Statistics question and answers for October 31, 2023
- Q 8 8 Stroke Survival Rate The proportion of people who live after suffering a stroke is 0 85 Suppose there is a new treatment that is used to increase the...
- Q 8 6 Water A friend is tested to see whether he can tell bottled water from tap water There are 30 trials half with bottled water and half with tap...
- Q a If a rifleman s gunsight is adjusted correctly but he has shaky arms the bullets might be scattered widely around the bull s eye target Draw a sketch of...
- Q 8 5 Magic A magician claims he can cause a coin to come up heads more than 50 of the time A coin is flipped 40 times and 35 heads...
- Q 7 6 Heights of Basketball Team Suppose you find all the heights of the members of the men s basketball team at your school Could you use those data to...
- Q TRY 7 1 Parameter vs Statistic Example 1 Explain the differ ence between a parameter and a statistic
- Q 7 4 x vs The mean GPA of all 5000 students at Uneeda College is 2 78 A sample of 50 GPAs from this school has a mean of 2...
- Q during the fall and Spring semesters If there are 197 full time teaching positions available for apportionment among the three departments based on course enrollment answer each of the following...
- Q Toll Payment Method E Z Pass Cash Total Cars 527 935 1462 Trucks 316 683 999 Total 843 1618 2461 EZPass AND TICKETS 3 00 EZPass AND TICKETS 2 EZPass...
- Q C Use comparative or superlative form of the adjectives A a daki c mleleri s fatlar n st nl k veya en st nl k halleriyle tamamlay n z 25P...
- Q its customers driving records updating its rates according to the trends indicated by these records AutoWrecks records indicate that in a typical year roughly 70 of the company s customers...
- Q The following contingency table gives a summary of the data from 2000 trials of a visual experiment Each of the trials was classified according to two variables color vision of...
- Q A consumer response team hears directly from consumers about the challenges they face in the marketplace brings their concerns to the attention of financial institutions and assists in addressing their...
- Q A regional automobile dealership sent out fliers to prospective customers indicating that they had already won one of three different prizes an automobile valued at 27 000 a 75 gas...
- Q Determine the following probabilities a For n 3 and 0 15 what is P X 0 b For n 11 and 0 30 what is P X 10 c For...
- Q Researchers collect continuous data with values ranging from 0 100 In the analysis phase of their research they decide to categorize the values in different ways Given the way the...
- Q What level of measurement is household income O Ordinal O Nominal O Ratio O Interval
- Q Which of the following measures of central tendency can be used for nominal level data choose one or more Variance Standard deviation Mean Mode
- Q Which of the following descriptive statistics can be used for ratio data choose one or more Variance Standard deviation Mode Mean
- Q Per cent very happy or quite happy 80 60 40 Nom Me and Gingis Aban Americ Zimbabw P Mekdows Salvad Cate China Man Turkey Ukraine Bil Macedania Uregaty Kassian Federation...
- Q Based on this correlation matrix which of the following statements is not accurate Number of Group Infant Birthweight in grams Visits Attended Fructosamine Number of Group Visits Attended Infant Birthweight...
- Q Which of the following are nominal data choose one or more three categories low medium high of heart rate ranges five categories of race four categories of satisfaction low somewhat...
- Q What is the standard deviation s of the following set of scores 12 25 6 9 16 13 11 10 8 7 6 14 16 12 05 5 49 07
- Q Given the following data what is the correlation between age and length of sentence O 87 79 HU O 65 O 58 Respondent 1 2 3 4 Average Age x...
- Q evaluations by students from the past few years A matter of concern to her is how she is viewed by students of different majors She s decided to look at...
- Q Which of the correlations is the weakest 0 25 O 0 78 0 88 O 0 52
- Q Which of the correlations is the weakest O 0 25 O 0 78 O 0 88 O0 52
- Q Which of the following correlations would be interpreted as a moderate relationship O 45 0 3
- Q Calculate a correlation matrix for the following data Which two variables have a strong positive relationship Number of Group Visits Fructosamine Attended 152 173 174 175 176 183 188 192...
- Q When using the SUM function in Excel which of the following are you calculating
- Q Consider the following data 0 0 0 0 1 1 1 3 3 3 4 5 20 30 Which of the following statements are true choose one or more mean...
- Q A scientist has read that the mean birth weight of babies born at full term is 7 3 pounds The scientist has good reason to believe that the mean birth...
- Q Which measure s of central tendency is are affected by outliers Choose one or more Median Mean Mode
- Q Where are functions found in Excel O under the Insert tab
- Q What is a function in Excel Mathematical operations O Statistical analysis O A predefined formula OA shorthand notation
- Q When you create a formula that goes beyond a simple one you need to remember which of the following The order in which the operations appear The order in which...
- Q According to our class lecture which of the following ARE ways that statistics may be misleading chose one or more O Implied connections Skewed curves Detached statistics Suspicious samples
- Q Among the literature on quitting smoking are data detalling the relative successfulness of people of different ages in quitting smoking A study of 400 adults who began various smoking cessation...
- Q Find the final monthly payment required to pay off a loan with 900 remaining principal and a 12 annual interest rate A 912 00 B 891 00 C 909 00
- Q Westminster Financial has released a summary of investor and investment package information from the past fiscal year During this time Westminster provided a choice among several pre designed investment packages...
- Q summarized in the accompanying table Assume that the two samples are independent simple random samples selected from normally distributed populations Do not assume that the population standard deviations are equal...
- Q dom sample of subjects with high lead levels in their blood were collected The statistics are summarized in the accompanying table Assume that the two samples are independent simple random...
- Q Researchers conducted a study to determine whether magnets are effective in treating back pain Pain was measured using the visual analog scale and the results shown below are among the...
- Q gency for 500 NASDAQ stocks from last Monday Tuesday and Wednesday Each of the 500 stocks are classified according to two variables closing price movement from Monday to Tuesday Closing...
- Q In an experimental study researchers had each of their participants bet on each game of a professional football season In the contingency table below is some information from a random...
- Q The fundamental attribution error FAE in psychology is the tendency of a person to overemphasize dispositional factors and to underemphasize situational factors when attributing reasons for other people s behavior...
- Q 1 What percentage of the data are male 2 What is the mean mode median mid range maximum and minimum IQ level 3 What is the range standard deviation variance...
- Q Using the following data sets try to create the following tables either with Excel Chocolate Preference xlsx Table 1 Frequency Distribution of Gender Table 2 Frequency distribution of Chocolate Preference...
- Q Listed in the accompanying data table are student evaluation ratings of courses and professors where a rating of 5 is for excellent Assume that each sample is a simple random...
- Q Include an appropriately labeled and shaded Normal curve for each part There should be three separate curves a What is the probability that a baby will have a length of...
- Q A certain big company classifies its employees according to gender age group 6 categories and employment type 10 categories How many classifications are there Select one O a 120 O...
- Q In a professional division of a Hockey league there are 9 total teams How many different rankings are possible at the end of the year Hint there are no ties...
- Q An experiment is conducted with numbers Let S be the sample space of experiment S 1 2 3 4 5 6 7 8 9 10 11 12 with events E...
- Q At a Phil s Cafe a dinner meal is made up of an appetizer a main course a dessert and a drink The choices for the appetizer are soup or...
- Q Many everyday decisions like who will drive to lunch or who will pay for the coffee are made by the toss of a presumably fair coin and using the criterion...
- Q 6 44 Inverse Normal Standard Assume a standard Normal dis tribution Draw a separate well labeled Normal curve for each part a Find an approximate z score that gives a...
- Q Find the total number of different 4 digit numbers using all the digits in the number 4129 Hint you can t repeat digits Select one O a 24 O b...
- Q In an economics class with 30 students the teacher wants 2 different students to answer problems 4 and 9 in front of the class In how many ways can the...
- Q With the toss of a coin what is the probabilty of getting tails Select one O a 1 2 O b 1 OC 0 O d 2
- Q Listed below are speeds mi h measured from traffic on a busy highway This simple random sample was obtained at 3 30 P M on a weekday Use the sample...
- Q A knitting club has 14 members It has to send a team of 5 knitters to a knitting competition in the neighboring town Find the number of different knitting teams...
- Q 2 2 cr tical values Use the given information to find the number of degrees of freedom the and R and the confidence interval estimate of o It is XR...
- Q Time left If there are 5 finalists at a singing competition in how many ways can they be ordered if they each take turns singing Select one a 60 b...
- Q A statistician wants to analyze the time spent commuting to work in the morning To do so the statistician records the time in minutes it takes to get to work...
- Q 2 2 Use the given information to find the number of degrees of freedom the critical values and x and the confidence interval estimate of o It is reasonable to...
- Q A New York Times article reported that a survey conducted in 2014 included 36 000 adults with 3 74 of them being regular users of e cigarettes Because e cigarette...
- Q preparation products on the market StudyFocus and Prepara A researcher in the Education department at a nearby university wants to determine if there is any difference between the two products...
- Q Eternal Keisha is a buyer for a major shipping company and wants to determine if there is any difference between the two brands of tire in the mean distance in...
- Q According to the histogram which range of va contains the lowest frequency for number of tickets sold
- Q work Find the regression equation letting the first variable be the predictor x variable Using the listed actress actor ages in various years find the best predicted age of the...
- Q ompanying table lists the ages of acting award winners matched by linear correlation between the two variables Should we expect that there would be a correlation Use a significance level...
- Q K The accompanying table lists the ages of acting award winners matched by the years in which the awards were won Construct a scatterplot find the value of the linear...
- Q Using the latest in medical technology an orthopedic doctor has developed a new surgical procedure that he believes is an improvement over the standard procedure He wants to study whether...
- Q A fish story The mean length of one year old spotted flounder in millimeters is 120 with standard deviation of 19 and the mean length of two year old spotted...
- Q 10 Managers rate employees according to job performance and attitude The results for several randomly selected employees are given below Use the given data to find the equation of the...
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