Quantitative Methods Answers

On May 28, 2020, Amy purchased a Government of Canada T-bill that matures on August 4, 2020. How much did Amy pay for the investment if $10,000 will be received on August 4, 2020 and the rate of simple interest is 1.35%? ________

 need it soon

The process of using sample statistics to draw conclusions about the true population parameters is called

a. statistical inference

b. the scientific method

c. sampling

d. descriptive statistics

e. statistical sampling

Area under normal distribution curve is

a. infinite

b. one

c. .5

d. 2 standard deviation

e. 3 standard deviation

In the graphical method of solving linear programming problems if there is a unique optimal solution

a. is always found at the center of the feasible region

b. is always at the origin

c. lies outside the feasible region

d. is located at one of the corner points of the feasible region

e. Always lies on one of the two axes.

A unimodal distribution has

a. Four modes

b. three modes

c. two modes

d. one modes

e. More than four modes.

Which of the following is not a characteristic of the normal distribution?

a. the normal distribution is unimodal

b. the mean of the normal distribution lies at the center of the normal distribution curve.

c. the normal distribution is a symmetrical distribution

d. the two tails of the normal distribution curve intersect the horizontal axis.

e. the mean of the normal distribution is equal to its mode.

If for a sample of size 36, the standard error of mean is 4, then the population variance will be:

When the chi square test is used as a test of independence, the number of degrees of freedom is determined by

a. the sample size

b. the ratio of sample size and the population

c. number of rows in the contingency table, only

d. number of columns in the contingency table, only

e. both the number of rows and the number of columns in the contingency table

When the population is not normally distributed, population variance is unknown and the sample size is 50, the confidence interval for the population mean is based on

a. the t- distribution with an unknown number of degrees of freedom

b. the t- distribution with 30 degrees of freedom

c. the F- distribution

d. The standard normal distribution

e. the binomial distribution.

the standard deviation of the sampling distribution of the mean is also called the

1. standard deviation
2. sum of square
3. sum of squared deviations
4. variance
5. sample standard deviation