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Question 7 (1 point)                

ANOVA is more appropriate when testing more than two groups because multiple t test may [increase / decrease] the risk of Type I error

  Question 7 options:

Increase

Decrease

Question 8 (2 points)                

What type of data is appropriate for using ANOVA?

  Question 8 options:

Nominal

Ordinal

Interval

Question 9 (1 point)                

ANOVA is testing whether or not the variance ________ group variation is the same as ________ group variation.

  Question 9 options:

sought in / known

within / between

provided to / seen in

Question 1 (2 points)                

When a difference is not statistically significant, there are two possibilities. Select the two possibilities:

  Question 1 options:

Type I error

The hypothesis was incorrectly written

Type II error

The null hypothesis is true

Question 2 (2 points)                

If a researcher makes a Type I error, the researcher has:

  Question 2 options:

Drawn a conclusion that there is no difference between the experimental and control groups when in fact a difference exists

Drawn a conclusion that there is a difference between the experimental and control groups when no difference exists

Question 3 (2 points)                

If a researcher makes a Type II error, the researcher has:

  Question 3 options:

Drawn a conclusion that there is no difference between the experimental and control groups when in fact a difference exists

Drawn a conclusion that there is a difference between the experimental and control groups when no difference exists

You buy a perpetual bond (perpetuity) and the first payment will be $10,000 which you will receive 5 years after purchase. After the first payment, the payments will grow by 1.2% every year. Your opportunity cost of capital when buying the bond is 10.6%, what is the present value of the bond at the time of purchase?

Provide your answer as an integer, i.e. no decimal points, and no thousands separator if applicable.

A company expects to generate the following cash flows:

Year Free Cash Flow 1 $106 2 $115 3 $130 4 $136 5 $142

The expected growth rate after year 5 is expected to be 3.4% and the copmany's WACC is 9.9%. The company has $844 in net debt.

What is the the company's expected market capitalization rounded to the nearest integer based on this information?

Jaffre Enterprise distributes a single product whose selling price is $16 and whose variable expense is $11 per unit . The company’s fixed expense is $16,000
Required:
1. What would be the net operating income under 4000 units
2. Estimate company’s Break Even Point- FOR CVP graph.

(5-10) The Brownstone Corporation's bonds have 5 years remaining to maturity. Interest is paid annually, the bonds have a $1,000 par value, and the coupon interest
rate is 9%.

a. What is the yield to maturity at a current market price of (1) $829 or (2) $1,104?
b. Would you pay $829 for one of these bonds if you thought that the appropriate
rate of interest was 12%-that is, if r = 12%? Explain your answer.

11. How long will it take for $1000 to grow to $1500 if it earns 8% annual interest. compounded monthly? Approximate answer to 2 decimal places.

 

Science Grade 9 Chemistry:

You are doing an experiment to see if drinking coffee at breakfast improves your marks. You divide your class into 2 groups. Group A drinks coffee in the morning and Group B does not drink coffee. When the students come into class you have them write a test. You found the average mark for Group A was 75% and the average mark for Group B 90%. (6 marks)

What is the independent variable in your study?

What is the dependent variable in your study?

What is the control group in your study?

List 2 controls you should have in your study.

What is your conclusion for the study?

Grade 9 chemistry:

 Bob takes a break from singing and fills a balloon indoors where the temperature is 21 degrees Celsius (normal room temperature). Then, he puts the balloon in the fridge, where the temperature is 2 degrees Celsius. What will happen to his balloon? Why does this happen? 

Consider a group of 15 Engineering students and 12 CS students. The Engineering students are identified as , while the CS students are identified as . A committee of five students is formed from the group of Engineering and CS students. It is necessary to have at least three Engineering students and at least one CS student on the committee. Find the probability that the student  is selected to be part of the committee.

p=0.30

Find the following binomial probabilities. Show all your work. Round to 4 decimal places. Find the probability that exactly 6 of 25 are successes. Find the probability that at least 10 of 25 are successes. Find the probability that at most 5 of 25 are successes. Find the probability that there are between 3 and 7 successes, inclusive.

• Find 80%, 85% and 99.9% confidence interval for the sample mean of a population, if we know that in a random sample of 70 people from the population, the sample mean is 60 and the standard deviation is 5.

I need help solving the ones circled please

(1) Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability a random sample of 1200 people has a mean IQ of less than 99?

Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability a random sample of 150 people has a mean IQ between 102 and 103?

Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability a random sample of 100 people has a mean IQ of more than 104?

Legs for a wooden dining room table are produced by a computer numerically controlled (CNC) lathe. The cutting blade lasts a mean time of 550 h with a standard deviation of 20 h. To avoid cutting errors, the shop manager would like to keep the probability of a failure to less than 0.002. How many hours should the blade be used before replacement? Explain.

A grocery clerk sets up a display of 12-pack cartons of cola. There are 15 cartons at the base of a triangle and one at the top. How many cartons of cola are needed for the complete display. 

9. Use a calculator to evaluate the series   

10. Use graphing technology to approximate the solutions of the equation   to the nearest tenth.

11.   

A sequence is defined by the formula f(n + 1) = f(n) – 3. if f(4) = 22, what is f(1)?

Which of the following is an arithmetic sequence?

(A) 1,5,7,11….

(B) 10,20,30,40,.....

(C) 33,40,43,50…..

(D) 100,150,250,300…..

Given the following sequence, 2, 4, 6, 8,...check whether the terms of the sequence form an Arithmetic Progression?

Given sequence -2, 6, -18, 54,... find its common ratio?

1.) write the next three of the given sequence 1, 1/3, 1/9, 1/27, __, __, __,

2.) Given the harmonic sequence of 8, 16/3, 4, __, find the 8th term.

3.) Insert 3 harmonic mean between - 1/2, _____, ______, _______, and 1/ 14. 5.)

The first two terms of the harmonic sequence are 5 and 6. Which term of the sequence will be 30?

cant seem to get the correct answer I know the steps on this worded problem I am working on. What I am in need of if the steps so far are right or wrong in solving it.  it is in two parts. Heres the problem

2. Maria Rios sells commercial restaurant supplies and equipment. She is paid on a commission-only basis. Shereceives 2% for her sales up to $60,000. For the next $90,000 of sales, she is paid 3%, and for any sales above$150,000 she is paid 4%. How much commission would Maria earn in a month when her sales were$195,000?

3. Maria Rios (problem 2) is not paid commission on any restaurant supplies or equipment that are later returned.If an item is returned, its price is deducted from Maria’s total sales to get her net sales. The commission-onlyrate is applied to her net sales. Suppose that Maria sold merchandise worth $195,000 but that $40,000 of thatwas later returned.What would be Maria’s commission on net sa

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

The t test assumes the variances of the two samples are ________.

Large

Variable

Similar

Small

For which of the following questions would you use a paired t-test?

Will a group receiving music therapy have a different cognitive score than a group receiving aroma therapy?

Is music therapy associated with high cognitive scores?

Will a group have greater proportion of high cognitive scores after receiving music therapy compared to the rest of the population?

Will a group receiving music therapy have a change in their cognitive score after receiving the therapy compared with before they received the therapy?

What is the solution of ?

Which is the solution to ?

There were 5 more members in the Choir than in the Robotics Club. There were 32 girls in the Choir Club and 19 girls in the Robotics Club. The number of boys in the Choir Club was 5/7 the number of boys in the Robotics Club. How many members were there in Choir Club?

Find  by implicit differentiation when :

Which of the following tests are used to test the impact of a treatment before and then after an intervention?

Standard error

Correlation

Paired t-test

Student's t-test

For which of the following questions would you use a student's t-test?

Is music therapy associated with high cognitive scores?

Will a group receiving music therapy have a different cognitive score than a group receiving aroma therapy?

Will a group have greater proportion of high cognitive scores after receiving music therapy compared to the rest of the population?

Will a group receiving music therapy have a change in their cognitive score after receiving the therapy compared with before they received the therapy?

Conclusions about hypothesis tests can also be drawn from confidence intervals associated with the means test. If we have a null hypothesis of no difference between means, and the confidence interval contains zero (which would indicate no difference), then the null hypothesis _______________ be rejected.

Can

Need more information

Cannot

Conclusions about hypothesis tests can also be drawn from confidence intervals associated with the means test. If the interval does not contain zero (which would indicate there is a difference), then the null hypothesis _____________ be rejected.

Need more information

Cannot

Can

Which of the following tests are used to test the difference between two independent groups?

Correlation

Student's t-test

Paired t-test

Standard error

T tests assume the population is ________ distributed

Negatively Skewed and

Widely

Normally

Evenly

Positively Skewed and

Which of the following data types can be used with t-tests?

Interval

Ordinal

Nominal

Match the following tests with their description

Z Test

Paired t-test

F Test

Student's t-test

Test to see if the variances of two samples are not statistically significantly different

Test to see if the difference between two sample means is greater than the standard error of the difference

Test to see if there is a difference between two independent groups

Test to see if there is a difference in the same sample, with the two groups being before and after an intervention

(1 point) Suppose a group of 900 smokers (who all wanted to give up smoking) were randomly assigned to receive an antidepressant drug or a placebo for 6 weeks. Of the 513 patients who received the antidepressant drug, 110 were not smoking one year later. Of the 387 patients who received the placebo, 101 were not smoking one year later. Given the null :   and the alternative hypothesis: ≠ 0 , conduct to see if taking an antidepressant drug can help smokers stop smoking. Use,  α= 0.05

(a) The test statistic is

(b) The P-value is

(c) The final conclusion is

    ◯ A. There seems to be evidence that the patients taking the antidepressant drug have a different success rate of not smoking after one year than the placebo group

    ◯ B. There is not sufficient evidence to determine whether the antidepressant drug has an effect on changing smoking habits after one year.