A variable can be called or referenced before it has been defined.<br> O True<br> O False

Before the last presidential debates, 50% of registered votes indicated they were planning to vote for the incumbent president.

MAVERICK [17]

Answer:

a) H₀ : p = 0.5

$H_{a} : p > 0.5$

b) z = 2.0785

c) p - value = 0.0188

d) Our conclusion is that there has been a significant increase in the proportion of registered voters who are planning to vote for the incumbent president

Explanation:

Probability of those planning to vote for the incumbent president before the debate, P₀ = 50/100 = 0.5

a) The null and the alternative hypothesis

Let the null hypothesis be represented by $H_{0}$

and the alternative hypothesis be represented by $H_{a}$

H₀ : p = 0.5

$H_{a} : p > 0.5$

b) compute the test statistics

sample size, n = 1200

number of voters planning to vote for the incumbent president, x = 636

Probability of those planning to vote for the incumbent president in the selected sample:

$\bar{p} = x/n\\\bar{p} = 636/1200\\\bar{p} = 0.53$

Formula for the test statistic:

$z = \frac{\bar{p} - p_{0} }{\sqrt{\frac{p_{0}(1-p_{0} ) }{n} } }$

$z = \frac{0.53 - 0.5 }{\sqrt{\frac{0.5(1-0.5 ) }{1200} } }$

z = 2.0785

c)

For $\alpha = 0.05\\$ , the critical value as checked from the normal table will be:

$z_{\alpha} = 1.645$

The P value for z > 2.0785

$P-value = P(z > 2.0785) \\P - value = \phi (-2.0785)\\P - value = 0.0188$

d) What do you conclude?

since $( z = 2.0785) > (z_{\alpha} = 1.645)$ , we will reject the null hypothesis.

Our conclusion is that there has been a significant increase in the proportion of registered voters who are planning to vote for the incumbent president

6 0

3 years ago

At a bakery, which of the following operating characteristics might result in economies of scale? A Each oven requires one worke

MA_775_DIABLO [31]

Answer:

C. A giant mixing container costs twice as much to operate as a small one but can mix 6 times as much dough daily

Explanation:

Economies of scale refers to a state when increase in the output results out of lower average costs. The operation of such a phase results out of, the total cost getting spread over large number of units of production in the long run.

Economies of scale results when the operations of a business expand due to which a firm can buy in bulk, avail more discounts and concessions from the seller for inputs and the efficiency of the labor rises.

In the given case, if the bakery decides to purchase a giant mixing container, it might lead to economies of scale given the fact, with respect to costs, the revenues shall rise more.

Since the giant mixer is capable of mixing six times as much dough daily, it would lead to a reduction in the average cost accompanied by an increase in the output and thereby lead to economies of scale.

6 0

3 years ago

Grib Corporation uses a predetermined overhead rate based on direct labor cost to apply manufacturing overhead to jobs. The pred

gregori [183]

Answer:

$270,000

Explanation:

Calculation of total manufacturing cost assigned to Job 436

Direct Materials

Dept A $50,000

Dept B $10,000

Direct Labor

Dept A ($80,000 x 1/2) $40,000

Dept B $60,000

Manufacturing Overheads

Dept A $80,000

Dept B ($60,000 x 50%) $30,000

Total $270,000

Therefore,

The total manufacturing cost assigned to Job 436 was $270,000.

8 0

3 years ago

Fires create external costs because they spread from one building to another. if the government wants to reduce the external cos

wel

Fires create external costs because they spread from one building to another. If the government wants to reduce the external costs of fires, <span>should it encourage subsidies for sprinkler systems.

Adding sprinkler systems can reduce the amount of fires that happen and spread because as soon as the fire starts, the sprinklers can put it out. Though these are costly, which they range in price depending on the system type and amount they are able to weigh the pros and cons of the system.
</span>

7 0

2 years ago

Flagg records adjusting entries at its December 31 year-end. At December 31, employees had earned $13,600 of unpaid and unrecord

lyudmila [28]

Answer:

Salaries expense A/c Dr $34,000

To Cash A/c $34,000

(Being the salary is paid for cash is recorded)

Explanation:

The journal entry is shown below:

On January 3

Salaries expense A/c Dr $34,000

To Cash A/c $34,000

(Being the salary is paid for cash is recorded)

Since salary is paid so we debited the salary expense account and the cash is reduced so cash account should be credited.

The options which are given are not correct. So, ignored it

6 0

3 years ago

A variable can be called or referenced before it has been defined. O True O False