### Point estimate of the proportion of all light bulbs

Assignment Help Basic Statistics
##### Reference no: EM1399709

206 randomly selected light bulbs were tested in a laboratory, 161 lasted more than 500 hours. Find a point estimate of the proportion of all light bulbs that last more than 500 hours.

#### Questions Cloud

 Determining probability relationships : Suppose you, as manager of Tennessee Grilled Pork, will submit proposals for a small business loan and a city business grant to help fund the building of the new location you submitted to the management teams. Mean-median-sum of squared deviations : For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation: Explain database management systems : Consider the subsequent opinion shared by some people- database management systems as well as data-warehousing techniques are the greatest risk to individual privacy in modern times Calculate the workstation cycle time : Some tasks and the order in which they must be performed according to their assembly requirements are shown in the following table. These are to be combined into workstations to create an assembly line. Point estimate of the proportion of all light bulbs : 206 randomly selected light bulbs were tested in a laboratory, 161 lasted more than 500 hours. Find a point estimate of the proportion of all light bulbs that last more than 500 hours. Site preference for restaurants : Suppose you manage Tennessee Grilled Pork, a fast food restaurant specializing in pork sandwiches and pork chops on a stick. You have decided to build a new restaurant and have 2 possible site locations Sample space and probability : List the elements of the sample space S using the letters G and D for good and defective respectively. What is the mean number of defective hard drives that the small business receives if all their shipments come in sets of five that contain the sa.. What is the company''s corporate strategy : From the annual reports you screened what is the company's corporate strategy? What are their company goals as well as were How should apple adjust it''s production and price : Suppose that Apple must pay a royalty on each mobile device that it produces. How should Apple adjust its production and price in response to the royalty?

### Write a Review

#### Finding probabailty that none of the antennas is defective

Assume 1.5% of antennas on new Nokia cell phones are imperfect. For random sample of 200 antennas, determine the probability that: None of the antennas is defective.

#### Computing average daily rainfall in week

Compute average daily rainfall in the week and for weekends. Get the average of weekdays' rainfalls and average of weekend's rainfalls.

#### Probability on discrete-distribution

When combining probabilities, to find the probability of one event AND another event, the separate probabilities should be

#### Calculate the residual

Question: If the regression line is drawn as Y = C + 1075x, when X was 2 and y was 239, given that the intercept was 11. Calculate the residual

#### Unconditional probability

Compare the unconditional probability of having the disease to the conditional probability of having the disease given the test says you have the disease.

#### Determining confidence interval evaluate for average number

Determine 95% confidence interval evaluate for average number of years served by all Supreme Court justices?

#### Absolute percentage error

Would you expect the mean absolute percentage error to be more than or less than 0.25? Describe.

#### Standard error of the mean

A sample of 10 observations is selected from a normal population for which the population standard deviation is known to be 4. The sample mean is 23. (Round your answers to 3 decimal places.) (a) The standard error of the mean is_____?

#### Example of a hypothesis test

Give an example of a hypothesis test you could perform at work or at home. State what the Null and the Alternative hypotheses would be in your test.

#### Sample correlation between returns on assets

Find the sample correlation between returns on assets and the ratio of loans to deposits. Interpret the intercept and slope of the estimated regression line.

#### Determining the maximum number of wheel bearings

Wheel-Rite has agreed to ship the maximum number of wheel bearings that it produces each day to Itex when an order has been received.

#### Characteristics to theoretical properties

Describe whether the data appear to be approximately normally distrusted by .. a. Comparing data characteristics to theoretical properties.