For the null hypothesis Median (n) - 5, compute the values of 7*, T , and T for the following ôbservations: 8. 5 4
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- Suppose the following table was generated from the sample data of 2020 campuses relating the total number of crimes committed to the number of police officers on campus and if the college or university is public. Coefficients Standard Error t Stat P-Value Intercept 571.671037571.671037 17.77444017.774440 32.16253432.162534 0.0000000.000000 Number of Officers −7.396761−7.396761 0.5838990.583899 −12.667877−12.667877 0.0000000.000000 Public (1 if public, 0 otherwise) −50.219334−50.219334 7.1156727.115672 −7.057567−7.057567 0.0000020.000002 Step 1 of 2 : In this regression equation, what is the intercept value for colleges or universities that are private? Enter your answer in the space provided. Do not round your answer.Solve the following problem. Show your complete solution. 2. Joe, a DOH COVID-19 tracker, found out that the number of infected persons of COVID-19 in seven low-risk provinces of the country are 1, 9, 2, 12, 8, 7, and 10. Suppose that 5 provinces are drawn as sample. a.) What is the mean (?), variance (?2) and standard deviation of the population (σ)? b.) How many different samples of size n =5 can be drawn from the population? List them with their corresponding mean. c.) Construct the sampling distribution of the sample mean.The following table was generated from the sample data of 10 college students regarding the number of parking tickets the student receives in a semester, the student's age, and the student's GPA. The dependent variable is the student's GPA, the first independent variable (x1) is the number of parking tickets, and the second independent variable (x2) is the student's age. Coefficients Standard Error t-Stat p-value Intercept 19.557814 3.953299 4.947214 0.002585 Number of Parking Tickets -0.070521 0.075387 -0.935452 0.385659 Student's Age -0.850699 0.201228 -4.227531 0.005515 Copy Data Step 1 of 2: Write the multiple regression equation for the computer output given. Round your answers to three decimal places. E Tables E Keypad Answer How to enter your answer (opens in new window) Keyboard Shortcuts x1 +
- The test statistic of z= - 2.40 is obtained when testing the claim that p1. For each claim below, write: (1) claim in mathematical form; (2) Null hypothesis (Ho); (3) alternative hypothesis (Hp); (4) what tailed test. Use notations MuMz (for mean), PuP2 (for proportion), 01,02 (for standard deviation), Mo (for differences in means for dependenr (i.e., matched pair) samples) (a) Claim: California HS students on an average score lower in the SAT than Massachusetts HS students (1 = California, 2 = Massachuselts) (b) Claim: The proportion of smokers in Texas is the same as that in Oklahoma (1 = Texas, 2 = Oklahoma) (c) Claim: The standard deviation of weights in 8 oz Coke cans is at least as high as that in Pepsi cans (1 - Coke, 2 - Pepsi) (d) Claim: Ethiopian track athletes are, on an average, faster long-distance runners than the USA track athletes (1 - Ethiopia, 2 - USA) (e) Claim: The cholesterol level before taking Lipitor is, on an average, higher than that after taking the drug (I - Before drug, 2 - Aller drug)Perform an independent-measures (samples) t-test in SPSS to determine if the starting salary (Variable "salary" "Starting Salary") of males is significantly higher than the starting salary of females. Use α = .01. p-value .0005 T-statistics 3.45 This is a one-tailed test because we are interested in whether the salary of one group is significantly greater than the salary of the other group Our assumption is this correct ? We reject the null because because .0005 is less than .01 and conclude male salary is greater than female salary ? or it is not greater ?
- For a sample of n = 25 individuals, how large a Pearson correlation between two variables, X and Y, is necessary to be statistically significant for a two-tailed test with α = .05? A)0.405 B)0.382 C)0.389 D)0.397A sample consisting of four pieces of luggage was selected from among the luggage checked at an airline counter, yielding the following data on x = weight(in pounds). x1 = 33.4, x2 = 27.2, x3 = 36.6, x4 = 30.4Suppose that one more piece is selected and denote its weight by x5.Find all possible values of x5such that x = sample median.(Enter your answers as a comma-separated list.) x5 =Last year the mean cost u for a one-bedroom rental in a certain city was $1,200 per month. Eli is looking for a one-bedroom apartment and is investigating whether the mean cost is less now than what it was last year. A random sample of apartments had a sample mean c of $1,180 per month. Assuming all conditions for inference are met, Eli will conduct a hypothesis test as part of his investigation. Which of the following is the correct set of hypotheses? Subi Ho : H = 1,200 A Ha : µ > 1,200 Ho : H = 1,200 B H : µ < 1,200 Ho : T = 1,200 Ha : I < 1,200 Ho : = 1,180 H: 1,180 Ho : = 1,180 H: < 1,180
- A sample consisting of four pieces of luggage was selected from among the luggage checked at an airline counter, yielding the following data on x = weight (in pounds). x1 = 33.1, x2 = 27.2, x3 = 36.8, x4 = 30.9 Suppose that one more piece is selected and denote its weight by x5. Find all possible values of x5 such that x = sample median. (Enter your answers as a comma-separated list.)A sample consisting of four pieces of luggage was selected from among the luggage checked at an airline counter, yielding the following data on x = weight (in pounds). x1 = 33.7, x2 = 27.2, x3 = 36.8, x4 = 30.7 Suppose that one more piece is selected and denote its weight by x5. Find all possible values of x5 such that x = sample median. (Enter your answers as a comma-separated list.) x5 =