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2 years ago

Simplify 24/1/8 jdtchdbghdjcfgdbdnfnfnbv

Mathematics

1 answer:

bazaltina [42]2 years ago

7 0

Answer:

129 :)))

Step-by-step explanation:

If that wasn't the answer you were looking for tell me and i will change it

::0))

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After a college football team once again lost a game to their archrival, the alumni association conducted a survey to see if alu

valentina_108 [34]

Answer:

P-value for this hypothesis test is 0.00175.

Step-by-step explanation:

We are given that the alumni association conducted a survey to see if alumni were in favor of firing the coach.

A simple random sample of 100 alumni from the population of all living alumni was taken. Sixty-four of the alumni in the sample were in favor of firing the coach.

Let p = proportion of all living alumni who favored firing the coach

SO, Null Hypothesis, $H_0$ : p = 0.50 {means that the majority of alumni are not in favor of firing the coach}

Alternate Hypothesis, $H_A$ : p > 0.50 {means that the majority of alumni are in favor of firing the coach}

The test statistics that will be used here is One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of the alumni in the sample who were in favor of firing the coach = $\frac{64}{100}$ = 0.64

n = sample of alumni = 100

So, test statistics = $\frac{0.64-0.50}{{\sqrt{\frac{0.64(1-0.64)}{100} } } } }$

= 2.92

Now, P-value of the hypothesis test is given by ;

P-value = P(Z > 2.92) = 1 - P(Z $\leq$ 2.92)

= 1 - 0.99825 = 0.00175

Therefore, the P-value for this hypothesis test is 0.00175.

4 0

3 years ago

Determine whether each view represents the object. Assume there are no hidden cubes. HELP PLEASE I DON'T UNDERSTAND!!

zubka84 [21]

Answer:

The answer is: #3 yes, yes

Step-by-step explanation:

The first 3 shapes in the image count as the first view and the 4th shape is the second view. They both represent the object.

4 0

2 years ago

Percents from Tabled Values

alexandr1967 [171]

Answer:

17.9% of men have a HS degree
50.5% of 2-yr degree earners were women
27.9% of the group has a 4-yr degree or higher

Step-by-step explanation:

It is convenient to use a spreadsheet to total the numbers for you. This reduces errors and put the numbers in a form that makes it easy to see what you're working with in any given calculation.

men with HS degree = (male HS)/(all male)

= 76/425 ≈ 0.1788 ≈ 17.9%

2-yr degrees that are women = (female 2-yr)/(2-yr total)

= 248/491 ≈ 0.5051 ≈ 50.5%

4-yr degrees in group = (4-yr degrees)/(total group)

= 258/925 ≈ 0.2789 ≈ 27.9%

_____

Comment on the problem

The spreadsheet is identical to the one used for your other problem. All that needed to be done was to enter the new numbers. The formatting, headers, and formulas remained the same. For solving these problems, it's a matter of picking the two numbers needed from the appropriate row or column and computing their ratio.

(The computations were done by hand here to better show you the numbers used and the rounding to tenth percent. They can be done in the spreadsheet with point and click.)