV virus. In a random sample of 70 blood tests, what is the mean number that test positive for the HIV virus? (Round your answer to 1 deci ...

According to a pew research center poll 22 of adult

According to a Pew Research Center poll, 22% of adult Americans have contributed to an online fundraising project. A random sample of 100 adults is selected. Let the random variable X be the number of adult Americans who ...

You are looking at two investment options option a and

You are looking at two investment options, Option A and Option B. Following are their populations of returns for the last five years: Option A Option B Year 1 15% 8% Year 2 22% 12% Year 3 8% 10% Year 4 2% 7% Year 5 13% 9 ...

A confidence interval estimate is desired for the gain in a

A confidence interval estimate is desired for the gain in a circuit on a semiconductor device. Assume that gain is normally distributed with standard deviation σ = 30. (a) How large must n be if the length of the 95% CI ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert