Can the manufacturers claim be rejected

Assignment Help Basic Statistics
Reference no: EM131373410

According to The New York Times, 3-D printers are now becoming a reality.

If a manufacturer of the new high-tech printers claims that the new device can print a page in 3 seconds on average, and a random sample of 20 pages shows a sample mean of 4.6 seconds and sample standard deviation of 2.1 seconds, can the manufacturer's claim be rejected? Explain and provide numerical support for your answer.

Reference no: EM131373410

Questions Cloud

Conduct the left tailed test : Let's take dominance to mean 50% ownership, and suppose that a random sample of 700 VW shareholders reveals that 220 of them own Porsche shares. Conduct the left-tailed test aimed at proving that Porsche shareholders are not dominant. What is the ..
Describe the major brain mechanisms of eating : First, describe the major brain mechanisms of eating, thirst, and hunger. Second, choose an eating disorder (anorexia nervosa, bulimia nervosa, or binge-eating) and present a case describing the person
Does the formula for falling bodies give accurate results : Does the formula for falling bodies give accurate or inaccurate results when a feather is dropped? How about when a ball is dropped? What about when a ball is dropped from an airplane?
Discuss about the post given below : This assignment re- introduces you to the framework of 21st Century Skills that you will consider each week as you work to redesign prior coursework for your ePortfolio. Note that a similar format is followed for each of the assignments in this co..
Can the manufacturers claim be rejected : If a manufacturer of the new high-tech printers claims that the new device can print a page in 3 seconds on average, and a random sample of 20 pages shows a sample mean of 4.6 seconds and sample standard deviation of 2.1 seconds, can the manufactu..
State the null and alternative hypotheses : A sample of 50 ads reveals a sample average of 5.1 weeks with a sample standard deviation of 2.3 weeks. State the null and alternative hypotheses and carry out the test at the 5% level of significance.
Define culture and explain its material components : In essay format, define culture and explain its material and nonmaterial components. In addition, talk about the fifteen U.S. core values as outlined by Robin Williams and how they relate to your life
What is the slope : The local ice cream shop is deciding whether or not to hire a new worker. The shop must pay the worker hourly and cover a daily cost for insurance. The cost to pay an hourly worker for one day is represented by the function y = 10x + 30, where x i..
Prove that nsf study overestimated proportion of foreigners : Can these results be used to prove that the NSF study overestimated the proportion of foreigners in U.S. laboratories?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Are the kids in central city as sick as the kids

Flu cases this past fly season in the Central City school system were about 15 per week. For the entire state, the weekly average is 16 and the standard deviation, 2.35. Are the kids in Central City as sick as the kids throughout the state?

  In a large section of a statistics class the points for the

in a large section of a statistics class the points for the final exam are normally distributed with a mean of 72 and a

  Giving null and research hypothesis

Giving Null and Research Hypothesis

  Find the 95 confidence interval on the population mean for

a random sample has been taken from a normal distribution. output from a software package is given belowvariable xn

  Any opponent is independent of previous encounters

A player of a video game is confronted with a series of opponents and has an 79% probability of defeating each one. Success with any opponent is independent of previous encounters. The player continues to contest opponents until defeated

  What percentage of its customers carry a credit card

a retail establishment accepts either the American Express or VISA credit card. A total of 24 percent of its customers carry an American Express card, 61 percent carry a VISA card, and 11 percent carry both.

  Do new visits vary with the phase of the moon do the

many people believe that unusual behavior is more likely to occur during a full moon. in fact they believe that twice

  Time of the last occurrence in the time interval

In the previous example, let, instead, T be the time of the last occurrence in the time interval (0, t]. If there is no occurrence during (0, t], we set T = 0. Compute E T.

  Overall uean and inferential tests

Which measure of central tendency would you use to summarize the data below? Which inferential test would you use to determine if there is a difference in rainfall between the sample 2 and 3?

  What is the probability that a random point selected in the

what is the probability that a random point selected in the interval 04 will be an integer?what is the probability that

  Confidence interval-proportion of adults

A survey on the drinking habits of Americans estimated the percentage of adults across the country who drink beer, wine, or hard liquor at least occasionally. Of the 1516 adults interviewed, 985 said that they drank.

  Confidence interval for population mean if sample mean given

A sample of 81 observations is selected from a normal population with a standard deviation of 5. The sample mean is 40. Determine the 95% confidence interval for the population mean.

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