A researcher examined the effect of background noise level on memory performance of college students. Students...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A researcher examined the effect of background noise level on memory performance of college students. Students were randomly assignment to one of two groups. Students in the first group were given a memory test in a room with a low level of background noise and students in the second group were given the memory test in a room with a high level of background noise. The memory scores of the two groups are shown below. Set alpha at .05 and determine if background noise level had a significant effect on memory scores. Low noise level scores: 8, 10, 6, 8, 10, 6 (SD = 1.788854) High noise level scores: 1, 3, 4, 7, 5, 4 (SD = 2) What is an appropriate research question for this problem? Select one: O a. Is there a difference in memory between studying with a low level of background noise or high level of background noise? O b. Is our sample mean different than our population mean? O c. Is memory better with a low level of background noise compared to a high level of background noise? O d. Is there a difference in preferred background noise between those who do good on exams and those who do poorly on exams? A researcher examined the effect of background noise level on memory performance of college students. Students were randomly assignment to one of two groups. Students in the first group were given a memory test in a room with a low level of background noise and students in the second group were given the memory test in a room with a high level of background noise. The memory scores of the two groups are shown below. Set alpha at .05 and determine if background noise level had a significant effect on memory scores. Low noise level scores: 8, 10, 6, 8, 10, 6 (SD = 1.788854) High noise level scores: 1, 3, 4, 7, 5, 4 (SD = 2) What is an appropriate research question for this problem? Select one: O a. Is there a difference in memory between studying with a low level of background noise or high level of background noise? O b. Is our sample mean different than our population mean? O c. Is memory better with a low level of background noise compared to a high level of background noise? O d. Is there a difference in preferred background noise between those who do good on exams and those who do poorly on exams?
Expert Answer:
Answer rating: 100% (QA)
1The answer is A as we want to study the effect on the memory if ... View the full answer
Related Book For
Essentials of Statistics for the Behavioral Sciences
ISBN: 978-1464107771
3rd edition
Authors: Susan A. Nolan
Posted Date:
Students also viewed these accounting questions
-
The case study in Chapter 12 examined the effect of foreign competition in the automotive industry as the number of imported cars steadily increased during the 1970s and 1980s.10 The U.S. automobile...
-
In Example 2.8 we examined the effect of a 20% decline in copper demand on the price of copper, using the linear supply and demand curves developed in Section 2.6. Suppose the long-run price...
-
1 How is consumer behavior defines? 2 what is an offering? 3 what are some of the factors in the psychological core that affect consumer behavior and decisions.? 4 what are aspects of consumer...
-
On January 1, 20x1, Allan Co. purchased 400,000 bonds for 392,000. The bonds mature on January 1, 20x5 and pay 12% annual interest beginning January 1, 20x2. Transaction costs are negligible. The...
-
The global recession forced thousands of firms into bankruptcy. Does this fact alone confirm that external factors are more important than internal factors in strategic planning? Discuss.
-
Prepare appropriate disclosures reflecting the related party relationship and transactions between Urton Company and its employee Kathryn Manton for the period ended 30 June 2015.
-
Engagement Letter. Stephen Hu, CPA, from Taipei, Taiwan, has just accepted a new client, Kiwan Xou. The company will be audited under the ISA and IAS standards. The client will be given an audit...
-
Using the appropriate interest table, answer each of the following questions. (Each case is independent of the others.) (a) What is the future value of $9,000 at the end of 5 periods at 8% compounded...
-
( b ) On 3 1 s t Jan. 2 0 2 4 the cash book modi Showed its debit balance Rs . 2 , 0 0 , 0 0 0 On going through the pass book following irregularies were observed. ( i ) One cheque amounting to Rs ....
-
DETERMINATION OF IRON CONTENT IN A FERROUS AMMONIUM SULFATE UNKNOWN Obtain an unknown sample from your professor and record the unknown number in your notebook. Weigh out 3-4 samples of between...
-
Simulate the impact of the model variables in artificial neural networks in machine learning
-
You have determined that the market value of Firestone's debt is two-third (2/3 rd ) of the market value of equity. Its WACC is 14 percent, and the tax rate is 35 percent. If the after-tax cost of...
-
Gloria Corporation presents the following information for year 2020 & 2021 Sales Production Expenses Direct materials Direct labor Gross Profit Factory overhead Operating Expenses 2020 P 45,000 2021...
-
Question 1 (26 Marks) Trust Bank Assets Duration Liabilities Duration Reserves 6,000,000 0.00 Checkable Deposits 8,000,000 1.6 Securities Money Market Deposits 14,000,000 0.45 1 Year 15,000,000 0.80...
-
8. Otto Carnage retired from Demolition Derby 10 years ago and entered another profession for which he was eminently qualified - valet parking lot attendant. Otto has been very successful and now...
-
For each of the sources below, one example of how they may be used for an in-text citation. There is no requirement any text beyond the in-text citation. You may choose to write a narrative or...
-
True or False: Fixed costs increase in direct proportion to sales volume. Question 22Select one: True False
-
You are thinking of investing in one of two companies. In one annual report, the auditors opinion states that the financial statements were prepared in accordance with generally accepted accounting...
-
A sample of 100 people had a mean depression score of 85; the population mean for this depression measure is 80, with a standard deviation of 20. A different sample of 100 people had a mean score of...
-
Find the incorrectly used symbol or symbols in each of the following statements or formulas. For each statement or formula, (1) state which symbol(s) is/are used incorrectly, (2) explain why the...
-
How are the critical t values affected by sample size and degrees of freedom?
-
Describe four indicators commonly used in operating indicator analysis.
-
What is the difference between financial and operating indicator analyses?
-
Talias Tutus bought a new sewing machine for $40,000 that will be depreciated using the MACRS depreciation schedule for a 5-year recovery period. a. Find the depreciation charge each year. b. If the...
Study smarter with the SolutionInn App