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What is the writing system developed by Mayas that set them apart in the Americas?

What is the significance of the Roman Forum?

What is the working process of building construction designers?

What does it mean to say we have 95% confidence in an interval computed

as m Å} 1.96(σm)?

Rejecting the null hypothesis when the research hypothesis is false is?

a. Effect size

b. Power

c. A type 1 error

d. A type 2 error

Assume when adults with a smartphone are randomly selected 47% use them in meetings or classes. 11 adults smartphone users are randomly selected.find the probability that fewer than 5 of them use their smartphones in meetings or classes. The probability is?

Which of the following is true about sampling distribution?

• Shape of the sampling distribution is always the same shape as the population distribution ,no matter what the sample size is 
• Sampling distributions are always nearly normal.
• Sampling distributions of the mean is always right skewed since means cannot be smaller than 0
• Sampling distribution get closer to normally as the sample size increases  

Which of the following is not appropriate to use the t-confidence interval for μ

a) The variable has a Normal distribution

b) The population standard deviation, ơ, is known.

c) The sample size is greater than 30.

d) The sample is based on a simple random sample (SRS).

e) All of the above are appropriate.

Which of the following is not appropriate to use the z-confidence interval for μ.

a) The sample size is greater than 30.

b) The sample is based on a simple random sample (SRS).

c) The population standard deviation, σ, is unknown.

d) The variable has a Normal distribution.

e) All of the above are appropriate.

The t distribution should be used whenever.

(a)  None of the answers is correct.

(b) the sample size is less than 30

(c)  the population is not normally distributed

(d) the sample standard deviation is used to estimate the population standard deviation

In interval estimation, the t distribution is applicable only when

a) the population has a mean of less than 30.

b) the sample standard deviation (s) is given instead of the population standard deviation (6).

c) the variance of the population is known.

d) the standard deviation of the population is known.

e) we will always use the t distribution.

For a standard normal distribution, which of the following variables always equals 0?

A) Population mean

B) Population standard deviation

C) Standard error

D) Median

Which of the following would be an appropriate null hypothesis?
A. The mean of a population is equal to 55.
B. The mean of a sample is equal to 55.
C. The mean of a population is greater than 55.
D. Only (a) and (c) are true.

Which of the following is NOT a property of the sampling distribution?

1. the mean of the sample means is the population mean.

2. the distribution of the sample mean tends to be skewed to the right or left.

3. the expected value of the sample mean is equal to the population mean.

4. the sample means target the value of the population mean.

which of the following is not a property of the sampling distribution of the sample​ mean?

A. The expected value of the sample mean is equal to the population mean.

B. The mean of the sample means is the population mean.

C. The distribution of the sample mean tends to be skewed to the right or left.

D. The sample means target the value of the population mean.

Which of the following is NOT a property of the sampling distribution of the variance?
a. The sample variances target the value of the population variance.
b. The mean of the sample variances is the population variance.
c. The distribution of sample variances tends to be a normal distribution.
d. The expected value of the sample variance is equal to the population variance.

Which of the following is NOT a property of the sampling distribution of the sample mean?

Choose the correct answer below.

A. The sample mean to target the value of the population mean.

B. The expected value of the sample mean is equal to the population mean.

C. The mean of the sample means is the population mean.

D. The distribution of the sample mean tends to be skewed to the right or left.

Which of the following would be an appropriate alternative hypothesis?
A. The mean of a population is equal to 55.
B. The mean of a sample is equal to 55.
C. The mean of a population is greater than 55.
D. The mean of a sample is greater than 55.

A statistic is said to be unbiased if

a.) it is used for only honest purposes.

b.) the survey used to obtain the statistic was designed so as to avoid even the hint of racial or sexual prejudice.

c.) both the person who calculated the statistic and the subjects whose responses make up the statistic were truthful.

d.) the mean of its sampling distribution is equal to the true value of the parameter being estimated.

Which of the following is NOT true when testing a claim about a​proportion?

A. If you want to test a claim about population​ proportions, use the​ P-value method or the classical method of hypothesis testing.

B. When testing claims about population​ proportions, the traditional method and the​ P-value method are equivalent in the sense that they always yield the same result.

C. A conclusion based on a confidence interval estimate will be the same as a conclusion based on a hypothesis test.

D. Both the traditional method and​ P-value method use the same standard deviation based on the claimed proportion​ p, but the confidence interval uses an estimated standard deviation based on the sample proportion ModifyingAbove p with caretp.

Prior hypothesis bias occurs when managers make decisions based on strong beliefs that they think apply to the situation even when they don't.

True 

False

when performing a hypothesis test upon two dependent​ samples, what is the variable of​ interest?

What are the two decisions that you can make from performing a hypothesis​ test?

What are the two decisions that you can make from performing a hypothesis​ test?

A) reject the alternative hypothesis

B) reject the null hypothesis

C) fail to reject the null hypothesis

D) make a type 1 error

E) accept the null hypothesis

F) accept the alternative hypothesis

G) make a type 2 error

H) fail to reject the alternative hypothesis

If marginal cost is below selling price, a producer should

a. increase output.

b. raise selling price.

c. lower selling price.

d. stop production.

Which of the following should be (if available) the entrepreneurs most economical choice for short term cash?

A.) inventory backed loan

B.) credit card

C.) Home equity line of credit

d.)sells recievables

E. Recievables back loans

A home mortgage that can be repaid over a 30-year period is an example of:

◯ A. a student loan

◯ B. a long-term loan

◯ C. a short-term loan

◯ D. a line of credit

The power generated during the vertical jump test depends on which metabolic pathway to generate ATP

what is the immune response pathway of a pathogen in the gut associated lymphoid tissue?

The most common economic system in the world is a:

A) Closed economy

B) Command economy

C) Mixed economy

D) Traditional economy

Which statement best describes a mixed market economy:

Which of the following is a correct statement about a mixed​ economy?

Which of the following is a correct statement about a mixed​ economy?

A.

In a mixed​ economy, most economic decisions are made by the government but markets plays a significant role in the allocation of resources.

B.

In a mixed​ economy, all economic decisions are made in markets.

C.

In a mixed​ economy, most economic decisions are made in markets but the government plays a significant role in the allocation of resources.

D.

In a mixed​ economy, the government makes all economic decisions.

How are surplus and shortage defined in economics?

shortage and surplus in economics

1. Explain the meaning of elasticity? What are the different types of elasticities? Of what use are these elasticities to business ( in other words to Total Revenue) ? (3 marks)

2. A firm supplied 3000 pens at the rate of AED 10 per pen. Next month, due to a rise in the price to AED 22 per pen, the supply of the firm increased to 5000 pens. Using the midpoint method find the price elasticity of supply of pens. (3 marks)

3. The government of Dubai had been concerned about the recent explosion in apartment rental rates for low income families. To combat this problem, a proposal has been made to institute rent control that would place $850 per month ceiling on apartment rental rates. Apartment supply and demand in the market are expressed in the following equations:

Qs = - 400 + 2P Market Supply

Qd= 5,600 – 4P Market Demand

Where Q is the number of apartments and P is the rental rate

A. Calculate the equilibrium rental rate and the equilibrium apartments rented (3 marks)

B. Determine the quantity demanded, quantity supplied, and shortage with a $ 850 per month ceiling price on apartment rental rates (3 marks)

C. Determine the amount of consumer and producer surplus with rent control (3 marks)