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Submit tUST Conduct the towing best at the 0.10 level of significance by determining (a) the null and alternative hypotheses, (b) the fast stistic, and (c) the P-value, Assume that the samples were obtained independently using simple random sampling Test whether p, Sample data are x30, m, 255, ₂38, and n=301 (a) Delarmine the mu and alternative hypotheses. Choose the correct answer below OA H₂P, P versi H, P₂ OBMP, 0 versus H₂PO OCMP₁ *Py versus H, PP₂ Oo. HPP versus HP b) The last statistici (Round to two decimal places as needed) ( The Pais (Round to three decimal places as needed) Test the null trypothesis. Choose the correct conclusion below ue OA Reject the null hypothesis because there is not sufficient evidence to conclude that p OB Reject the ul hypothesis because there is sufficient evidence to condude that p;#P₂ OcDont mul typothes because there is sufficient evidence to conclude that p, 70₂ OD: Do not reject the mut hypothesis because there is not sufficient evidence to conclude that p Ⓒ Time Remaining: 01:59:30 Next
Assume that both populations are normally distributed a) Test whether at the b) Construct a 99% confidence interval about u Click the icon to view the Student-distribution table aj Perform a hypothesis test. Determine the null and alternative hypotheses OAMM FOR M₂ P P₂. H OC H₂ HH₂ M₂ P OD H₂ H ₂. Hy Determine the test statistic (Round to two decimal places as needed) Determine the critical values). Select the corect choice below and it in the answer boxes) within your choice (Round to three decimal places as needed) OA The critical value is OB. The cal The un caval 0.01 level of significance for the given sample data Sample 1 11 104 3 Time Remaining:01:58:56 n Sample 2 11 6.7 2.1 Next
This question: 1 point possible Submit test Researchers initated a long-term study of the population of American black bears. One aspect of the study was to develop a model that could be used to predict a bear's weight (since it is not practical to weigh bears in the field). One variable thought to be related to weight is the length of the bear The accompanying data represent the lengths and weights of 12 American black bears. Complete parts (a) through (d) below Click here to view the data table, Click here to view the critical valuable X CED Data Table (a) Which vartable is the explanatory variable based on the goals of the research? OA. The length of the bear Weight (kg) B. The number of bears 110 40 OC The weight of the bear 00 60 b) Draw a scader diagram of the data. Choose the correct graph below. DA 05 OB 105 Q 110 (c) Determine the linear correlation coefficient between weight and long The Inear correlation coefficient between weight and length is r (Round to three decimal places as needed.) d OC Sophom Total Length (cm) 1:39:0 1300 130.0 120.5 140.0 141.0 141.0 150.0 106.0 151.5 129.5 1500 Print 59 155 140 105 110 Done
Question 14 a This question: 1 points possible Submit test A student at a junior cotege conducted a survey of 20 randomly selected full-time students to determine the relation between the number of hours of video game playing each weekx, and grade-point average y She found that a linear relation exists between the two variables. The least-squares regression in that describes this relation is y=-0.0522x+29251 (a) Predict the grade-point average of a student who plays video games 8 hours per week The predicted grade-point average is (Round to the nearest hundredh as needed.) th) Interpret the slope For each additional hour that a student spends playing video games in a week, the grade-point average will points on average (e) appropriate, interpret the intercept OA. The average number of video games played in a week by students is 2.9251 OB. The grade-point average of a student who does not play video games is 2.9251 OC. It cannot be interpreted without more information (d) A student who plays video games 7 hours per week has a grade-point average of 2.45 is the students grade-point average above or below average among all students who play video games 7 hours per The student's grade-point average is average for those who play video games 7 hours per week Time Remaining:01:57:00 Next