QUESTION 1 4 points Puentes Statistic class wants to review the relationship between number of hours studied and grades reoieved on the test. Below is the information on a sample of 4 students and the amount of time they spent studying and their grade' Student Hours spent studying Grade Patrick 2 70 Otto 1 60 Ryan 3 70 Deanna 4 90 What is the dependent and independent variable? O Dependent: grade Independent=hour studied Dependent= hours studied Independent=grade O Dependent= grade independent=student Dependent= student Independent=hour studied QUESTION 2 4 points Save Answer Puentes Statistic class wants to review the relationship between number of hours studied and grades recieved on the test. Below is the information on a sample of 4 students and the amount of time they spent studying and their grade. Student # Hours spent studying Grade Patrick 2 70 Otto 60 Ryan :70 April 90 What is the corefficient of correlation r= O .75 O.92 O 1.00 none QUESTION 3 4 points Save Answer Puentes Statistic class wants to review the relationship between number of hours studied and grades recieved on the test. Below is the information on a sample of 4 students and the amount of time they spent studying and their grade. Student # Hours spent studying Grade Patrick 2 70 Otto 60 Ryan 70 April 90 What is the strength and relationship? weeak and positive moderate and positive weak and negativestrong and positive QUESTION 4 4 points Save Answer Puentes Statistic class wants to review the relationship between number of hours studied and grades recieved on the test. Below is the information on a sample of 4 students and the amount of time they spent studying and their grade. Student : Hours spent studying Grade Patrick 2 70 Otto 60 Ryan :70 April 90 What is the coefficient of determination r2 = ? O .49 O.5625 O .85 O 92 QUESTION 5 4 points Save Answer Puentes Statistic class wants to review the relationship between number of hours studied and grades recieved on the test. Below is the information on a sample of 4 students and the amount of time they spent studying and their grade. Student # Hours spent studying Grade Patrick 70 Otto 60 W - Ryan :70 April 190 What is the linear equation ? O Y=9+50X O Y=50+9X O Y=.92 +.85X O Y= 2x+1QUESTION 6 4 points Save Answer Puentes Statistic class wants to review the relationship between number of hours studied and grades recieved on the test. Below is the information on a sample of 4 students and the amount of time they spent studying and their grade. Student Hours spent studying Grade Patrick 2 70 Otto 1 60 Ryan 3 70 April 4 90 What is the grade estimate of someone who studies 0 hours? 70 50 65 QUESTION 7 4 points Puentes Statistic class wants to review the relationship between number of hours studied and grades recieved on the test. Below is the information on a sample of 4 students and the amount of time they spent studying and their grade. Student Hours spent studying Grade Patrick 2 70 Otto 1 60 Ryan 3 70 April 4 90 What is the estimate of someone who studies 3 hours? 72 70 65 QUESTION 8 4 points Save Answer Comparing two VARIANCE using 5 step hypothesis testing; An old silly string machine produced a mean of 50 cans and standard deviation of 3.4 cans over 10 dayszn. A nEW silly string machine produced a mean of 50 cans and standard deviation of 31) cans over 8 days=n. At the .05 signicance level can we conclude that the old and new machinne have different variation? Create a table with the data, Use the 5 step hypothesis testing procedure. What is the Ho and H1? 2 2 H03 0 old: '7 new . 2 2 H1. 0 old at: a new . 2 2 HO- 0 old 0' new H0: U2 old: U2 new H1:U20|d at u2 new H0: 620\" = 3.4 Ht: 020M # 3.0 QUESTION 9 4 points Save Answer Comparing two VARIANCE using 5 step hypothesis testing: An old silly string machine produced a mean of 50 cans and standard deviation of 3.4 cans over 10 days=n. A new silly string machine produced a mean of 50 cans and standard deviation of 3.0 cans over 8 days=n. At the .05 signicance level can we conclude that the old and new machinne have W Create a table with the data. Use the 5 step hypothesis testing procedure. What is the test statistic (formula)? F=({SSTfk-1JI(SSEm-k}} 0' z = (x-U)! QUESTION 10 4 points Save Answer Comparing two VARIANCE using 5 step hypothesis testing: An old silly string machine produced a mean of SCI cans and standard deviation of 3.4 cans over 10 days=n. A new silly string machine produced a mean of 50 cans and standard deviation of 3.0 cans over 8 days=n. At the .05 significance level can we conclude that the old and new machinne have dlecenlxadailqnl Create a table with the data. Use the 5 step hypothesis testing procedure. What are the degree of freedom? dfogd = 10 dfnew = 3 cWold = 9 d1:new = 7 dfoid = 7 dfnew = 9 dfold=3 dfnew =10 Save An swer QUESTION 11 4 points Comparing two VARIANCE using 5 step hypothesis testing: An old silly string machine produced a mean of 50 cans and standard deviation of 3.4 cans over 10 days=n. A new silly string machine produced a mean of 50 cans and standard deviation of 3.0 cans over S days=n. At the .05 significance level can we conclude that the old and new machinne have W Create a table with the data' Use the 5 step hypothesis testing procedure. What is the critical valuels) or decision rule? 329 1 .96 3.4 3.68 QUESTION 12 4 points Save Answer Comparing two VARIANCE using 5 step hypothesis testing: An old silly string machine produced a mean of 50 cans and standard deviation of 3.4 cans over 10 days=n. A new silly string machine produced a mean of 50 cans and standard deviation of 3.0 cans over 8 days=n. At the .05 signicance level can we conclude that the old and new machinne have different varietjgnz Create a table with the data. Use the 5 step hypothesis testing procedure. What is the calculation for F? 1.20 3.68 1.28 .79 QUESTION 1 3 4 points Save Answer Comparing two VARIANCE using 5 step hypothesis testing: An old silly string machine produced a mean of 50 cans and standard deviation of 3.4 cans over 10 days=n. A new silly string machine produced a mean of 50 cans and standard deviation of 3.0 cans over 8 days=n. At the .05 significance level can we conclude that the old and new machinne have d uent variation? Create a table with the data. Use the 5 step hypothesis testing procedure. What is the conclusion? Reject H0. variance are NOT equal Do not reject Ho. variance are equal Reject H1. variance are not equal not enough information given QUESTION 14 4points Save Answer Human Resource Director on the Star Trek Ship Enterprise is concerned about absenteeism among the crew. She decides to sample 60 crew members to determine whether absenteeisms is the same every day throughout the six-day work week. Use the .01 signicance level to determine if absenteeism is equal through out the week. Results from the sample are: WW; uhiglaL Win l Wednesday I11 Wim Wls Il Wigl TOTAL I What is the Ho and H1? Ho: Fo = 10 H1: Fo # 10 O Ho: Fo > Fe H1: Fo # Fe O Ho: Uo = Ve H1: Uo * Ve O Ho: Fo = Fe H1: Fo # Fe QUESTION 15 4 points Save Answer Human Resource Director on the Star Trek Ship Enterprise is concerned about absenteeism among the crew. She decides to sample 60 crew members to determine whether absenteeisms is the same every day throughout the six-day work week. Use the .01 significance level to determine if absenteeism is equal through out the week. Results from the sample are: days number absents fe ( fo=fe )ife Monday 12 Tuesday 9 Wednesday 11 Thursday 10 Friday Saturday TOTAL What is the test statistic (formula)? O x2 = [ (fe - fo)2/ fe Z = ( x-U) / Ot = (x-u) / ( O F = QUESTION 16 4 points Save Answer Human Resource Director on the Star Trek Ship Enterprise is concerned about absenteeism among the crew. She decides to sample 60 crew members to determine whether absenteeisms is the same every day throughout the six-day work week. Use the .01 significance level to determine if absenteeism is equal through out the week. Results from the sample are: days number absents fe ( fo-fe )-ife Monday 12 Tuesday 19 Wednesday 11 Thursday 10 Friday 19 Saturday 9 TOTAL What is the critical value(s) decision rule? 1.96 11.071 9.236 15.086 QUESTION 17 4 points Saved Human Resource Director on the Star Trek Ship Enterprise is concerned about absenteeism among the crew. She decides to sample 60 crew members to determine whether absenteeisms is the same every day throughout the six-day work week. Use the .01 significance level to determine if absenteeism is equal through out the week. Results from the sample are: days number absents fe (to-fe )-Ife Monday 12Tuesday 19 Wednesday 11 Thursday |10 Friday 9 Saturday 19 TOTAL Complete the table on a separate paper. What is the Fe? O 10 O 12 4.55 O .8 QUESTION 18 4 points Saved Human Resource Director on the Star Trek Ship Enterprise is concerned about absenteeism among the crew. She decides to sample 60 crew members to determine whether absenteeisms is the same every day throughout the six-day work week. Use the .01 significance level to determine if absenteeism is equal through out the week. Results from the sample are: days number absents fe (to-fe )-Ife Monday 12 Tuesday 9 Wednesday 11 Thursday 10 Friday Saturday 9 TOTAL Complete the table on a separate paper. What is the calculate X2? O 1.96 15.086 O 4.55 O .8QUESTION 19 4 points Save Answer Human Resource Director on the Star Trek Ship Enterprise is concerned about absenteeism among the crew. She decides to sample 60 crew members to determine whether absenteeisms is the same every day throughout the six-day work week. Use the .01 significance level to determine if absenteeism is equal through out the week. Results from the sample are: days number absents fe ( fo-fe ) ife Monday 12 Tuesday 9 Wednesday 11 Thursday 10 Friday 9 Saturday 9 TOTAL What is the conclusion? Do not reject Ho, observed frequencies equal expected frequencies O Reject Ho, observed frequencies do not equal expected frequencies Do not reject Ho, population mean equal sample mean Reject H1, observed frequencies not equal expected frequencies QUESTION 20 4 points Save Answer Elln Musk is surveyed 60 people to see which planet they would like to visit so he can build a spaceship to go there. Ellin results are in the table below. The NASA found the following results: 53% want to go to Mars, 19% Mercury, 17% Uranus, 11% to the moon. Use 5 step hypothesis testing at the .01 significance level to determine if Ellin Musk results are consistent with NASA results. Number wanting to visit planet percent fe _(fo-fe ) 2 / fe that planet |Mars 29 Mercury 11 Uranus 16 Moon TOTAL What is the Ho and H1? Ho: fo = .10 H1: fo # .10O Ho: fo fe O Ho: Uo = Ve H1: Uo # Ve Ho: fo = fe H1: fo # fe QUESTION 21 4 points Saved Elln Musk is surveyed 60 people to see which planet they would like to visit so he can build a spaceship to go there. Ellin results are in the table below. The NASA found the following results: 53% want to go to Mars, 19% Mercury, 17% Uranus, 11% to the moon. Use 5 step hypothesis testing at the .01 significance level to determine if Ellin Musk results are consistent with NASA results. Number wanting to visit planet percent fe that planet _( fo-fe ) 2 / fe Mars 29 Mercury 11 Uranus 16 Moon 4 TOTAL What is the test statistic (formula)? x2 = [(fo-fe ) 2 / fe O Z = ( X-U) /( ) O t = (x-u)/( -) O x2 = (fo ) 2/ feQUESTION 22 4 points Save Answer Elln Musk is surveyed 60 people to see which planet they would like to visit so he can paceship to go there. Ellin results are in the table below. The NASA found the following results: 53% want to go to Mars, 19% Mercury, 17% Uranus, 11% to the moon. Use 5 step hypothesis testing at the .01 significance level to determine if Ellin Musk results are consistent with NASA results. Number wanting to visit planet _percent fe that planet ( fo-fe ) 2 / fe Mars 29 Mercury |11 Uranus 16 Moon TOTAL What is the critical value or decision rule? 1.96 O 11.345 0 9.488 O 13.277 QUESTION 23 4 points Save Answer Elln Musk is surveyed 60 people to see which planet they would like to visit so he can build a spaceship to go there. Ellin results are in the table below. The NASA found the following results: 53% want to go to Mars, 19% Mercury, 17% Uranus, 11% to the moon. Use 5 step hypothesis testing at the .01 significance level to determine if Ellin Musk results are consistent with NASA results. Number wanting to visit planet _percent fe that planet ( fo-fe ) 2 / fe Mars 29 Mercury |11 Uranus 16 Moon TOTAL What is the calculated X2? Complete table on a separate paper.11.345 4.58 * Question Completion Status: 2.575 0 3 QUESTION 24 4 points Save Answer Elln Musk is surveyed 60 people to see which planet they would like to visit so he can build a spaceship to go there. Ellin results are in the table below. The NASA found the following results: 53% want to go to Mars, 19% Mercury, 17% Uranus, 11% to the moon. Use 5 step hypothesis testing at the .01 significance level to determine if Ellin Musk results are consistent with NASA results. Number wanting to visit planet percent fe that planet ( fo-fe) 2 / fe Mars 29 Mercury |11 Uranus 16 Moon 4 TOTAL What is the formula to calculate Fe? Complete table on a separate paper. Ofe= total observations/ categories O fe= (total observations)(%) Ofe= (total oberservations) (# of observations in category) O fe= # of observations QUESTION 25 4 points Save Answer Elln Musk is surveyed 60 people to see which planet they would like to visit so he can build a spaceship to go there. Ellin results are in the table below. The NASA found the following results: 53% want to go to Mars, 19% Mercury, 17% Uranus, 11% to the moon.Use 5 step hypothesis testing at the .01 significance level to determine if Ellin Musk results are consistent with NASA results. Number wanting to visit planet percent fe _(fo-fe ) 2 / fe that planet Mars 29 Mercury 11 Uranus 16 Moon 4 TOTAL What is the conclusion? Reject Ho, means are not equal Reject Ho, observed frequencies not equal expected frequencies O Do not reject Ho, observed frequencies equal expected frequencies I have no idea what the answer is QUESTION 26 4 points Saved Did the zoom class zoom class your grade remained the same zoom class decreased your grade zoom class increased your grade I will not take classes next semester if I am not on campus Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Save and Submit