Business, 31.03.2021 22:50 DondreeColeman

An engineer has designed a valve that will regulate water pressure on an automobile engine. The vahe was tested on 100 engines and the mean pressure was 72 Ibs/square inch. Assume the variance is known to be 0.81. If the valve was designed to produce a mean pressure of 73 is square inch is there sufficient evidence at
the 0.01 level that the valve does not perform to the specifications?
State the null and alternative hypotheses for the above scenario.

Answers: 3

Show answers

Other questions on the subject: Business

Business, 22.06.2019 16:00, anonymous1813

Winners of the georgia lotto drawing are given the choice of receiving the winning amount divided equally over 2121 years or as a lump-sum cash option amount. the cash option amount is determined by discounting the annual winning payment at 88% over 2121 years. this week the lottery is worth $1616 million to a single winner. what would the cash option payout be?

Answers: 3

continue

Business, 22.06.2019 23:30, frankgore8496

What are consequences of rapid inflation? (select all that apply.) savings accounts become less desirable because interest earned is lower than inflation individual purchasing power increases, which results in an increase in demand. individual purchasing power decreases, which results in a decrease in demand. people postpone purchasing expensive items, such as homes, until prices drop.

Answers: 1

continue

Business, 23.06.2019 00:30, HottheadAnthony7234

Shelly bought a house five years ago for $150,000 and obtained an 80% loan. now the home is worth $140,000 and her loan balance has been reduced by $12,000. what is shelly's current equity?

Answers: 3

continue

Business, 23.06.2019 05:30, alani64

When conducting a swot analysis, information about turnover, profit margins, and staff quality can be used to identify:

Answers: 2

continue

You know the right answer?

An engineer has designed a valve that will regulate water pressure on an automobile engine. The vahe...