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laiz [17]
4 years ago
6

The mean age of professors at a university is 58.4 years. If a hypothesis test is performed, how should you interpret a decision

that fails to reject the null hypothesis? A) There is sufficient evidence to support the claim μ-584. B) There is sufficient evidence to reject the claim μ= 58.4. C) There is not sufficient evidence to reject the claim μ-584. D) There is not sufficient evidence to support the claim μ=58.4.
Mathematics
1 answer:
Wewaii [24]4 years ago
5 0

Answer: B) There is sufficient evidence to support the claim μ=584

Step-by-step explanation:

Let \mu be the population mean age of professors at a university.

As per given , we have

Null hypothesis : H_0:\mu=58.4

If we fails to reject null hypothesis , it means that we need to accept it.

It means we have sufficient evidence that null hypothesis is true.

i.e. There is sufficient evidence to support the claim μ=584

Hence, the correct answer is A) There is sufficient evidence to support the claim μ=584.

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How many quart are 8/1/4 gallons
Westkost [7]

Given:

Consider the given gallons are 8\dfrac{1}{4} gallons.

To find:

The number of quarts in 8\dfrac{1}{4} gallons.

Solution:

We know that,

1 gallons = 4 quarts

Using this conversion, we get

8\dfrac{1}{4}\text{ gallons}=4\times 8\dfrac{1}{4}\text{ quarts}

8\dfrac{1}{4}\text{ gallons}=4\times \dfrac{32+1}{4}\text{ quarts}

8\dfrac{1}{4}\text{ gallons}=4\times \dfrac{33}{4}\text{ quarts}

8\dfrac{1}{4}\text{ gallons}=33\text{ quarts}

Therefore, there are 33 quarts in 8\dfrac{1}{4} gallons.

6 0
3 years ago
A company that produces computers recently tested the battery in its latest laptop in six separate trials. The battery lasted 8.
Anna35 [415]

confidence interval for the mean battery life in the new model is [7.9489, 8.3045].

What is confidence interval ?

A confidence interval, in statistics, refers to the chance that a population parameter can fall between a collection of values for an exact proportion of times.

Main body:

Formula for confidence interval is =

CI = x- bar ± z*s/√n            where,

CI = confidence interval

x- bar = sample mean

z = confidence level value

{s} = sample standard deviation

{n} = sample size  

given ;

n = 6

mean = (8.23+7.89+8.14+8.25+8.30+ 7.95)/6

         =  8.127

value of z for 95% C.I. = 1.96

C.I. = 8.127 ± 1.96 * 0.22/√6

C.I. = 8.127 ± 0.1781

C.I. =[7.9490, 8.3044]

Hence correct option is A.

To know more about confidence interval , visit:;

brainly.com/question/15712887

#SPJ4

         

8 0
1 year ago
The mult of 5-6 to the power of 76
Liula [17]

9514 1404 393

Answer:

  1

Step-by-step explanation:

  (5-6)^{76}=(-1)^{76}=((-1)^2)^{38}=1^{38}=\boxed{1}

5 0
3 years ago
Read 2 more answers
Find the value of the expression given below. 2/3-1/7
vivado [14]

Answer:

the answer is 11/21 or 0.523809524

hope this helped

Step-by-step explanation:

6 0
4 years ago
Sally is building a fence. She needs 234 inches of fencing material. How many yards of fencing material does she need?
Brums [2.3K]

Answer:

6.5 yards

Step-by-step explanation:

1 yard = 36 inches

234/36 = 6.5

7 0
3 years ago
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