11. A study compared five different methods for teaching descriptive statistics. The five methods were traditional lecture and discussion, programmed textbook instruction, programmed text with lectures, computer instruction, and computer instruction with lectures. 45 students were randomly assigned, 9 to each method. After completing the course, students took a 1-hour exam. Which of the following is the correct degrees of freedom for an F-test for evaluating if the average test scores are different for the different teaching methods? dfg = 4, dfg = 40 dfg = 5, dfg = 45 O dfc = 40, dfE = 4 dfc = 4, dfE = 44 dfc = 45, dfe = 4

The following set of data represents the number of orders filled by a national-chain restaurant during a two week period. Construct a five number summary for the the data.   66, 75, 68, 89, 86, 73, 67, 75, 75, 82, 85, 74, 67, 61 (Round to the nearest hundredth, if needed).    Min _________________ Lower Quartile _________________ Median __________________ Upper Quartile _________________ Maximum __________________   What is the range and the interquartile range (IQR)?  Range __________________ Interquartile Range (IQR)  ___________________

You collect data on number of hours spent studying, on average, throughout the Fall 2019 semester for all Stonehill students. You have a colleague at the College of the Holy Cross in Worcester, MA who collects the same data at Holy Cross. You want to compare the average number of hours spent studying during the Fall 2019 semester for male students at Stonehill, female students at Stonehill, male students at Holy Cross and female students at Holy Cross. Which statistical test would you use to compare the students at Stonehill and Holy Cross to look for significant differences in study time? a. one sample t test b. two sample t test c. repeated measures t test  d. ANOVA

Suppose you have collected data on 1000 customers who visited your company's website last week. For each customer, the time spent on the page and the total amount of customer purchases during the visit were recorded. You want to explore the relationship between these two variables. What is the explanatory variable and what is the response variable? to. Explanatory: Time spent on the page Answer: Total amount of purchases b. It is not possible since neither explains c. Answer: Time spent on the page Explanatory: Total amount of purchases

Ask a Question | bartleby Karnataka Board Class 11th Stat × Karnataka Board Class 11th Stat × + I selfstudys.com/books/karnataka/state-books/class-11th/statistics/statistics-part-1/328854 34. In a sample study regarding smoking habit in a town, the following data were obtained: Men population = 58% Smokers = 22% Men smokers = 18% 1 Tabulate the above data. Join Whatsapp For Exclusive Content Search 89/100 myhp Join Telegram For Exclusive Content 0 1 x 21:58 ENG IN 20-08-2024 PRE

3. Explain the concept of mode in statistics.

Winston has just gone grocery shopping. The mean cost for each item in his bag was $3.48. He bought a total of 9 items, and the prices of 8 of those items are listed below: $2.75,$4.06,$3.16,$3.92,$4.29,$2.77,$3.01,$4.57 Determine the price of the 9th item in his bag.

The Sales Manager wants to know which personality dimension scale, extraversion or conscientiousness, is the best predictor of her employees’ 2019 dollar sales performance. What statistical test should she use to analyze the data? a. Correlation b. Chi Square Test of Independence c. Independent Samples t-test d. One sample t-test e. One Way ANOVA

Question 3. A researcher wished to gauge public opinion on gun control. He randomly selected 1000 people from the list of registered voters and asked them the following question: Do you believe that gun control laws which restricts the ability of Ghanaians to protect their families should be eliminated? i. Identify the two instances of inappropriate use of statistics in the approach used by the researcher. ii. Suggest a remedy for improving the approach used by the researcher.