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2 years ago

Pls help its due today

Mathematics

2 answers:

bekas [8.4K]2 years ago

6 0

Answer: dewwkmldnfkbgrfkhuiejdowks;ldsbjhienesdljknew.mdasx;oj

Step-by-step explanation:

Mazyrski [523]2 years ago

3 0

Even I need help for a similar question!!

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The business college computing center wants to determine the proportion of business students who have personal computers (PC's)

Anastasy [175]

Answer:

Option A) reject null hypothesis if z is greater than 1.645

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 250

p = 30% = 0.3

Alpha, α = 0.05

Number of women belonging to union , x = 75

First, we design the null and the alternate hypothesis

$H_{0}: p = 0.3\\H_A: p > 0.3$

This is a one-tailed(right) test.

Rejection Region:

$z_{critical} \text{ at 0.05 level of significance } = 1.645$

So, the rejection region will be

$z > 1.64$

That is we will reject the null hypothesis if the calculated z-statistic is greater than 1.645

Option A) reject null hypothesis if z is greater than 1.645

6 0

2 years ago

Supposed you have been given the task of engineering this product knowing that in your state the cost of electricity is 18 cents

Usimov [2.4K]

You would have about 3472 Hours

.18\8=1.44 for 8 hour

5000/1.44=3472

Hope this helps :)

5 0

2 years ago

A recipe for scrambled eggs uses 2 tablespoons of milk for every 3 eggs

Goryan [66]

Answer:

2:3

Step-by-step explanation:

4 0

2 years ago

NEED AS SOON AS POSSIBLE

ss7ja [257]

This is 16+85 i know it is becaout

5 0

2 years ago

What is the value of a when we rewrite 8^x as a^-x/9

Andre45 [30]

Answer:

$a = \frac{1}{134217728}$

Step-by-step explanation:

Given

$8^x = a^{-x/9}$

Required

Find a

Take log of both sides

$log(8^x) = log(a^{-x/9})$

Apply law of logarithm

$x\ log(8) = (-x/9) log(a)$

Divide both sides by a

$log(8) = -\frac{1}{9} log(a)$

Multiply both sides by -9

$-9\ log(8) = log(a)$

Apply law of logarithm

$log(8^{-9}) = log(a)$

Cancel out log

$8^{-9} = a$

Rewrite as:

$a = 8^{-9}$

Apply law of indices

$a = \frac{1}{8^9}$

$a = \frac{1}{134217728}$

4 0

2 years ago