Consider Mary's experiment regarding whether learning of 6th graders on a math lesson is affected by background noise level. Mary has collected her data. What is the null hypothesis for her study? What is the alternative hypothesis for her study? What are the assumptions that must be met about her data before she can correctly use an independent t-test to test the hypotheses? Why? How would she see if her data met these assumptions? How much room does she have to violate any of these assumptions and still get accurate results from the t-test? Explain and support your answers.Please respond to the above question using 250 words. Please also use at least 1 reference that is from a peer reviewed article or journal not a website reference. Please also cite the reference in APA 6th edition format. This is tid into the other assignment yu re completing for me (RES-845 Week 4 DQ 1)

Assignment Directions: a. Develop a budget  for the fictitious Brown family. b. Create a chart of the family budget. Include the following: yearly gross and net incomebanking, housing, transportation, savings, insurance, transportation, and leisure activitiesadditional expenses you identify as ordinary and necessary that are not listed in the narrativeidentify fixed and variable expensescited resources to just  additional ordinary and necessary expenses you identifiedYou have the following information:Mr. Brown is a city worker earning $16.54 per hour for a 40 hour week, 52 weeks per year.  He also earns overtime at the standard overtime rate.  This year he worked 500 hours overtime.  He also earns a yearly bonus of $2000 for his satisfactory performance evaluation. What as his total combined income?Mrs. Brown is a social worker with a salary of $26000 per year.  She also works 10 hours per week part-time on weekends at a retail store in the mall an hourly rate of $7.50 and a commission of 10% of sales.  Her yearly sales were $25,000. What is her total combined income?Joe, their teenage son, works 20 hours per week part-time earning $6.50 per hour.  Joe has a responsibility to pay for his own student class dues of $10 per semester, his own entertainment, and his own clothes and personal items.  Create a projected budget for Joe that includes a detailed list of possible expenditures.Sandy, their pre-teen daughter, is too young to work, but receives and allowance of $10 per week for completing her chores at home. Create a typical budget for a pre-teen using her allowance as income.Their house mortgage payment is $992 monthly. Maintenance for the home averages $200 monthly.The family lives in an area with mass transportation available.Family medical insurance is available through Mr. Brown's employer for $150 per month. There are routine co-payments for each visit to the doctor. The Brown family was fortunate that no family member was ill, but each member of the family had a health check-up with a co-pay of $35.00 for each visit. Mr. Brown has a monthly prescription with a co-pay of $15.00.The family's income tax rate is 25%.Mrs. Brown's hourly rate (her part-time work) is put into savings, which earns 10 % interest compounded annually.  How much will be in the account at the end of one year?The family owes $5000 on credit card accounts with an annual interest rate of 12%, which is 1% monthly.  The required minimum monthly payment is $75.00.  How long will it take to repay the balance if the minimum amount is paid?  How much must they pay each month to pay off the balance in 5 years? ***Hint: Locate a credit card calculator online to configure this amount. Provide the link to the calculator that you used.Mr. and Mrs. Brown need to save 5% of their net income for retirement.  Include this in your chart.Identify fixed and variable expenses for the Brown family. *Remember, after you calculate expenses from the information provided and include additional expenses you identify as ordinary and necessary, you must create a chart of the family budget.You may create your project in a word document, a chart, a brochure, or a PowerPoint. For other expenses that you identify as necessary, use local research information (e.g., local sale advertisemens or flyers, etc.) to determine the expenses. Explain and/or cite the sources you used to calculate the additional expenses you identify as ordinary and necessary. Be specific in your explanations and citations. *The grades for Senior Capstone Math and Senior Capstone Science will be averaged for a final grade.