If there are 48 data points in a set of data, what is the number of degrees of freedom? (Enter an exact number as an integer, fraction, or decimal.)
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If there are 48 data points in a set of data, what is the number of degrees of freedom? (Enter an exact number as an integer, fraction, or decimal.)
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- At the entrance to one of the residence halls on campus, the residents can choose to enter one of three doors. Custodians noticed that door #3 was frequently broken and suggested that more students used that door because it has a hands free mechanism. Students counted the number of students entering each door on a given day to see if the custodians were right. Use Chi-Square to determine if the custodians were right Door Students Entering 1 60 2 56 3 94A new smartphone comes in five colors, two screen sizes, and four different data plans. In how many ways can this smartphone be ordered?A polling company reported that 53% of 2302 surveyed adults said that they play football. Complete parts (a) through (d) below. a. What is the exact value that is 53% of 2302? The exact value is (Type an integer or a decimal.) b. Could the result from part (a) be the actual number of adults who said that they play football? Why or why not? OA. Yes, the result from part (a) could be the actual number of adults who said that they play football because the polling numbers are accurate. OB. No, the result from part (a) could not be the actual number of adults who said that they play football because that is a very rare activity. OC. Yes, the result from part (a) could be the actual number of adults who said that they play football because the results are statistically. significant. O D. No, the result from part (a) could not be the actual number of adults who said that they play football because a count of people must result in a whole number. c. What could be the actual number of adults…
- Use the following results from a test for marijuana use, which is provided by a certain drug testing company. Among 141 subjects with positive test results, there are 30 false positive results. Among 155 negative results, there are 3 false negative results. Complete parts (a) through (c). (Hint: Construct a table.) a. How many subjects were included in the study? The total number of subjects in the study was b. How many subjects did not use marijuana? A total of subjects did not use marijuana. c. What is the probability that a randomly selected subject did not use marijuana? The probability that a randomly selected subject did not use marijuana is (Do not round until the final answer. Then round to three decimal places as needed.)In a survey of 3428 adults aged 57 through 85 years, it was found that 87.6% of them used at least one prescription medication. Complete parts (a) through (c) below. ..... a. How many of the 3428 subjects used at least one prescription medication? (Round to the nearest integer as needed.)A polling company reported that 37% of 2286 surveyed adults said that they play basketball. Complete parts (a) through (d) below. a. What is the exact value that is 37% of 2286? The exact value is (Type an integer or a decimal.) b. Could the result from part (a) be the actual number of adults who said that they play basketball? Why or why not? O A. No, the result from part (a) could not be the actual number of adults who said that they play basketball because a count of people must result in a whole number. O B. Yes, the result from part (a) could be the actual number of adults who said that they play basketball because the results are statistically significant. O C. No, the result from part (a) could not be the actual number of adults who said that they play basketball because that is a very rare activity. O D. Yes, the result from part (a) could be the actual number of adults who said that they play basketball because the polling numbers are accurate. c. What could be the actual…
- Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5by which criteria?In the provided table, the education information and incomes of 73,736 people are given. The rows are labeled with education status and the columns are labeled with income range. The total of all entries in each row gives the total number of people with the corresponding education status and similarly, the total of all entries of a particular column gives the number of people with the corresponding income range. Please answer subpart 4 and 5.
- A polling company reported that 53% of 1013 surveyed adults said that secondhand smoke is "quite annoying." Complete parts (a) through (d) below. a. What is the exact value that is 53% of 1013? The exact value is (Type an integer or a decimal.) b. Could the result from part (a) be the actual number of adults who said that secondhand smoke is "quite annoying"? Why or why not? O A. Yes, the result from part (a) could be the actual number of adults who said that secondhand smoke is "quite annoying" because the results are statistically significant. B. No, the result from part (a) could not be the actual number of adults who said that secondhand smoke is "quite annoying" because that is a very rare opinion. O C. No, the result from part (a) could not be the actual number of adults who said that secondhand smoke is "quite annoying" because a count of people must result in a whole number. D. Yes, the result from part (a) could be the actual number of adults who said that secondhand smoke is…At a certain university, 77.6% of 20,712 students were undergraduates in fall semester of a given year. How many undergraduates were there? There were O undergraduates. (Round to the nearest person as needed.) Activate WindowsA standard-issue 2020 New Jersey license plate had one letter, then two digits, followed by three letters. New Jersey DOO SPA Garden State These plates were not allowed to have letters D, T, or X in the fourth position, or the letters I, O, or Q in any position. With these restrictions, how many different license plates were possible in 2020?
