Statistics question and answers for January 10, 2024
- Q 77 An article in the San Jose Mercury News stated that students in th California state university system take 4 5 years on average to finish their undergraduate degrees Suppose...
- Q A certain statistics instructor participates in triathlons The accompanying table lists times in minutes and seconds he recorded while riding a bicycle for five laps through each mile of a...
- Q Suppose you model a game of chance with a discrete probability distribution Let X be the net amount o money won or lost by the player Let P X be...
- Q Midsize Large and SUV with measured amounts of left leg femur force kN resul in the following Minitab display Using a 0 05 significance level test the claim that th...
- Q A data set includes the counts of chocolate chips from three different types of Chips Ahoy cookies The accompanying StatCrunch display shows results from analysis c variance used with those...
- Q Given the following Linear Regression model Pounds of Trash Per Household 1 5 x Person 1 5 How many pounds of trash are created by a household of 5 Edit...
- Q Given the following Linear Regression model Pounds of Trash Per Household 1 5 x Person 1 5 What is the slope Edit View Insert Format Tools Table
- Q Find the standard deviation for the random variable X 5 3 7 9 14 P X x 0 23 0 23 0 24 0 15 0 15 X 6 165887121899...
- Q Which of the following is NOT true Choose the correct answer below CERED O A When testing for equality of three population means do not use multiple hypothesis tests with...
- Q 0 2 0 3 0 1 0 35 0 05 2 6 7 10 13 Find the expected value of the above random variable
- Q Find the expected value for the random variable X 3 1 7 11 13 P X x 0 14 0 22 0 17 0 24 0 23 8 07 04...
- Q X P x 0 0 2003 1 0 1503 0 0003 0 6491 2 3 Find the mean of this probability distribution Round your answer to 4 decimal p
- Q X 0 1 2 3 P x 0 25 0 1 0 2 0 45 Find the standard deviation of this probability distribution Give your answer to 4 decim
- Q The Insure com website reports that the mean annual premium for automobile insurance in the United States was 1 503 in March 2014 Being from Pennsylvania at that time you...
- Q 66 State the Type I and Type II errors in complete sentences given the following statements a The mean number of years Americans work before retiring is 34 b At...
- Q You may need to use the appropriate appendix table or technology to answer this question According to an article in Newsweek the natural ratio of girls to boys is 100...
- Q mean work week has increased for Women at the 5 per 80 Your statistics instructor claims that 60 percent of the students who take her Elementary Statistics class go through...
- Q many hours per week they spend on the phone The sample mean was 4 75 hours with a sample standard deviation of 2 0 Conduct a hypothesis test The null...
- Q 63 A recent survey of 273 randomly selected teens living in Massachusetts asked about social media Sixty three said that they routinely use a certain app to share pictures The...
- Q 72 It is believed that Lake Tahoe Community College LTCC Intermediate Algebra students get seven hours of sleep per night on average A survey of 22 LTCC Intermediate Algebra students...
- Q Write 2 002 10 9 in standard notation
- Q 69 A statistics instructor believes that fewer than 20 percent of Evergreen Valley College EVC students attended the opening midnight showing of the latest Harry Potter movie She surveys 84...
- Q 68 When a new drug is created the pharmaceutical company must subject it to testing before rec necessary permission from the U S Food and Drug Administration FDA to market...
- Q 62 Some of the following statements refer to the null hypothesis some to the alternate hypothesis State the null hypothesis Ho and the alternative hypothesis Ha in terms of the...
- Q princely salaries of his faculty He has talked with the football coach and the coach thinks that the llege is worried as always about having enough money to pay the...
- Q You are investigating a complaint that the Yummy Junk Food Company s 10 ounce packages of barbecue flavored potato chips contain less than a full 10 ounces of the product...
- Q idea she administers a different dose of caffeine to each of three groups of participants She then gives each group a short term memory test and counts the number of...
- Q all your work and provide complete interpretations Write the formula first plug in the values and then solve Please write legibly If you use additional paper number the pages and...
- Q 2 A psychologist wonders if it is true that red headed people have hotter tempers than people with other hair colors She administers a test that measures the tendency toward...
- Q d p 0 89 Recall the previously determined values po 0 85 and n 160 Now we are to find the test statistic for a new sample proportion p 0...
- Q What is the relationship between the amount of time statistics students study per week and their final exam scores The results of the survey are shown below Time 16 7...
- Q Complete the truth table for the given statement by filling in the required columns qvp pq TT TF FT F F q Complete the truth table qvp
- Q Construct a truth table for the given statement q p q Fill in the truth table PT T T q T F T q p q q p q
- Q The circle graph shows the most important problems for the 19 175 341 high school teenagers in a country Without using a calculator estimate the number of high school teenagers...
- Q 4 Create a sample tree showing conditional probabilities for drawing 4 balls randomly out of a sock with 3 green and 7 yellow balls without replacement S JOLAS PASS
- Q Suppose that you decide to buy a car for 27 635 including taxes and license fees You saved 8000 for a down payment and can get PA nt four year...
- Q a Compute the value of the test statistic A sample of 58 items provided a mean of x 13 and a standard deviation of s 6 5 The hypotheses are...
- Q Nathan is investigating how long his phone s battery lasts in hours for various brightness levels on a scale of 0 100 His data is displayed in the table and...
- Q Aidan is investigating how long his phone s battery lasts in hours for various brightness levels on a scale of 0 100 His data is displayed in the table and...
- Q Which scatter plot indicates a perfect positive correlation A D The graph B E shows a scatter plot with a perfect positive correlation C F
- Q Step 11 If the found p value is less than or equal to a given level of a then the null hypothesis will be rejected in favor of the alternative...
- Q The bar graph shows that life expectancy the number of years newborns are expected to live in a particular region has increased dramatically since ancient times Find the percent increase...
- Q Hunter is investigating how long his phone s battery lasts in hours for various brightness levels on a scale of 0 100 His data is displayed in the table and...
- Q A single die is rolled twice The 36 equally likely outcomes are shown to the right Find the probability of getting two numbers whose sum is 2 First Roll Second...
- Q A questionnaire was given to students The first question asked was How stressed have you been in the last week on a scale of 0 to 10 with 0 being...
- Q A professor had students keep track of their social interactions for a week The number of social interactions over the week is shown in the following grouped frequency distribution How...
- Q Z P Po Po 1 PO n 0 80 0 85 1 77 0 85 10 85 160 1 77 Step 10 A lower tail test is being performed so...
- Q Find a the mean b the deviation from the mean for each data item and c the sum of the deviations in part b for the following group of data...
- Q The time required to assemble a single Play Station 5 is approximately normally distributed with 15 44 minutes and o 1 2 minutes A random sample of 19 Play Station...
- Q 21 A day of the week is to be chosen at random from the 7 day week Let event A be that a day from the 5 day work week...
- Q NOTE This problem has many steps You are asked to enter intermediate values in the process These answers will require a fixed number of decimal points However you MUST ALWAYS...
- Q The Acme Company manufactures widgets The distribution of widget weights is bell shaped The widget weights have a mean of 45 ounces and a standard deviation of 7 ounces Use...
- Q The actual volumes of quart size jars of Hellmann s mayonnaise are uniformly distributed from 31 46 to 32 59 fluid ounces Find the average volume of a quart size...
- Q The values of a particular distribution are uniformly distributed between 3 and 7 Write answer as a fraction or as a decimal rounded to at least 2 places 2 DIE...
- Q Consider the density curve plotted below PDF X 0 275 0 25 0 225 Q3 0 2 IQR 0 175 0 15 0 125 0 1 0 075 0 05...
- Q The following table is for all pets in the village of MakeBelieve Age 7 years Age 7 years Totals Dogs Cats Totals In Make Believe the probability the age of...
- Q 20 points A basketball player has a 62 chance of making each free throw What is the probability that the player makes exactly four out of six free throws 32...
- Q A class has 20 students What is the probability that at least 5 students were born on a weekend 45 82 72
- Q The following table is similar to the table that appears in Example 12 4 The What You Know information has been provided Complete the table by filling in the How...
- Q Suppose an article describes results from a representative sample of American adults in 2018 and an independently selected representative sample of American adults taken in 2019 Survey participants were asked...
- Q A sign in the elevator of a college library indicates a limit of 16 persons In addition there is a weight limit of 2 500 pounds Assume that the average...
- Q A government agency reported that in 2020 6 0 of people with a bachelor s degree and 9 5 of people with a high school diploma but no college were...
- Q thing about the value of the population mean reading grade level for apps available for purchase that are targ toward young people The following table is similar to the table...
- Q PRACTICE ANOTHER A paper summarizes data from 61 young children living in a particular county in a particular state who had their blood lead levels measured as part of a...
- Q 1 Points DETAILS PECKSTAT3 12 2 032 MI S USE SALT MY NOTES A manufacturer of college textbooks is interested in estimating the strength of the bindings produced by a...
- Q A report about how American college students manage their finances includes data from a survey of college students Each person in a representative sample of 793 college students was asked...
- Q An article describes surveys of representative samples of rural and urban adult Americans Of 527 urban adults 197 reported that they use the Internet almost constantly In the sample of...
- Q TICE ANOTHER Students in a representative sample of 69 second year students selected from a large university in England participated in a study of academic procrastination Each student in the...
- Q 4 The formula used to calculate a confidence interval for the mean of a normal population is x t critical value What is the appropriate t critical value for each...
- Q W Chapter 11 Quiz MATH1123 section OB Fall 2023 WebAssign A report summarizes a survey of people in two independent random samples One sample consisted of 600 young adults age...
- Q A report summarizes data from independent representative samples of approximately 1 000 people in each of 28 different countries The report asked people if they thought that in general teachers...
- Q MY NOTES Many people believe that they experience information overload in today s digital world A report describes a survey in which people were asked if they feel overloaded by...
- Q Suppose an article states People ages 35 to 54 were the least likely group to report buckling up in the back seat Seventy four percent of this group reported always...
- Q A company surveyed adult Americans about their consumer debt They reported that 48 of Millennials those born between 1981 and 1996 and 59 of Gen Xers those born between 1965...
- Q A report on food science states that younger adults are more likely to see foods with genetically modified ingredients as being bad for their health than older adults This statement...
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