State the null hypothesis and perform the appropriate test

Assignment Help Basic Statistics
Reference no: EM131397222

An electronics firm mass produces a component for which there is a standard measure of quality. Based on testing vast numbers of these components, the company has found that the average quality is µ = 232 with σ = 4.

However, in recent years the quality has not been checked, so management asks you to check its claim with the goal of being reasonably certain that an average quality of less than 232 can be ruled out.

That is, assume the quality is poor and in fact less than 232 with the goal of empirically establishing that this assumption is unlikely. You get X = 240 based on a sample n = 25 components, and you want the probability of a Type I error to be .01. State the null hypothesis and perform the appropriate test assuming normality and σ = 4.

Reference no: EM131397222

What are demand characteristics

What is meant by the sensitivity of a dependent measure? What are ceiling and floor effects?- What are demand characteristics? Describe ways to minimize demand characteristics

What is the probability that all three chips are white

What is the probability that all three are white? Given that three white chips are selected from II, what is the probability that two white chips were transferred from I?

Find chance that it will rain in nc that day

If it rains in Greenville on Monday, there is a 80% chance that it will rain in NC that day. What is the probability it will rain in at least one of the above states.

Forecasting of operations management

A manager receives a forecast for next year. Demand is projected to be 600 units for the first half of the year and 900 units for the second half.

Discuss specific characteristics that could be monitored

Discuss specific characteristics that could be monitored through variable control charts, the form of data to collect, and the appropriate control chart in the given situati

Mean life expectancy

The U.S. Center for Disease Control reports that the mean life expectancy was 47.6 years for whites born in 1900 and 33.0 years for nonwhites. Suppose that you randomly surv

Probability that an individual will die from bird flu

Suppose in a population of 100,000, the probability that an individual will die from bird flu in a given winter is .00009. If the data fits a Poisson distribution, then the

Description of margin of error

A national Retail Foundation survey found housholds intended to spend an average of $932 during the December holiday season. Assume that the survey included 850 households a

Reviews

Write a Review

 
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