## [answered] A climate researcher knows that it has previously been the

A climate researcher knows that it has previously been the case that the mean temperature in his city has been?74.5 ?F. He suspects that this may no longer be the case and that the mean temperature may now have changed, and he suspects that is has risen in recent times. He collects sample data with the aim of conducting a hypothesis test to examine his suspicions.

Select the correct null and alternative hypotheses for this test:

 H0: ? = 74.5 ?F HA: ? > 74.5 ?F
?
 H0: ? = 74.5 ?F HA: ? ? 74.5 ?F
?
 H0: ? = 74.5 ?F HA: ? ? 74.5 ?F
?
 H0: ? = 74.5 ?F HA: ? ? 74.5 ?F
?
 H0: ? = 74.5 ?F HA: ? = 74.5 ?F
?
 H0: ? = 74.5 ?F HA: ? < 74.5 ?F

A group of home-brewers have always used a particular method of brewing beer. With the same amount of ingredients each time, their brews contain an average of? = 13.737?gallons of beer. The standard deviation is?? = 1.321?gallons.

Rudy has a new brewing method and suspects that it will increase their productivity. The group decide to collect a sample of brewing amounts and conduct a hypothesis test on the mean amount of brew created by the new method. They will be using the value?? = 1.321?as their population standard deviation. The null and alternative hypotheses are set to be:

H0: ? = 13.737

HA: ? > 13.737

Before they collect a sample or do the test, Sam thinks about the new brewing method. He suspects that, while it may increase the average amount of brew created, it may actually decrease it instead. Sam suggests that the alternative hypothesis should simply state that the population mean is not equal to 13.737:

H0: ? = 13.737

HA: ? ? 13.737

Sam believes that:

 instead of conducting a two-tail test, they should conduct a one-tail test. instead of conducting a one-tail test, they should conduct a two-tail test. instead of conducting the particular two-tail test that was proposed, they should conduct a different kind of two-tail test. instead of conducting the particular one-tail test that was proposed, they should conduct a different kind of one-tail test.

1) In this context, the null and alternative hypothesis would be

H0 : ? = 74.5oF

HA : ? &gt; 74.5oF

Since climate researcher suspects that it has risen in recent times. Hence we selected right...

Solution details:
STATUS
QUALITY
Approved

This question was answered on: Sep 18, 2020

Solution~0001003069.zip (25.37 KB)

This attachment is locked

We have a ready expert answer for this paper which you can use for in-depth understanding, research editing or paraphrasing. You can buy it or order for a fresh, original and plagiarism-free copy from our tutoring website www.aceyourhomework.com (Deadline assured. Flexible pricing. TurnItIn Report provided)

STATUS

QUALITY

Approved

Sep 18, 2020

EXPERT

Tutor

### Order New Solution. Quick Turnaround

Click on the button below in order to Order for a New, Original and High-Quality Essay Solutions. New orders are original solutions and precise to your writing instruction requirements. Place a New Order using the button below.

WE GUARANTEE, THAT YOUR PAPER WILL BE WRITTEN FROM SCRATCH AND WITHIN YOUR SET DEADLINE.