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Statistics, Enhanced Unlocking The Power Of Data 2nd Edition Robin H Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F Lock, Dennis F Lock - Solutions
What is the postoperative death rate?a. 0.14%b. 1.44%c. 14.10%d. 14.44%
The table below is a sample report for a hospital showing the discharges and deaths for the last 9~arter of the year. Notice that this report lists the patient discharges and deaths by physIcians on the medical staff. Calculate the death rate for each physician and the total for this quarter.
What is the net autopsy rate?a. 0.26%b. 2.64%c. 26.41 %d. 26.42 %
What is the adjusted hospital autopsy rate?a. 29.09%b. 2.90%c. 29.09%d. 0.29%
What is the newborn autopsy rate?a. 0.66%b. 0.67%c. 6.67%d. 66.67%
What is the fetal autopsy rate?a. 0.50%b. 5.00%c. 50.00%d. 0.050%Using the information reported by University Hospital for September 20XX in the following table, calculate the rates for questions 6 through 12.Round to two decimal places. University Hospital September 20XX Statistics Discharges and
What is the net autopsy rate?a. 0,28%b. 2,87%c. 2.88%d. 28.74%
What is the adjusted hospital autopsy rate?a. 34.04%b. 0.34%c. 3.40%d. 3.04%
What is the fetal death rate?a. 0.55%b. 5.51 %c. 55,10%d. 0.06%
What is the fetal autopsy rate?a. 0.05%b. 0.57%c. 5.71%d. 57,14%
What is the principal difference between net autopsy rate and adjusted hospital autopsy rate?a. The net autopsy rate considers only inpatient deaths.b. Hospital autopsy rates include only those deaths in which the bodies are available for autopsy.c. Fetal deaths are not counted in hospital autopsy
In which of the following rates are outpatients who were autopsied counted in an autopsy rate?a. Gross autopsy rateb. Net autopsy ratec. Adjusted hospital autopsy rated. Newborn autopsy rate
Hospital autopsies include which of the following?a. Inpatients onlyb. Inpatients and outpatients who die in the hospitalc. Inpatients, outpatients, and home care patientsd. Inpatients and any other patient who has at some time been a hospital patient
1. A PCU has a count of 20 patients at 1 a.m. on September 1 and 30 patients at the same time on September 2. Could the counts have been different if the PCU had taken a census at 12:01 a.m. on both days?2. Would you accept the different PCUs in the hospital taking censuses at different times as
1. The census at 12:01 a.m. on June 1 is 110. Three patients were admitted on June 1 at 6:00 a.m. and discharged later that same day. One patient admitted at 6:00 a.m. died at 5:30 p.m. the same afternoon. What is the PCU's daily inpatient census for June I?2. Which would be the better form of data
Differentiate among census, inpatient census, daily inpatient census, and inpatient service days. Will the figure representing an inpatient service day for anyone day be the same as a daily inpatient census or inpatient census?
Given the following inpatient service days for Community Hospital, a 75-bed facility, what IS the total number of inpatient service days provided in June? Date Date Date June Inpatient Service Days June Inpatient Service Days June Inpatient Service Days 1 70 11 68 21 68 2 34 71 12 67 22 71 72 13 65
1. The time for taking the inpatient census must always be __a. Variableb. Consistentc. 12:00 p.m.d. 11 :59 a.m.2. Patient day or inpatient day is more correctly termed __ .a. Inpatient service dayb. Daily inpatient censusc. Total inpatient service day(s)d. Census3. The inpatient census at 12:01
1. Using the data given in the example on page 39, calculate the census for June 2. Then fill in the blanks in the table below. Did the transfers in and transfers out balance?2 . What data will you use to begin June 3, and why?3. Fill in the blanks in the table below. What are the inpatient service
Using the information supplied for June 1, fill in the blanks in the table below. 12:01 a.m. Census Adm 11:59 p.m. Trf Total Dis Dis Trf Census Servi Days Day A/C NB A/C Bir in A/C NB A/C NB out A/C NB A/D A/C NB 6/1 230 12 20 4 3 19 3 2 - I 6/2 21 4 1 19 4 1 0 6/3 23 6 0 24 6/4 25 10 5 1 23 S 4 0
Two hundred and fifty adults and children were in the hospital at 12:01 a.m. on August 1. There were 23 newborns at 12:01 a.m. on August 1. During August, the following data were compiled:1. What would the inpatient census for adults and children be on August 31 at 11:59 p.m.?2. What would the
This exercise consists of two worksheets for calculating a month's inpatient census and inpatient service days. Using the data provided for May 1, complete the first worksheet.If your findings do not match the data for May 31, you have made an error either in your column additions or on one or more
The CDC is the lead agency that ___ _a. Accredits and licenses acute hospital facilities in the United Statesb. Is responsible for providing vital statistics to various agencies, such as the NCHSc. Develops and updates ICD-IO for the worldd. Is responsible for protecting the health of the people of
The type of statistics that makes inferences or a best guess about a larger group of data by drawing conclusions from a smaller group of data is called .a. Descriptive statisticsb. Inferential statisticsc. Generalized statisticsd. Mathematical statistics
Which of the following is considered to be a primary source of data?a. Inpatient censusb. Vital statistics collected by the NCHSc. Health recordd. a, b, and ce. band c only
The division of the HHS that is responsible for developing healthcare policy in the United States is the .a. CDCb. CMSc. AHRQd. WHO
A secondary data source includes •a. Vital statisticsb. The medical recordc. The physician's indexd. A videotape of a counseling session
Which user of statistics has the primary job of supporting terminally ill patients and their families?a. Home health agenciesb. Nursing facilitiesc. Hospiced. MCOs
The NCHS keeps statistics on ____ .a. The licensing information on all healthcare providers in the 50 statesb. Cancer and other deadly diseases in the 50 states and the US-owned territoriesc. Vital statistics, such as births, deaths, and fetal deaths, in North Americad. Vital statistics, such as
Which of the following is not a primary source of statistics?a. Health recordb. Vital statisticsc. Hospital censusd. Disease and operation index
In order to be useful, the figures used in statistics must be ___ .a. Fair and exactb. Valid and reliablec. Honest and justifiedd. Simple and clear
To be reliable, statistical data must __ .a. Have some consistencyb. Be applicable to what is being measuredc. Be collected from one source onlyd. Have multiple meanings
A healthcare organization that delivers medical care and manages all aspects of the care or the payment for care by limiting providers of care, discounting payment to providers of care, or limiting access to care is called a(n).a. Long-term care facilityb. MCO c. Hospitald. Hospice agency
Facilities may choose to pursue accreditation for their cancer registries with the __ .a. American College of Physiciansb. American Cancer Societyc. American College of Surgeonsd. National Institutes of Health
The type of patient who receives care in a hospital-based clinic or department is called a(n) .a. Inpatientb. Outpatientc. Hospice patientd. MCO patient
The number of inpatients present in a healthcare facility at any given time is called a(n) __a. Surveyb. Censusc. Sampled. Enumeration
An international organization founded by the UN that is the directing and coordinating authority on international heath is called the .a. CDCb. AHRQc. NCHSd. WHO
Find the simplest form of each of the following fractions: = 2. 3. 4. 5. 8962
Round the following numbers to the nearest 10.1. 42 2. 338 3. 217 4. 6,989 5. 8,532 Round the following numbers to the nearest hundred.6. 156 7. 321 8. 3,807 9. 4,357 10. 8,175 Round to the nearest whole number.11. 38.1 12. 55 .6 13. 14.7 14. 625 .2 15. 100.5 Round to one decimal
Convert the fraction ~ to a quotient and then a percentage.
Round the following percentages to two decimal places.a. 16.981%b. 13.655%c. 0.569%d. 98.990%e. 98.999%Round the following percentages to one decimal place.f. 0.698%g. 53.123%h. 0.075%I. 34.337%J. 3.876%
Convert the following:a. Convert ~ to a percentage with two decimal places.b. Convert 0.65 to a percentage with two decimal places.c. Convert 34 % to a fraction. Calculate to its simplest form.d. Convert 34 % to a decimal.
Review the following table to verify that the calculations are correct. If any are incorrect, note which ones and provide the correct answers. Community Hospital Administrator's Semiannual Reference Report Discharges by Day of Week January 1, 20XX to June 30, 20XX Number of Patients Day Percent of
A physician on your staff performed 44 cardiac catheterizations last month. 34 of those treated were male. What is the ratio of male patients to female patients who had cardiac catheterizations? What is the proportion? Round to one decimal point.
It was reported in your department meeting that over the past year your hospital decreased the number of employees by four percent. Last year there were 389 people employed; how many are employed this year? Round to a whole number.
Your manager needs to purchase a computer for the new receptionist in your department. The usual price is $1 ,100. The local supply company gives the facility a 13 percent reduction on all items they purchase. What price will your manager pay?
Your beginning salary as an analyst in the HIM department is $14.50 per hour. You are due to receive a 3.4 percent cost-of-living raise in your next paycheck. Your performance evaluation is coming up in one month, and you believe you should get an additional 5 percent increase based on your
Last year, you purchased equipment in the HIM department for $14,250. You have been told that the equipment you bought has depreciated in value by 20 percent. What is the value of the equipment now?
You just scored 40 points out of a possible 50 on your health information test. What percentage of available points did you earn?
Last year, the number of hospitals in your state decreased from 320 to 240. What is the percentage of decrease?
Review the following table and determine the average birth weights and average age of mother. Calculate to one decimal place.For the following questions, refer to the following Quarterly Coding Professional Accuracy Report. Community Hospital Births March 1 through March 31, 20XX Birth Weight in
Are the calculations of the percentage of records accurately coded for each month and the total for the quarter correct?
Coding professional D determined her accuracy rate for the quarter to be 95.9 percent. She would like you to recalculate her accuracy rate because she thinks it is incorrect in the report. Community Hospital Quarterly Coding Professional Accuracy Report January-March 20XX January # # February # # %
A study designed to see what type of incentive might be most effective in encouraging people to exercise. In the study, 281 overweight or obese people were assigned the goal to walk 7000 steps a day, and their activity was tracked for 100 days. The response variable is the number of days (out of
Participants were instructed to either draw an image for each word, write a list of attributes for each word, or write the word. The summary statistics for number of words recalled (out of 10) are shown in Table 8.10.Table 8.10 What helps memory recall? Experiment 1\begin{array}{lccc}\hline Group &
Participants were instructed to either draw an image for each word, visualize an image for each word, or write the word. The summary statistics for number of words recalled (out of 10) are shown in Table 8.11.Table 8.11 What helps memory recall? Experiment 2\begin{array}{lccc}\hline Group &
Participants were instructed to either draw an image for each word, view an image provided for each word, or write the word. The summary statistics for number of words recalled (out of 10) are shown in Table 8.12.Table 8.12 What helps memory recall? Experiment 3\begin{array}{lccc}\hline Group &
Exercise 8.35 describes a study examining hippocampus volume in the brain between controls who have never played football, football players with no history of concussion, and football players with a history of concussion. The data are available in FootballBrain. Use StatKey or other technology to
Drug resistant pathogens pose one of the major public health challenges of this century. Conventional wisdom is that aggressive treatment should be used to kill pathogens rapidly, before they have a chance to acquire resistance. However, if drug pathogens are already present, this strategy may
Exercise 8.39 introduces a study of drug resistant parasites in mice. Figure 8.8 shows boxplots of measures of drug resistance and health for mice getting three different doses of antibacterial drug and one untreated group getting no drug. The plot (bottom right) showing red blood cell density \((R
Exercise 8.39 explores the topic of drug dosing and drug resistance by randomizing mice to four different drug treatment levels: untreated (no drug), light ( \(4 \mathrm{mg} / \mathrm{kg}\) for 1 day), moderate \((8 \mathrm{mg} / \mathrm{kg}\) for 1 day), or aggressive ( \(8 \mathrm{mg} /
Exercise 8.16 on page 554 looks at possible differences in ratings of closeness to a group after doing a physical activity that involves either high or low levels of synchronization (HS or LS) and high or low levels of exertion (HE or LE). Students were randomly assigned to one of four groups with
How do you position yourself when you are going to sleep? A website 5 tells us that \(41 \%\) of us start in the fetal position, another \(28 \%\) start on our side with legs straight, \(13 \%\) start on their back, and \(7 \%\) on their stomach. The remaining \(11 \%\) have no standard starting
Two-way table in Exercise 7.32.Give the degrees of freedom for the chi-square test based on that two-way table.Table From Exercise 7.32:\begin{array}{l|rrrr|c}\hline & {D} & {E} & { F } & { G } & Total \\\hline {A} & 39 & 34 & 43 & 34 & 150 \\{B} & 78 & 89 & 70 & 93 & 330 \\{C} & 23 & 37 & 27 &
Female primates visibly display their fertile window, often with red or pink coloration. Do humans also do this? A study looked at whether human females are more likely to wear red or pink during their fertile window (days 6-14 of their cycle). They collected data on 24 female undergraduates at the
When we want \(95 \%\) confidence and use the conservative estimate of \(p=0.5\), we can use the simple formula \(n=1 /(M E)^{2}\) to estimate the sample size needed for a given margin of error \(M E\). Use this formula to determine the sample size needed for the given margin of error.A margin of
When we want \(95 \%\) confidence and use the conservative estimate of \(p=0.5\), we can use the simple formula \(n=1 /(M E)^{2}\) to estimate the sample size needed for a given margin of error \(M E\). Use this formula to determine the sample size needed for the given margin of error.A margin of
A margin of error of 0.04 .When we want \(95 \%\) confidence and use the conservative estimate of \(p=0.5\), we can use the simple formula \(n=1 /(M E)^{2}\) to estimate the sample size needed for a given margin of error \(M E\). Use this formula to determine the sample size needed for the given
A margin of error of 0.05 .When we want \(95 \%\) confidence and use the conservative estimate of \(p=0.5\), we can use the simple formula \(n=1 /(M E)^{2}\) to estimate the sample size needed for a given margin of error \(M E\). Use this formula to determine the sample size needed for the given
Determine whether it is appropriate to use the normal distribution to estimate the p-value. If it is appropriate, use the normal distribution and the given sample results to complete the test of the given hypotheses. Assume the results come from a random sample and use a 5\% significance level.Test
Do Babies Understand Probability? Can babies reason probabilistically? A study investigates this by showing ten- to twelve-month-old infants two jars of lollipop-shaped objects colored pink or black. Each infant first crawled or walked to whichever color they wanted, determining their "preferred"
An article noted that it may be possible to accurately predict which way a penalty-shot kicker in soccer will direct his shot. The study finds that certain types of body language by a soccer player - called "tells" - can be accurately read to predict whether the ball will go left or right. For a
For a \(N(60,10)\) distribution. Find the specified areas for a normal distribution.(a) The area to the right of 65(b) The area to the left of 48
For a \(N(15,5)\) distribution. Find the specified areas for a normal distribution.(a) The area to the right of 28(b) The area to the left of 12
For a \(N(160,25)\) distribution(a) The area to the right of 140(b) The area to the left of 200 Find the specified areas for a normal distribution.
Effect of Organic Soybeans after 5 Days After 5 days, the proportion of fruit flies eating organic soybeans still alive is 0.90 , while the proportion still alive eating conventional soybeans is 0.84 . The standard error for the difference in proportions is 0.021 .We find a significant difference
Effect of Organic Bananas after 25 Days After 25 days, the proportion of fruit flies eating organic bananas still alive is 0.42 , while the proportion still alive eating conventional bananas is 0.40 . The standard error for the difference in proportions is 0.031 .We find a significant difference in
Effect of Organic Potatoes after 11 Days After 11 days, the proportion of fruit flies eating organic potatoes still alive is 0.68 , while the proportion still alive eating conventional potatoes is 0.66 . The standard error for the difference in proportions is 0.030 .We find a significant difference
Effect of Organic Soybeans after 8 Days After 8 days, the proportion of fruit flies eating organic soybeans still alive is 0.79 , while the proportion still alive eating conventional soybeans is 0.32 . The standard error for the difference in proportions is 0.031 .We find a significant difference
Dogs Ignore an Unreliable Person A study investigated whether dogs change their behavior depending on whether a person displays reliable or unreliable behavior. Dogs were shown two containers, one empty and one containing a dog biscuit. An experimenter pointed to one of the two containers. If the
Incentives to Exercise: How Well Do They Work? A study was designed to see what type of incentive might be most effective in encouraging people to exercise. In the study, 281 overweight or obese people were assigned the goal to walk 7000 steps a day, and their activity was tracked for 100 days. The
Incentives to Exercise: What Works Best? In the study described in Exercise 5.29, the goal for each of the overweight participants in the study was to walk 7000 steps a day. The study lasted 100 days and the number of days that each participant met the goal was recorded. The participants were
Incentives for Quitting Smoking: Group or Individual? In a smoking cessation program, over 2000 smokers who were trying to quit were randomly assigned to either a group program or an individual program. After six months in the program, 148 of the 1080 in the group program were successfully
Incentives for Quitting Smoking: Do They Work? Exercise 5.31 describes a study examining incentives to quit smoking. With no incentives, the proportion of smokers trying to quit who are still abstaining six months later is about 0.06 . Participants in the study were randomly assigned to one of four
The survey included 194 young adults (ages 18 to 24 ) and 53 of them said that they had used online dating. If we use this sample to estimate the proportion of all young adults to use online dating, the standard error is 0.032 . Find a \(95 \%\) confidence interval for the proportion of all US
55- to 64-year-olds The survey included 411 adults between the ages of 55 and 64 , and 50 of them said that they had used online dating. If we use this sample to estimate the proportion of all American adults ages 55 to 64 to use online dating, the standard error is 0.016 . Find a \(95 \%\)
College-Educated or Not? The survey also asked participants for their level of education, and we wish to estimate the difference in the proportion to use online dating between those with a college degree and those with a high school degree or less. The results are shown in the two-way table in
Comparing Males to Females In the survey, \(17 \%\) of the men said they had used online dating, while \(14 \%\) of the women said they had.(a) Find a \(99 \%\) confidence interval for the difference in the proportion saying they used online dating, between men and women. The standard error of the
The Lady Tasting Tea By some accounts, the first formal hypothesis test to use statistics involved the claim of a lady tasting tea. In the 1920 's Muriel Bristol-Roach, a British biological scientist, was at a tea party where she claimed to be able to tell whether milk was poured into a cup before
The null and alternative hypotheses for a test are given as well as some information about the actual sample(s) and the statistic that is computed for each randomization sample. Indicate where the randomization distribution will be centered. In addition, indicate whether the test is a left-tail
Exercise 4.71 discusses a study comparing average brain size between three groups of subjects. In this exercise, we test for evidence that average brain size is larger in football players who have never had a concussion (FBNoConcuss) than in football players with a history of concussions
Exercise 4.29 introduces a historical scenario in which a British woman, Muriel Bristol-Roach, claimed to be able to tell whether milk had been poured into a cup before or after the tea. An experiment was conducted in which Muriel was presented with 8 cups of tea, and for each cup she correctly
Numerous studies have shown that a high fat diet can have a negative effect on a child's health. A new study suggests that a high fat diet early in life might also have a significant effect on memory and spatial ability. In the double-blind study, young rats were randomly assigned to either a
In a test to see whether males, on average, have bigger noses than females, the study indicates that " \(p
In a test to see whether there is a difference between males and females in average nasal tip angle, the study indicates that " \(p>0.05\)."Introduces a study examining whether or not noses continue to grow throughout a person's lifetime. The study included many measurements (including size of the
In a test to see whether there is a positive linear relationship between age and nose size, the study indicates that " \(p
If something costs more, do our expectations lead us to believe it is better? Because expectations play such a large role in reality, can a product that costs more (but is in reality identical) actually be more effective? Baba Shiv, a neuroeconomist at Stanford, conducted a study involving 204
In Exercise 4.16 we describe an observational study investigating a possible relationship between exposure to organophosphate pesticides as measured in urinary metabolites (DAP) and diagnosis of ADHD (attention-deficit/hyperactivity disorder). In reporting the results of this study, the authors
Exercise 4.17 discusses an experiment done in Africa testing possible ways to reduce the spread of malaria by mosquitoes. In the experiment, 43 volunteers were randomly assigned to consume either a liter of beer or a liter of water, and the attractiveness to mosquitoes of each volunteer was
If lizards adapt their behavior to the fire ants, then lizards from the invaded habitats should flee from the fire ants faster than lizards from the uninvaded habitats. Test this hypothesis. The variable Flee gives time to flee, measured in seconds, and lizards taking more than a minute to flee
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