A manufacturer claims that its televisions have an average

Reference no: EM13622605

A manufacturer claims that its televisions have an average lifetime of at least five years (60 months) with a population standard deviation of seven months. Eighty-one televisions were selected at random, and the average lifetime was found to be 59 months. With a=0.025, is the manufacturer's claim supported?

Critical value=

Test value=

Reject or Not Reject the Null Hypothesis

Summarize the Results

Reference no: EM13622605

Questions Cloud

Managing multiple projects 1identify an open source project : 1identify an open source project management tool that could be used as an alternative to microsoft project. try provide

Suppose that the selling price of the above compound : the percentage of alcohol in a certain compound may be considered as a random variable x with the following pdffx x

The snappy service gas station manager is thinking about a : the snappy service gas station manager is thinking about a promotion that she hopes will bring in more business to the

What proportion of the time is he up because of his dog : a man finds that two things cause him to wake up at night- his cat or his dog. if it is due to his cat the time to fall

A manufacturer claims that its televisions have an average : a manufacturer claims that its televisions have an average lifetime of at least five years 60 months with a population

Suppose you know that the distribution of sample : suppose you know that the distribution of sample proportions of the residents of one town over 70 years old in samples

Construct a laspeyers index using 1988 as a base year what : a security analyst wishes to construct an index to reflect the changes in the price of five stocks in a certain

The average magnesium concentration in ground water around : the average magnesium concentration in ground water around metro city is u65.6 parts per millionppm with a standard

The annual cost of storing each item is estimated at 80 : the xyz manufacturing company makes a special metal bracket that costs 10 per unit.xyz makes 20000 units per day on its

User Account

All Pages