All categories

3 years ago

A quality control engineer is testing the battery life of a new smartphone. The company is advertising that the

Mathematics

1 answer:

DIA [1.3K]3 years ago

4 0

The question requires stating the Null and Alternative hypothesis for the scenario described :

Answer:

H0 : μ = 24

H1 : μ < 24

Step-by-step explanation:

The claim or hypothesis to be tested in a statistical problem or analysis is the alternative hypothesis. This is usually the opposite of the Null hypothesis which is the usually the initial truth until there is significant evidence provided using statistical test to prove otherwise.

The null hypothesis, H0 in the scenario above is :

H0 : μ = 24 ( average battery life is 24 hours)

The alternative hypothesis is the claim, that is. The mean battery life not up to 24 hours ;

H1 : μ < 24

You might be interested in

If the height of a right triangle is 24 inches and the the area of the triangle is 120 square inches, what is the length of the

Rus_ich [418]

(120×2)/24 = 10inches

3 0

3 years ago

How do i solve for x

Dafna11 [192]

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! so im pretty sure its 20

5 0

3 years ago

Two ways to evaluate 15(90-3)

Dima020 [189]

Distribute 1st or subtract 90 and 3 first and then multiply by 15

6 0

3 years ago

What is 95% of 120 games?

Basile [38]

The answer to your question is 114

8 0

4 years ago

Read 2 more answers

Tristan is an administrator for a private nonprofit college and read a surprising statistic that 74% of graduates from private n

STatiana [176]

Answer: $H_0: p=0.74\\\\ H_a:p$

Step-by-step explanation:

Let p be the population proportion for the graduates from private nonprofit colleges in the region had at least one outstanding student loan at the time of graduation.

Given : Tristan is an administrator for a private nonprofit college and read a surprising statistic that 74% of graduates from private nonprofit colleges in the region had at least one outstanding student loan at the time of graduation.

i.e. $p=0.74$

He believes that percentage is high and claims that the proportion of graduates at his college is less than the regional rate.

i.e. $p$

Since, the null hypothesis is a statement which always takes equal sign or generally shows " no difference " where as alternative hypothesis takes unequal signs.

Then, the null and alternative hypotheses for this hypothesis test :-

$H_0: p=0.74\\\\ H_a:p$

6 0

3 years ago