Perform a one-tailed hypothesis test

Assignment Help Basic Statistics

Reference no: EM13113790

PROBLEM 1: Conduct a one-tailed hypothesis test given the information below. A certain brand of fluorescent light tube was advertised as having an effective life span before burning out of 4000 hours. A random sample of 84 bulbs was burned out with a mean illumination life span of 1870 hours and with a sample standard deviation of 90 hours. With a 0.05 level of significance, is the sample mean less than the advertised mean?

Reference no: EM13113790

Questions Cloud

Explain gallo socially responsible by supplying dessert wine : Explain Is Gallo being socially responsible by supplying dessert wines? What responsibility does Gallo have to consumers in furnishing dessert wines?

Implement an intrusion detection system in java : You are to implement an intrusion detection system in java. Calculate a threshold for detecting an intrusion. The threshold is 2*(Sums of weights).

What would elucidate this divergence in margins : National cereal manufacturers receive high margins for many of their cereals, often ranging from 60-75 percent. By contrast, the large retail grocery chains (Kroger, Safeway, etc.) that sell cereal make much smaller margins. What would elucidate ..

How do you suspect such modifications : Although several different mammalian species have been cloned, the efficiency of this process is extremely low. Often tens or even hundreds of oocytes must be implanted with donor nuclei to obtain one healthy live birth.

Perform a one-tailed hypothesis test : Conduct a one-tailed hypothesis test given the information below. A certain brand of fluorescent light tube was advertised as having an effective life span before burning out of 4000 hours.

Expalin how does a binding arbitration work : Expalin how does a binding arbitration work? Should companies be allowed to adopt a binding arbitration requirement for their current employees in which employees surrender their rights to litigate empoyment disputes through the court system?

Hypothesis testing of federal funding program : A Federal funding program is available to low income neighborhoods. To qualify for the funding a neighborhood must have a mean household income of less then $15,000 per year.

Explain and develop a strategy for meeting financing needs : Explain and Develop a strategy for meeting your short-term financing needs to acquire needed property and equipment.

Discuss the various characteristics that encompass diversity : Discuss the various characteristics that encompass components of diversity, not just race or gender

User Account

All Pages