### Probability that interviews with 500 people would yield 320

Assignment Help Basic Statistics
##### Reference no: EM131404333

A public relations agency tells its client that 80% of the residents in a 50-mile radius believe the company is "an industry leader." Skeptical, the company commissions a survey in which just 320 of the 500 persons interviewed felt the company was an industry leader.

If the public relations agency's claim is correct, what is the probability that interviews with 500 people would yield 320 or fewer who felt the company was an industry leader?

### Write a Review

#### Regression method to derive a forecasting equation

Graph these data to see whether a linear equation might describe the relationship between the group's television shows and guitar sales and use the least-squares regression method to derive a forecasting equation.

#### Is drinking independent of type of crime

Is Drinking Independent of Type of Crime? The accompanying table lists sample data that statistician Karl Pearson used in 1909. Does the type of crime appear to be related to whether the criminal drinks or abstains?

#### Probability that sample contains no gear boxes with flaws

historically, only 5% of the gear boxes have such flaws. what is the probability that hooper's sample contains no gear boxes with manufacturing flaws ?

#### Compute confidence interval for percentage of women

Compute a .95 confidence interval for the percentage of women in New York city who have seen the advert using equation (6.10)

#### What would a positive residual mean in given context

What is the correlation?- Write the equation of the line of regression predicting verbal scores from math scores.- In general, what would a positive residual mean in this context?

#### Standardized test statistic

Find the standardized test statistic to test the claim that mean1 = mean 2. Two samples are randomlu selected from each population. The sample statistics are given below.

#### Null and alternative hypothesis-planning habits

American Demographics reported the results of a survey on the planning habits of men and women. In response to the question.

#### The metropolitan area of los angeles-long beach california

the metropolitan area of los angeles-long beach california is the area expected to show the largest increase in the

#### This is another example of regression to the mean students

please expalin how do you solve this problemwe expect that students who do well on the midterm exam in a course will

#### 1 a random variable has possible values of 20 21 22 23 and

1. a random variable has possible values of 20 21 22 23 and 24 that are equally likely to occur.a what is the

#### Low capacity for exercise

A study of the effects of exercise used rats bred to have high or low capacity for exercise. There were 8 high-capacity and 8 low-capacity rats.

#### Find confidence interval for city-s population proportion

260 of them were manufactured by Asian automobile companies. Find the 95% confidence interval for this city's population proportion of vehicles made by Asian companies.