Statistics question and answers for January 09, 2024
- Q You may need to use the appropriate appendix table or technology to answer this question Market share analysis company Net Applications monitors and reports on internet browser usage According to...
- Q Here is a sample data set 17 8 45 16 28 50 46 13 0 a Find the smallest number Minimum from the data set b Find the first quartile...
- Q o MY NOTES According to a 2017 Wired magazine article 40 of emails that are received are tracked using software that can tell the email sender when where and on...
- Q Run a regression analysis on the following bivariate set of data with y as the response variable X y 60 9 27 7 88 4 140 1 56 4 17...
- Q 5 10 15 data 20 25 I to 30 Based on the boxplot above identify the 5 number summary 0 0 0 0 0
- Q Below is a sample data set 20 11 36 33 26 Find the median 42 5
- Q You may need to use the appropriate appendix table or technology to answer this question For a two tailed hypothesis test with a sample size of 38 and a 0...
- Q You may need to use the appropriate appendix table or technology to answer this question Consider the following hypothesis test Ho 17 H 17 A sample of 81 provides a...
- Q p Confidence Level 90 95 100 99 given percentage 100 a a 2 According to the table for a 95 confidence level we have Za 2 1 96 0 10...
- Q You may need to use the appropriate appendix table or technology to answer this question Sixty eight percent of online courses taught at community colleges nationwide were taught by full...
- Q In the past 26 of all homes with a stay at home parent had the father as the stay at home parent An independent research firm has been charged with...
- Q Are all batteries created equal An experiment was carried out to determine this Two brand name battery companies and a generic company were compared D batteries were put into flashlights...
- Q b The desired margin of error is 0 06 CHER You may need to use the appropriate appendix table or technology to answer this question The U S Energy Information...
- Q Use the data values in the table below to calculate the correlation between the variables x and y X y 8 05 9 8 25 9 1 8 65 5...
- Q Independent random samples of managers yearly salaries in 1 000 taken from governmental and private organizations provided the following information Test to determine if there is a sig difference between...
- Q 5 The following ordered pairs t 1 represent the Olympic year I and 400 meter freestyle swimming event 1952 5 20 1956 4 91 1960 4 84 1964 4 72...
- Q Based on the data shown below calculate the correlation coefficient to three decimal places X y 32 2 35 4 35 2 38 8 4 5 6 7 8 41...
- Q Tutorial Exercise Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and pre preview ads before the...
- Q Step 9 is not sufficient evidence to conclude that the population proportion is less than 0 85 p 0 85 c p 0 80 Recall the previously determined values po...
- Q Which of the following pairs of variables is likely to have a negative correlation Check all that apply The speed of a car and the time to its destination A...
- Q The scatter plot shows the relationship between the number of minutes studying for a test x and the number of mistakes made y The graph shows the scatterplot of the...
- Q As Swiss cheese matures a variety of chemical processes take place The taste of matured cheese is related to the concentration of several chemicals in the final product In a...
- Q Are all batteries created equal An experiment was carried out to determine this Two brand name battery companies and a generic company were compared D batteries were put into flashlights...
- Q You may need to use the appropriate appendix table or technology to answer this question A random sample of 97 tourists in Chattanooga showed that they spent an average of...
- Q Match each scatterplot shown below with one of the four specified correlations 9 O 8 9 Q OQ a 0 29 b 0 90 c 0 97 d 0 25
- Q each scatterplot shown below with one of the four specified correlations 00 O sg 8 5 0 80 oo 00 8 oo 080 80 80 08 0 Q Q a...
- Q If there is strong correlation between two variables it is definitely true that one is causing the other O False True
- Q Here are the scatter plots for two sets of bivariate data with the same response variable The first compares the variables x y The second compares the variables w y...
- Q A correlation of r 85 is found between weekly sales of firewood and cough drops over a 1 year period Which of the following is true O a There is...
- Q What italicized letter represents correlation Ot Or Oz Os O
- Q Negative linear relationships are represented by values of the correlation r that are O greater than zero O less than zero O zero
- Q 10 15 NPV calculation Calculate the NPV given the following free cash flows if the appropriate required rate of return is 10 percent YEAR 0 1 2 4 56 CASH...
- Q You may need to use the appropriate appendix table or technology to answer this question An official of a large national union claims that the fraction of women in the...
- Q Is the average time we shower the same Two hundred and fifty randomly selected citizens from Brazil United States and Germany were asked to report the length of time minutes...
- Q In October 2021 Pew Research surveyed 9 676 Americans and how they see the availability of affordable housing in their local community Here are the results below Men Women Total...
- Q Independent random samples of managers yearly salaries in 1 000 taken from governmental and private organizations provided the following information Test to determine if there is a significant difference between...
- Q Are all batteries created equal An experiment was carried out to determine this Two brand name battery companies and a generic company were compared D batteries were put into flashlights...
- Q Which summary statement best reflects the findings of the hypothesis test above The sample data suggests that the mean lifetime of the batteries for the the 3 types are not...
- Q A Tax Prep Time hrs 7 B 0 1 2 33 34 35 36 37 38 618949 39 40 35 3 30 5 37 4 26 5 13 49 9...
- Q In the past 26 of all homes with a stay at home parent had the father as the stay at home parent An independent research firm has been charged with...
- Q You may need to use the appropriate appendix table or technology to answer this question Consider the following hypothesis test H Hi H2 S 0 H Mi M2 0 The...
- Q Now we are to find the probability of receiving 10 calls in a 20 minute interval It is given that on average 36 calls are received per hour so this...
- Q According to a research center 13 of all merchandise sold in a particular country gets returned A department store in a certain city sampled 80 items sold in January and...
- Q You may need to use the appropriate appendix table or technology to answer this question Sixty eight percent of online courses taught at community colleges nationwide were taught by full...
- Q Which of the following is NOT a requirement to satisfy the conditions for ANOVA All samples are dependent of one another Each group represents a simple random sample from its...
- Q When using a chi square test of independence what percent of the cells in the contingency table must have expected frequencies greater than 5 at least 50 at least 60...
- Q 12 66 of adults cannot name a supreme court justice You randomly select five adults and ask each if they can name any of the justices The random variable represents...
- Q rounding the result to two decimal places P Po Z Po 1 PO n 0 82 0 85 1 06 0 85 10 85 160 1 06 0 85 Step...
- Q 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 82 Use these values...
- Q The value for po is the hypothesized population proportion we are testing for Here we have po n 160 0 85 Z P Po Po 1 Po n 160 Step...
- Q unch to upd What percentage of the population live in their state of birth According to the U S Census Bureau s 2014 American Community Survey the figure ranges from...
- Q You may need to use the appropriate appendix table or technology to answer this question Sixty eight percent of online courses taught at community colleges nationwide were taught by full...
- Q You may need to use the appropriate appendix table or technology to answer this question At 95 confidence how large a sample should be taken to obtain a margin of...
- Q a p 0 78 Before a p value can be found the test statistic must be calculated and the type of test must be determined The following hypotheses were given...
- Q The null hypothesis Ho A states that the difference between sample means is statistically significant B states that the difference between sample means is due to the independent variable D...
- Q The four characteristics of distributions are A central tendency variability skewness and kurtosis B range sum of squares variance and standard deviation nominal ordinal interval and ratio D measurement probability...
- Q When two outcomes cannot both be true they are said to be A mutually exclusive B exhaustive C significant D skewed
- Q Which of the following is not a criterion of relatedness A participants are randomly assigned to treatment groups B participants are related by blood genetic matching participants are matched on...
- Q 3 pts We want to construct a 90 confidence interval estimating the average resting heart rate for a newborn baby If the population standard deviation is o 19 beats per...
- Q 7 pts We want to estimate with 95 confidence the average daily sales by various box stores during the holiday season We take a random sample of 45 box stores...
- Q 8 pts We want to estimate the proportion of University of Montana Missoula College students who support a new bill regarding minimum wage We collect a simple random sample from...
- Q 5 8 pts The amount of time students spend on a statistics assignment has a standard deviation of o 11 minutes If we take a random sample of 36 students...
- Q 1 Twelve percent of people in a city eligible to donate blood actually do You randomly select four eligible blood donors and ask them if they donate blood Complete parts...
- Q Obama in 2010 was the most significant regulatory reform of the United States healthcare system since the passage of Medicare and Medicaid in 1965 The law was designed to expand...
- Q Out of 300 people sampled 75 had children Based on this construct a 90 confidence interval for the true population proportion of people with children Preliminary a Is it safe...
- Q Obama in 2010 was the most significant regulatory reform of the United States healthcare system since the passage of Medicare and Medicaid in 1965 The law was designed to expand...
- Q In a survey funded by the University of Washington School of Medicine 507 of 1 300 adult Seattle residents said they did not believe they could come down with a...
- Q A political candidate has asked his her assistant to conduct a poll to determine the percentage of people in the community that supports him her If the candidate wants a...
- Q Translate the following scenario into an algebraic equation and then solve Use j for your variable to represent journals Jamie bought a total of 7 textbooks at the bookstore She...
- Q Write 2 002 10 9 in standard notation
- Q x 9 10 9 8 7 6 54 3 2 1 0 1 2 3 4 5 6 7 8 9
- Q Enter or in the box below 4 8
- Q Rewrite this number in appropriate scientific notation 0 000000354 answer
- Q z 6 6
- Q Enter or in the box below 8 7
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