Questions
calculate r and r2 for each data set. Interpret their values. Complete parts a through d....

calculate r and r2 for each data set. Interpret their values. Complete parts a through d.

a.

x   y
-2   -4
-1   -1
0   0
1   3
2   6

b.

x   y
-2   6
-1   3
0   1
1   0
2   -2

c.

x   y
2   3
3   2
3   4
4   2
4   3
4   4
5   3

d.

x   y
-3   0
-2   1
0   2
2   1
3   0

In: Statistics and Probability

# 60. Refer to the Real Estate data, which report information on the homes sold in...

# 60. Refer to the Real Estate data, which report information on the homes sold in Goodyear, Arizona, last year.

A. A recent article in the Arizona Republic indicated that the mean selling price of the homes in the area is more than $220,000.

Can we conclude that the mean selling price in the Goodyear, AZ, area is more than $220,000?

Use the .01 significance level. What is the p-value? b. The same article reported the mean size was more than 2,100 square feet.

Can we conclude that the mean size of homes sold in the Goodyear, AZ, area is more than 2,100 square feet?

Use the .01 significance level. What is the p-value?

B. The same article reported the mean size was more than 2,100 square feet. Can we conclude that the mean size of homes sold in the Goodyear, AZ, area is more than 2,100 square feet? Use the .01 significance level. What is the p-value?

C. Determine the proportion of homes that have an attached garage. At the .05 significance level, can we conclude that more than 60% of the homes sold in the Goodyear, AZ, area had an attached garage? What is the p-value?

D. Determine the proportion of homes that have a pool. At the .05 significance level, can we conclude that more than 60% of the homes sold in the Goodyear, AZ, area had a pool? What is the p-value?

Price Bedrooms Size Pool Distance Twnship Garage Baths
263.1 4 2300 1 17 5 1 2
182.4 4 2100 0 19 4 0 2
242.1 3 2300 0 12 3 0 2
213.6 2 2200 0 16 2 0 2.5
139.9 2 2100 0 28 1 0 1.5
245.4 2 2100 1 12 1 1 2
327.2 6 2500 0 15 3 1 2
271.8 2 2100 0 9 2 1 2.5
221.1 3 2300 1 18 1 0 1.5
266.6 4 2400 0 13 4 1 2
292.4 4 2100 0 14 3 1 2
209 2 1700 0 8 4 1 1.5
270.8 6 2500 0 7 4 1 2
246.1 4 2100 0 18 3 1 2
194.4 2 2300 0 11 3 0 2
281.3 3 2100 0 16 2 1 2
172.7 4 2200 1 16 3 0 2
207.5 5 2300 1 21 4 0 2.5
198.9 3 2200 1 10 4 1 2
209.3 6 1900 1 15 4 1 2
252.3 4 2600 0 8 4 1 2
192.9 4 1900 1 14 2 1 2.5
209.3 5 2100 0 20 5 0 1.5
345.3 8 2600 0 9 4 1 2
326.3 6 2100 0 11 5 1 3
173.1 2 2200 1 21 5 1 1.5
187 2 1900 0 26 4 0 2
257.2 2 2100 0 9 4 1 2
233 3 2200 0 14 3 1 1.5
180.4 2 2000 0 11 5 0 2
234 2 1700 0 19 3 1 2
207.1 2 2000 0 11 5 1 2
247.7 5 2400 0 16 2 1 2
166.2 3 2000 1 16 2 1 2
177.1 2 1900 0 10 5 1 2
182.7 4 2000 1 14 4 0 2.5
216 4 2300 0 19 2 0 2
312.1 6 2600 0 7 5 1 2.5
199.8 3 2100 0 19 3 1 2
273.2 5 2200 0 16 2 1 3
206 3 2100 1 9 3 0 1.5
232.2 3 1900 1 16 1 1 1.5
198.3 4 2100 1 19 1 1 1.5
205.1 3 2000 1 20 4 0 2
175.6 4 2300 1 24 4 1 2
307.8 3 2400 1 21 2 1 3
269.2 5 2200 0 8 5 1 3
224.8 3 2200 0 17 1 1 2.5
171.6 3 2000 1 16 4 0 2
216.8 3 2200 0 15 1 1 2
192.6 6 2200 1 14 1 0 2
236.4 5 2200 0 20 3 1 2
172.4 3 2200 0 23 3 0 2
251.4 3 1900 0 12 2 1 2
246 6 2300 0 7 3 1 3
147.4 6 1700 1 12 1 0 2
176 4 2200 0 15 1 1 2
228.4 3 2300 0 17 5 1 1.5
166.5 3 1600 1 19 3 0 2.5
189.4 4 2200 0 24 1 1 2
312.1 7 2400 0 13 3 1 3
289.8 6 2000 0 21 3 1 3
269.9 5 2200 1 11 4 1 2.5
154.3 2 2000 0 13 2 0 2
222.1 2 2100 0 9 5 1 2
209.7 5 2200 1 13 2 1 2
190.9 3 2200 1 18 3 1 2
254.3 4 2500 1 15 3 1 2
207.5 3 2100 1 10 2 0 2
209.7 4 2200 1 19 2 1 2
294 2 2100 0 13 2 1 2.5
176.3 2 2000 1 17 3 0 2
294.3 7 2400 0 8 4 1 2
224 3 1900 1 6 1 1 2
125 2 1900 0 18 4 0 1.5
236.8 4 2600 1 17 5 1 2
164.1 4 2300 0 19 4 0 2
217.8 3 2500 0 12 3 0 2
192.2 2 2400 0 16 2 0 2.5
125.9 2 2400 0 28 1 0 1.5
220.9 2 2300 1 12 1 1 2
294.5 6 2700 0 15 3 1 2
244.6 2 2300 0 9 2 1 2.5
199 3 2500 1 18 1 0 1.5
240 4 2600 0 13 4 1 2
263.2 4 2300 0 14 3 1 2
188.1 2 1900 0 8 4 1 1.5
243.7 6 2700 0 7 4 1 2
221.5 4 2300 0 18 3 1 2
175 2 2500 0 11 3 0 2
253.2 3 2300 0 16 2 1 2
155.4 4 2400 1 16 3 0 2
186.7 5 2500 1 21 4 0 2.5
179 3 2400 1 10 4 1 2
188.3 6 2100 1 15 4 1 2
227.1 4 2900 0 8 4 1 2
173.6 4 2100 1 14 2 1 2.5
188.3 5 2300 0 20 5 0 1.5
310.8 8 2900 0 9 4 1 2
293.7 6 2400 0 11 5 1 3
179 3 2400 0 8 4 1 2
188.3 6 2100 1 14 2 1 2.5
227.1 4 2900 0 20 5 0 1.5
173.6 4 2100 0 9 4 1 2
188.3 5 2300 0 11 5 1 3

In: Statistics and Probability

The ledger of Whispering Winds Company contains the following balances: Retained Earnings $28,000, Dividends $1,500, Service...

The ledger of Whispering Winds Company contains the following balances: Retained Earnings $28,000, Dividends $1,500, Service Revenue $51,500, Salaries and Wages Expense $29,000, and Supplies Expense $6,000.

The closing entries are as follows:

(1)   Close revenue accounts.
(2) Close expense accounts.
(3) Close net income/(loss).
(4) Close dividends.


Enter the balances in T-accounts, post the closing entries, and underline and balance the accounts.

Salaries and Wages Expense

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit balance

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit balance

Supplies Expense

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit balance

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit balance

Service Revenue

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit balance

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit balance

Dividends

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit balance

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit balance

Income Summary

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit balance

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit balance

Retained Earnings

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit amount

select an option                                                          Bal.(1)(2)(3)(4)

enter a debit balance

select an option                                                          Bal.(1)(2)(3)(4)

enter a credit balance

In: Accounting

1 19.7 1 14.7 1 19.5 1 18 1 15.3 1 13 1 18.1 1 22.6...

1 19.7
1 14.7
1 19.5
1 18
1 15.3
1 13
1 18.1
1 22.6
1 17.2
1 22
2 11.8
2 11.5
2 13.8
2 4
2 12.1
2 13.4
2 16.6
3 15.3
3 17.2
3 22.4
3 21.2
3 22.1
3 22.7
3 24.5
3 19.5
3 21.5
4 14.7
4 14
4 13.7
4 14.6
4 14.4
4 17.2
4 17.2
4 17.4
4 14.6

1) What was the margin of error for the confidence interval for gasoline mileage of make 2?

2) What was the lower 95% confidence limit for make 2 mileage?

3) What was the upper 95% confidence limit for make 2 mileage?

4) What is the value of the t test statistic for testing the hypothesis that makes 2 and 3 do not differ in mileage?

In: Statistics and Probability

A hospital is interested in evaluating inter-rater reliability in nurse assessment of dementia. A random selection...

A hospital is interested in evaluating inter-rater reliability in nurse assessment of dementia. A random selection of four nurses evaluated six patients (randomly assigned) and recorded a dementia score. The data is available in “Nurse ICC data”. Use a one-way, random-effects model (software of your choice) to find estimates of

  1. the variance components and
  2. the intraclass correlation coefficient (ICC)

Note that you won’t be including “patient” in your model. Patient-to-patient variability and nurse*patient interaction will be included in the error (“within”) term.

patient nurse rating
1 1 9
1 2 2
1 3 5
1 4 8
2 1 6
2 2 1
2 3 3
2 4 2
3 1 8
3 2 4
3 3 6
3 4 8
4 1 7
4 2 1
4 3 2
4 4 6
5 1 10
5 2 5
5 3 6
5 4 9
6 1 6
6 2 2
6 3 4
6 4 7

In: Statistics and Probability

Explain the mass fragmentation pattern of (organic spectroscopy) 1) Benzene 2)Neopentane 3)n-butyl alcohol 4) Toluene 5)1-Butanol...

Explain the mass fragmentation pattern of (organic spectroscopy)
1) Benzene
2)Neopentane
3)n-butyl alcohol
4) Toluene
5)1-Butanol
6)Benzyl alcohol

In: Chemistry

Required information Exercise 8-18 Complete the accounting cycle (LO8-1, 8-2, 8-4, 8-6) On January 1, 2021,...

Required information Exercise 8-18 Complete the accounting cycle (LO8-1, 8-2, 8-4, 8-6) On January 1, 2021, the general ledger of ACME Fireworks includes the following account balances: Accounts Debit Credit Cash $ 25,100 Accounts Receivable 46,200 Allowance for Uncollectible Accounts $ 4,200 Inventory 20,000 Land 46,000 Equipment 15,000 Accumulated Depreciation 1,500 Accounts Payable 28,500 Notes Payable (6%, due April 1, 2022) 50,000 Common Stock 35,000 Retained Earnings 33,100 Totals $ 152,300 $ 152,300 During January 2021, the following transactions occur: January 2 Sold gift cards totaling $8,000. The cards are redeemable for merchandise within one year of the purchase date. January 6 Purchase additional inventory on account, $147,000. January 15 Firework sales for the first half of the month total $135,000. All of these sales are on account. The cost of the units sold is $73,800. January 23 Receive $125,400 from customers on accounts receivable. January 25 Pay $90,000 to inventory suppliers on accounts payable. January 28 Write off accounts receivable as uncollectible, $4,800. January 30 Firework sales for the second half of the month total $143,000. Sales include $11,000 for cash and $132,000 on account. The cost of the units sold is $79,500. January 31 Pay cash for monthly salaries, $52,000. Exercise 8-18 Part 1 1. Record each of the transactions listed above. (If no entry is required for a particular transaction/event, select "No Journal Entry Required" in the first account field.)

In: Accounting

(a) Use statistical software to obtain a histogram. Do these house prices appear to be symmetrically...

(a) Use statistical software to obtain a histogram. Do these house prices appear to be symmetrically distributed? If not, in which direction do they seem to be skewed? (1.5 marks) (b) Run a quantile-quantile test of normality on “price” values to see if the data is normally distributed or not. (c) Computer µ and σ for the prices of all houses. (1.5 marks) (d) What percentage of these prices lie in the interval (µ - σ) to (µ + σ)? What about in the interval (µ -2σ) to (µ + 2σ)? In the interval (µ - 3σ) to (µ + 3σ)? (1.5 marks) (e) How do the percentage in part (c) compare to the corresponding percentage for a normal distribution (68.26%, 95.44%, and 99.74%, respectively)? (1.5 marks) (f) Select three random samples of 20 house prices each (make clusters of 20 samples each). Create a histogram for each cluster, and calculate the mean and standard deviation of the prices for each one. How well do your graphs and summary statistics match up with the corresponding population graphs and parameter values obtained in the earlier parts? Does it seem reasonable that they might not match very well? (1.5 marks) (g) Run the ANOVA test on whether the prices for all your three categories are the same or not. (h) Fit data in a linear model (dependent variable is price), independent variable could be whatever you think is suitable. Make two predictions for price based on your independent variable. (i) Grammar check, length (min 3 pages with 1000 words to the max of 4 pages with 1500 words), proper spacing with the APA format (1.5 mark) The format: (1) Write a report for answering part (a) to (h) above. The report must be in an essay format of APA style including graphs and calculations. Graphs and calculations should form an appendix which is attached at the end of your essay. Feel free to use any software or platform you would like if you are not comfortable with Excel. Use the 12 point font and 1.5 spacing.

Price Bedrooms Size Pool Distance Twnship Garage Baths
263.1 4 2300 0 17 5 1 2
182.4 4 2100 1 19 4 0 2
242.1 3 2300 1 12 3 0 2
213.6 2 2200 1 16 2 0 2.5
139.9 2 2100 1 28 1 0 1.5
245.4 2 2100 0 12 1 1 2
327.2 6 2500 1 15 3 1 2
271.8 2 2100 1 9 2 1 2.5
221.1 3 2300 0 18 1 0 1.5
266.6 4 2400 1 13 4 1 2
292.4 4 2100 1 14 3 1 2
209 2 1700 1 8 4 1 1.5
270.8 6 2500 1 7 4 1 2
246.1 4 2100 1 18 3 1 2
194.4 2 2300 1 11 3 0 2
281.3 3 2100 1 16 2 1 2
172.7 4 2200 0 16 3 0 2
207.5 5 2300 0 21 4 0 2.5
198.9 3 2200 0 10 4 1 2
209.3 6 1900 0 15 4 1 2
252.3 4 2600 1 8 4 1 2
192.9 4 1900 0 14 2 1 2.5
209.3 5 2100 1 20 5 0 1.5
345.3 8 2600 1 9 4 1 2
326.3 6 2100 1 11 5 1 3
173.1 2 2200 0 21 5 1 1.5
187 2 1900 1 26 4 0 2
257.2 2 2100 1 9 4 1 2
233 3 2200 1 14 3 1 1.5
180.4 2 2000 1 11 5 0 2
234 2 1700 1 19 3 1 2
207.1 2 2000 1 11 5 1 2
247.7 5 2400 1 16 2 1 2
166.2 3 2000 0 16 2 1 2
177.1 2 1900 1 10 5 1 2
182.7 4 2000 0 14 4 0 2.5
216 4 2300 1 19 2 0 2
312.1 6 2600 1 7 5 1 2.5
199.8 3 2100 1 19 3 1 2
273.2 5 2200 1 16 2 1 3
206 3 2100 0 9 3 0 1.5
232.2 3 1900 0 16 1 1 1.5
198.3 4 2100 0 19 1 1 1.5
205.1 3 2000 0 20 4 0 2
175.6 4 2300 0 24 4 1 2
307.8 3 2400 0 21 2 1 3
269.2 5 2200 1 8 5 1 3
224.8 3 2200 1 17 1 1 2.5
171.6 3 2000 0 16 4 0 2
216.8 3 2200 1 15 1 1 2
192.6 6 2200 0 14 1 0 2
236.4 5 2200 1 20 3 1 2
172.4 3 2200 1 23 3 0 2
251.4 3 1900 1 12 2 1 2
246 6 2300 1 7 3 1 3
147.4 6 1700 0 12 1 0 2
176 4 2200 1 15 1 1 2
228.4 3 2300 1 17 5 1 1.5
166.5 3 1600 0 19 3 0 2.5
189.4 4 2200 1 24 1 1 2
312.1 7 2400 1 13 3 1 3
289.8 6 2000 1 21 3 1 3
269.9 5 2200 0 11 4 1 2.5
154.3 2 2000 1 13 2 0 2
222.1 2 2100 1 9 5 1 2
209.7 5 2200 0 13 2 1 2
190.9 3 2200 0 18 3 1 2
254.3 4 2500 0 15 3 1 2
207.5 3 2100 0 10 2 0 2
209.7 4 2200 0 19 2 1 2
294 2 2100 1 13 2 1 2.5
176.3 2 2000 0 17 3 0 2
294.3 7 2400 1 8 4 1 2
224 3 1900 0 6 1 1 2
125 2 1900 1 18 4 0 1.5
236.8 4 2600 0 17 5 1 2
164.1 4 2300 1 19 4 0 2
217.8 3 2500 1 12 3 0 2
192.2 2 2400 1 16 2 0 2.5
125.9 2 2400 1 28 1 0 1.5
220.9 2 2300 0 12 1 1 2
294.5 6 2700 1 15 3 1 2
244.6 2 2300 1 9 2 1 2.5
199 3 2500 0 18 1 0 1.5
240 4 2600 1 13 4 1 2
263.2 4 2300 1 14 3 1 2
188.1 2 1900 1 8 4 1 1.5
243.7 6 2700 1 7 4 1 2
221.5 4 2300 1 18 3 1 2
175 2 2500 1 11 3 0 2
253.2 3 2300 1 16 2 1 2
155.4 4 2400 0 16 3 0 2
186.7 5 2500 0 21 4 0 2.5
179 3 2400 0 10 4 1 2
188.3 6 2100 0 15 4 1 2
227.1 4 2900 1 8 4 1 2
173.6 4 2100 0 14 2 1 2.5
188.3 5 2300 1 20 5 0 1.5
310.8 8 2900 1 9 4 1 2
293.7 6 2400 1 11 5 1 3
179 3 2400 1 8 4 1 2
188.3 6 2100 0 14 2 1 2.5
227.1 4 2900 1 20 5 0 1.5
173.6 4 2100 1 9 4 1 2
188.3 5 2300 1 11 5 1 3

In: Statistics and Probability

Find the maximum of f(?1,?2)=4x1+ 2?2 + ?12 − 2?14 + 2?1?2 − 3?22 using the...

Find the maximum of f(?1,?2)=4x1+ 2?2 + ?12 − 2?14 + 2?1?2 − 3?22 using the steepest ascent method with initial guess ?1=0 and ?2=0.
(a) Find the gradient vector and Hessian matrix for the function f(?1,?2).
(b) Perform two iterations of the steepest ascent method.

In: Advanced Math

Arrange the following events at the Neuromuscular Junction in the correct sequence: (1) AChase splits apart...

Arrange the following events at the Neuromuscular Junction in the correct sequence:
(1) AChase splits apart ACh
(2) exocytosis of ACh
(3) ligand-gated Na+ channels open in muscle cell
(4) voltage-gated Ca+2 channels open in synaptic knob
(5) Action Potential in MUSCLE cell
(6) activation of Ach Receptor Sites on muscle cell
(7) muscle cell contracts
The correct sequence should read:

A. 1, 3, 2, 4, 6, 5, 7
B. 2, 3, 5, 4, 6, 7, 1
C. 2, 4, 6, 3, 5, 7, 1
D. 2, 6, 3, 5, 4, 7, 1
E. 3, 2, 4, 6, 5, 7, 1
F. 4, 1, 2, 6, 3, 5, 7
G. 4, 1, 6, 3, 5, 2, 7
H. 4, 2, 6, 3, 5, 7, 1
I. 4, 5, 6, 2, 3, 7, 1
J. 5, 2, 6, 3, 4, 7, 1
K. 5, 2, 6, 4, 3, 7, 1
L. 6, 3, 4, 2, 5, 7, 1
M. 6, 7, 5, 4, 3, 1, 2

In: Anatomy and Physiology