Blog

Iron dextran is ordered for a young child with severe iron-deficiency anemia. What nursing considerations should be included?

The mean pulse rate for adults is 70 beats per minute (bpm). A yoga instructor claims students who take their training for two months will have a lower pulse rate than this. A sample of 40 students after two months of training has a mean pulse rate of 68 bpm with a standard deviation of 4.5 bpm. What is the alternative hypothesis?

A 5-year-old girl sustained a concussion when she fell out of a tree. In preparation for discharge, the nurse is discussing home care with her mother. Which statement made by the mother indicates a correct understanding of the teaching?

An 8-year-old child with leukemia is hospitalized for treatment. The nurse reviews the child’s laboratory results and notes a very low platelet count. The child’s parent asks how to help prevent complications at home. Which nursing instruction is most important?

Nationally, 44% of women have hypertension. A study is conducted to determine if the proportion is less for those on a low-fat diet. In a sample of 175 women on a low-fat diet, 65 were determined to have hypertension. Select the correct P-value after running the appropriate test using the calculator. 

A new medicine is tested to determine if it lowers patients’ heart rates. A sample of seven patients have their heart rate measured before and after taking the medicine. (Differences are calculated by taking ‘before – after’.) The data is in the table below. Find a 90% confidence interval for the population mean difference. 1 2 3 4 5 6 7 Before 84 78 73 77 88 90 74 After 75 77 76 70 85 83 70

Two population parameters are compared by taking a sample from each population. If those chosen for one sample affects who is chosen for the other sample, which word best describes the samples?

We wish to konw if people walk at different speeds at the airport depending on whether they are departing or arriving. A researcher measured the walking speed of random travelers at the airport. What is the best description of this method of collecting data?

The average time students spent on a visit to the Student Computer Lab last year was 45 minutes. A lab worker believes the average time has changed this year. To test this claim, a sample of 20 students is taken this year with the average time spent per visit being 49 minutes with a standard deviation of 7 minutes. Select the correct P-value after running the appropriate test using the calculator. 

Choose the statement which best describes a Type I Error.