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Ravi Patel

Ravi P.

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Questions asked

INSTANT ANSWER

The Thematic Apperception Test (TAT) presents subjects with ambiguous pictures and asks then to tell a story about them. These stories can be scored in any number of ways. A group of researchers asked mothers of 10 children without and 10 children with depression to complete TAT and scored for the number of stories (out of 10) that exhibited a positive parent-child relationship. They wanted to know whether the mean TAT score for children with depression is lower than that for children without depression. Determine the null hypothesis for this test.?

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ANSWERED

Karan Deep verified

Numerade educator

Calculate the test statistic using the data collected from the employees: Employee Amount (in $/year) 1 $401 2 $306 3 $372 4 $345 5 $292 6 $519 Round your answer to 2 decimal places.

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Sheryl Ezze verified

Numerade educator

The amount of money spent on health care is an important issue for workers because many companies provide health insurance that only partially covers certain medical procedures. The director of employee benefits at a midsize company wants to determine whether the typical worker spends more than $350 per year on health care needs. A random sample of 6 workers is selected and data about spending on their families’ health care needs during the past year was collected. Assume that the distribution of health care spending by the workers is normal. Identify the type of research method used in this study? Justify your answer in a few lines.

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Jason Horton verified

Numerade educator

The amount of money spent on health care is an important issue for workers because many companies provide health insurance that only partially covers certain medical procedures. The director of employee benefits at a midsize company wants to determine whether the typical worker spends more than $350 per year on health care needs. A random sample of 6 workers is selected and data about spending on their families’ health care needs during the past year was collected. Assume that the distribution of health care spending by the workers is normal. Identify the null hypothesis for this test?

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Jason Horton verified

Numerade educator

“Boo Boo B Gone” is the brand of an antiseptic solution manufactured by MedAid. The company uses a high-speed machine to fill its small plastic bottles for distribution. The amount of liquid dispensed by the machine into the bottles forms a normal distribution. A random sample of 12 jars is taken from the production line and tested by quality control. The sample is found to have a mean of 93.50 mL and a standard deviation of 7.38 mL. Using this sample, calculate the upper limit of a 90% confidence interval for the amount of liquid dispensed into the bottles. Round your answer to 2 decimal places.

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Kristina Golden verified

Numerade educator

You are interviewing patients who have been diagnosed with Diabetes as a follow-up for a recent treatment they have received. All the patients in question have been gathered in a waiting area while awaiting to be called in for the interview. The patients have been classified by gender, as well as by the type of diabetes they have been diagnosed with (I or II). A summary of the number of patients falling into each category is as follows: Summary of Diabetic Patients Type I Type II Male 36 12 Female 41 25 In order to speed up the process and minimize the time that your patients have to wait, you decide to call them in 3 at a time. You decide to get started and call in the first 3 patients, what is the probability that all three are females? Express your answer as a percentage, rounded to 2 decimal places (e.g., for 0.42835, write 42.84, for 0.351 write 35.10).

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