Statistics question and answers for October 28, 2023
- Q The following bar chart shows the activities to complete a project in 6 months each column represents 1 month The total project cost is 1 480 Activity ABC D E...
- Q Critique the following graph Give reasons as to why this graph is misleading What could have been done to make it a good graph Why would someone have made the...
- Q 7 The number of daylight hours for Iqaluit Nunavut is displayed by month January month 1 Daylight h 20 15 10 5 2 3 Daylight Hours in Iqaluit Nunavut 9...
- Q Find the value of z that would be used to test the difference between the proportions given the following Use G H Give your answer correct to two decimal places...
- Q 0 1 2 3 A survey of 125 students yields the following data for the number of classes they took in the Spring Number of classes taken Frequency of students...
- Q one thousand people in the population and the female life expectancy y in years are given These data are displayed in the Figure 1 scatter plot Also given is the...
- Q For 7 8 find the slopes of the graphs provided 8 7 4 3 2 y 1 2 3 4 x 4 31 2 1 y 10 1 2 3...
- Q means 10 0 7 5 5 0 2 5 0 0 9 5 5 IV2 X IV1 The above graph shows 4 means that are the outcome of a 2x2...
- Q A 2 According to the Venn Diagram above P A P B Select Select P A B P A B 1 Select Select 4 V 3 B
- Q 9 4 y www Q Given the line and points above state the equation of the line in the fo 14 15 x
- Q H Ontext A physician visit has estimated its expected reimbursement and variable cost per visit and total fixed cost roblem Using the table below calculate breakeven output given the information...
- Q May 21 9 46 05 PM Watch help video Magan has a bag that contains pineapple chews cherry chews and lime chews He performs an experiment Magan randomly removes a...
- Q statistics consists of organizing and summarizing information collected while d measure the reliability of the results statistics uses methods that generalize results obtained from a sample to the population inferential...
- Q The data to the right contain the state cigarette tax in for all 20 regions of a country Complete parts a and b G a Compute the population mean and...
- Q The following is a set of data for a population with N 10 10 12 10 6 4 10 9 5 10 9 a Compute the population mean b Compute...
- Q If P B 0 75 P A B 0 50 P B 0 25 and P A B 0 60 find P B A P B A Round to three...
- Q Construction company A is determining whether it should submit a bid for a new shopping center In the past their main competitor construction company B has submitted bids 70 of...
- Q A lock on a bank vault consists of three dials each with 50 positions In order for the vault to open each of the three dials must be in the...
- Q How many different ways can a senior project manager and an associate project manager and a technician be selected for an analytics project if there are thirteen data scientists availa...
- Q A daily lottery is conducted in which 4 winning numbers are selected out of 39 numbers without duplication How many different combinations of winning numbers are possible There are different...
- Q preparation products on the market Study Focus and Prepara A researcher in the Education department at a nearby university wants to estimate the difference between the mean score on the...
- Q An orange grower is introducing a new variety of orange The grower claims that the new oranges have a mean pH of 4 8 To test the claim an independent...
- Q just hit the market Ripped and Gainz She wants to estimate the difference between the mean amount of weight gained in kg by the people who take Ripped and the...
- Q 4 43 Assume that a randomly selected subject is given a bone density test Those test scores are normally distributed with a mean of 0 and a standard deviation of...
- Q When a scientist conducted a genetics experiments with peas one sample of offspring consisted of 909 peas with 686 of them having red flowers If we assume as the scientist...
- Q Thirty two people were chosen at random from employees of a large company Their commute times in hours were recorded in a table shown on the right Construct a frequency...
- Q The table on the right gives the annual income for eight families in thousands of dollars Find the mean and standard deviation for family income thousand dollars Round to three...
- Q a What is the probability that a baby will have a length of 20 4 inches or more b What is the probability that a baby will have a length...
- Q 6 76 Texting While Driving According to a Pew poll in 2012 58 of high school seniors admit to texting while driving Assume that we randomly sample two seniors of...
- Q 6 75 Drunk Walking You may have heard that drunk driving is dangerous but what about drunk walking According to federal information reported in the Ventura County Star on August...
- Q 6 43 Inverse Normal Standard Assume a standard Normal dis tribution Draw a separate well labeled Normal curve for each part a Find the z score that gives a left...
- Q 1 20210401 634615 Los Angeles Dodgers 2 20210401 634615 Colorado Rockies 3 20210401 634618 Arizona Diamondbacks 4 20210401 634618 San Diego Padres 5 20210401 634622 Atlanta Braves 6 20210401 634622...
- Q If np 5 and nq 5 estimate P fewer than 4 with n 14 and p 0 5 by using the normal distribution as an approximation to the binomial distribution...
- Q In a study of 274 947 cell phone users it was found that 95 developed cancer of the brain or nervous system Assuming that cell phones have no effect there...
- Q for voters in Rising Falls County is approximately normally distributed An article for the newspaper Keeping It Political claimed that the mean of this population is 6 45 km You...
- Q Tey mig find the mean number of extra credit points her fellow students earned on a statistics chapter test She collects data from 11 students in her class The graph...
- Q Recall the sample space for rolling an eight sided dice and flipping a coi H1 H2 H3 H4 H5 H6 H7 H8 T1 T2 T3 T4 T5 T6 T7 T8...
- Q Recall from the previous practice the question where a group of community members responded to the question Should our town build new high school The following two way table can...
- Q with similar designs Since Fundash was built on rougher terrain the designer of the courses suspects that the mean completion time of Fundash is greater than the mean completion time...
- Q al all a math placement test For this year s test the district has prepared two possible versions Version 1 that covers more material than last year s test and...
- Q An airline is trying two new boarding procedures Option I and Option 2 to load passengers onto their Long Beach LGB to San Francisco SFO flights Since Option 1 has...
- Q An airline is trying two new boarding procedures Option 1 and Option 2 to load passengers onto their Long Beach LGB to San Francisco SFO flights Since Option 1 has...
- Q All with similar designs Since Fundash was built on rougher terrain the designer of the courses suspects that the mean completion time of Fundash is greater than the mean completion...
- Q The General Social Survey is an annual survey given to about 1500 U S adults selected at random A recent survey contained the question How important to your life is...
- Q A researcher studied iron deficiency anemia in women in each of two developing countries Differences in the dietary habits between the two countries led the researcher to believe that anemia...
- Q In a random sample of 263 potential voters registered in the state of Florida 81 indicated that they planned to vote in the next general election In an independently chosen...
- Q peop living at altitudes above and below 10 000 feet Elevation Below 80 bpm Above 10 000 ft 3 Below 10 000 ft 16 total 19 esting heart rate in...
- Q that their newest model of battery has a mean lifetime of 20 years To test the company s claim a competitor has selected 37 of these batteries at random The...
- Q 15 Find the y intercept of the median median line for the dataset in the table 1 point x y 1 2 3 5 8 15 16 16 18 18...
- Q 5 Construct a scatterplot and identify the mathematical model that best fits the data Assume that the model is to be used only for the scope of the given data...
- Q 13 Construct a scatterplot for the given data x 1 7 2 4 1 5 6 7 4 2 y 7 1 7 5 2 3 2 1 5 3...
- Q 2 Which of the following would be considered an example of a matched pair or paired data 1 point Oa retail store s sales from each month last year compared...
- Q 1 A company produces packages of granola and has changed its recipe It claims that the proportion of almonds in the new recipe is greater than in the previous recipe...
- Q 9 Assume that a simple random sample has been selected from a normally distributed population and test the given claim Use either the traditional method or P value method as...
- Q 19 Construct an x chart Answer the questions associated with each given data set n 2 3 4 5 6 7 8 9 10 Sample 1 2 3 4 5...
- Q Express the null hypothesis and the alternative hypothesis in symbolic form Use the correct symbol p o for the indicated parameter The manufacturer of a refrigerator system of a refrigerator...
- Q You conduct a simulation regarding how many registered voters voted in the last election Your 1 point null hypothesis is that the percentage of people who voted is less than...
- Q 5 Assume that the data has a normal distribution and the number of observatio greater than fifty Find the critical z value used to test a null hypothesis a 0...
- Q Do one of the following as appropriate a Find the critical value Za 2 b find th critical value ta 2 c state that neither the normal nor the t...
- Q Ty mean reco weeks is typical With a new style of physical therapy a researcher claims that the mean recovery time is less than 9 weeks In a random sample...
- Q believes that the game will be liked by players In particular the studio claims that the mean player rating will be higher than 75 In a random sample of 37...
- Q pping I was not I d be interested in signing up for a subscription to a yoga app I fall into the category of people who have a membership at...
- Q mear test the company s claim a competitor has selected 62 of these batteries at random The mean lifetime of the sample is 13 9 years Suppose the population standard...
- Q Over the years the mean customer satisfaction rating at a local restaurant has been 80 The restaurant was recently remodeled and now the management claims the mean customer rating is...
- Q 2 What does one assume when using the relative frequencies of past events to predict future events For example when calculating the probability of a student passing the next assignment...
- Q A sample of computer tablet batteries has a mean battery life of 28 months and standard deviation of 4 months What is the lifespan of batteries that are within the...
- Q The data below show sport preference and age of participant from a random sample of members of a sports club Is there evidence to suggest that they are related Frequencies...
- Q Greenspan National Park hikes during their visit is 30 kilometers The park recently closed its shuttle system which used to transport hikers to many of the park s most popular...
- Q Migraine and Acupuncture A migraine is a particularly painful type of headache which patients sometimes wish to treat with acupuncture To determine whether acupuncture relieves migraine pain researchers conducted a...
- Q A researcher is interested in investigating whether living situation and pet ownership are dependent The table below shows the results of a survey Frequencies of Living Situation and Pet Single...
- Q Based on advancements in drug therapy a pharmaceutical company is developing Resithan a new treatment for depression A medical researcher for the company is studying the effectiveness of Resithan as...
- Q Do men and women select different breakfasts The breakfasts ordered by randomly selected men and women at a popular breakfast place are shown below Frequencies of Breakfasts for Men and...
- Q With a new style of physical therapy a researcher claims that the mean recovery time is less than 13 weeks In a random sample of 32 knee surgery patients who...
- Q An endangered species of birds has a current population of 4200 It is estimated that the population decreases by 4 8 each year a Write an equation to estimate y...
- Q restaurant has been 79 The restaurant was recently remodeled and now the management claims the mean customer rating is not equal to 79 In a sample of 51 customers chosen...
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