### Population mean-sample sizes

Assignment Help Basic Statistics
##### Reference no: EM1316315

Assume we draw a simple random sample from a population having a mean of 100 and a standard deviation of 16. What is the probability that a sample mean will be within plus-or-minus two of the population mean for each of the following sample sizes?

(a) n = 50   ____________

(b) n = 100 ____________

(c) n = 200 ____________

(d) n = 400 ____________

#### Questions Cloud

 Evaluation of sum of values of pure business flows : Evaluation of Sum of values of pure business flows and financing effect - Financing flows should be discounted at the rate of return required by the providers of debt. Compute the time and cost : Compute the time and cost Effect of leverage on creditors and share holders : Effect of leverage on creditors and share holders - As the firm levers up, how does the increase in value get apportioned between the creditors and the shareholders? Determine the indifference level of ebit : Compute the indifference level of EBIT - Determine the indifference level of EBIT between these two alternatives. Population mean-sample sizes : What is the probability that a sample mean will be within plus-or-minus two of the population mean for each of the following sample sizes? Who has visited an online auction site in the past month : Visits to Web sites. What kinds of Web sites do males aged 18 to 34 visit most often? Pornographic sites take first place, but about 50 percent of male Internet users in this age group visit an auction site such as eBay at least once a month. Inte.. An instructor claims the average time to take a statistics : An instructor claims the average time to take a statistics test is greater than 39 min. As, if a sample of 33 students took 43 min. is the instructor's claim true? Sketch the graph from information : Sketch the graph from information. Computation of no odd days to pay its suppliesrs : Computation of no odd days to pay its suppliesrs and the cost of goods sold is equivalent to 65% of sales

### Write a Review

#### Problem on central limit theorem area under a curve

The manufacturer of a coffee dispensing machine claims the ounces per cup is normally distributed with population mean equal to 8 ounces and standard deviation equal to 0.9 ounces. If 50 cups of coffee were measured, what is the possibility that- ..

#### Design and model resulting from analysis

An experiment is designed using three levels of ground clutter and two filter types. The experiment is performed by randomly selecting a treatment combination

#### Joint-marginal-conditional probabilities

Determine the probability that she lives in an all electric home?

#### Analysis of variance and its assumptions

Is there evidence of violations of the usual ANOVA assumptions of equal variances and normal populations? Set up and perform appropriate TESTS at the α = 0.05 level of significance.

#### Hypothesis testing for single proportion

Be sure the appropriate assumptions and conditions are satisfied before you proceed.

#### Find the probabilities for x

Which of the following is the correct set of probabilities for X and if a student is selected at random, the probability he or she is either a Junior or a Senior

#### Observational and sample study

A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car

#### Detrermining standard error of the mean

Assume a population standard deviation of 450-kilowatt hours. Determine the standard error of the mean.

#### Likelihood of the sample mean

What is the likelihood the sample mean is greater than \$22.50 but less than \$25.00?

#### Study of cardiovascular risk factors

A study of cardiovascular risk factors compared heavy smokers, light smokers, and nonsmokers. Both men and women were included in the study so that the two factors are smoking level and gender.

#### Concept of statistical signi cance

Concept of statistical signi cance

#### Simple random sampling technique

When the names of all the students at Omega University were dropped to a fishbowl, they would include: