QUESTION 1 4 points Saved A machine dispenses silly string. I new machine has been introduced and the mean amount follows normal distribution. The population mean is 16 oz and the population standard deviation is 0.15oz. A sample of 50 cans was measured and the sample mean was 16.02 oz. Using a .05 significance level, does the evidence suggest the sample mean amounts different from the population mean. Use 5 step hypothesis testing procedure for the answer. You will have to list the five steps: Choose the correct null and alternate hypothesis: Ho = 16.02 H1= 16.02 O Ho: u=16 H1: u # 16 Ho: u > 16.02 H1u 16.02QUESTION 2 4 points Save Answer A machine dispenses silly string. I new machine has been introduced and the mean amount follows normal distribution. The population mean is 16 oz and the population standard deviation s 0.15oz. A sample of 50 cans was measured and the sample mean was 16.02 oz. Using a.05 significance level, does the evidence suggest the sample mean amounts different from the population mean. Use 5 step hypothesis testing procedure for the answer. You will have to list the five steps: Choose the correct test statistic (formula) below and click the appropriate letter: Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Ans Ob. O c. O d. QUESTION 3 4 points Saved A machine dispenses silly string. I new machine has been introduced and the mean amount follows normal distribution. The population mean is 16 oz and the population standard deviation is 0.15oz. A sample of 50 cans was measured and the sample mean was 16.02 oz. Using a .05 significance level, does the evidence suggest the sample mean amounts different from the population mean. Use 5 step hypothesis testing procedure for the answer. You will have to list the five steps: Choose the decision rule (or critical values): O -1.96 or less O -1.645 to 1.645 O -1.96 to 1.96 - 2.33 to 2.33 QUESTION 4 4 points Saved A machine dispenses silly string. I new machine has been introduced and the mean amount follows normal distribution. The population mean is 16 oz and the population standard deviation is 0.15oz. A sample of 50 cans was measured and the sample mean was 16.02 oz. Using a .05 significance level, does the evidence suggest the sample mean amounts different from the population mean. Use 5 step hypothesis testing procedure for the answer. You will have to list the five steps: Calculate Z or t from data: 1.645 . 1333.943 -1.333 QUESTION 5 4 points Saved A machine dispenses silly string. I new machine has been introduced and the mean amount follows normal distribution. The population mean is 16 oz and the population standard deviation is 0.15oz. A sample of 50 cans was measured and the sample mean was 16.02 oz. Using a .05 significance level, does the evidence suggest the sample mean amounts different from the population mean. Use 5 step hypothesis testing procedure for the answer. You will have to list the five steps: What is conclusion from the data: Reject Ho, the means are unequal. Reject the Ho, the means are NOT equal Do not reject Ho and H1, means are not equal Do not reject Ho, the means are equal. QUESTION 6 4 points Saved American population gets a mean of 7 hours of sleep per night. A random sample of 25 HVCC students revealed the mean number of hours slept a night was 6.7 hours and the sample standard deviation is 0.9 hours. Is it reasonable to conclude that HVCC students sleep less than the American public at the 0.10 significance level? What is the Ho and H1? Ho: U 2 7 H1:U UA H1: Uv # UA QUESTION 18 4 points Save Answer The United Federation of Planet's wants to compare the mean travel time for spacecrafts from Earth to Vulcan and Earthe to Andoria. The United Federation of Planets would like to know if the mean travel time from Earth to the two independent planets are different, Vulcan and Andoria at the .05 significant level. They gathered the following sample data. use 5 step hypothesis testing for the answer. Mean Travel Standard deviation Planet time in light years Sample Size time in light years Vulcan 370 30 35 Andoria 380 26 :40 What is the test Statistic (formula)? Click on the correct letter. a. Z=(X-U)/(ol \ ) b. t= (x-U)/(s/ \ ) c. z= (X1-x2) /(s12 1) + ($222) d. Z= (X-U)/ o O Ob QUESTION 19 4 points Save Answer The United Federation of Planet's wants to compare the mean travel time for spacecrafts from Earth to Vulcan and Earthe to Andoria. The United Federation of Planets would like to know if the mean travel time from Earth to the two independent planets are different, Vulcan and Andoria at the .05 significant level. They gathered the following sample data. use 5 step hypothesis testing for the answer. Mean Travel Standard deviation Planet Sample Size time in light years time in light years Vulcan 370 30 35 Andoria #380 26 40 What is the critical value (s) or decision rule? less than 1.96 O -1.96 to 1.96 O-1.28 to 1.28 -2.33 to 2.33 QUESTION 20 4 points Save Answer The United Federation of Planet's wants to compare the mean travel time for spacecrafts from Earth to Vulcan and Earthe to Andoria. The United Federation of Planets would like to know if the mean travel time from Earth to the two independent planets are different. Vulcan and Andoria at the .05 significant level. They gathered the following sample data. use 5 step hypothesis testing for the answer. Mean Travel "Standard deviation Planet Sample Size time in light years time in light years Vulcan 370 30 35 Andoria #380 26 40 What is the calculated Z or t? 1.25 O +10 O.1.53 O -1.02QUESTION 21 4 points Save Answer The United Federation of Planet's wants to compare the mean travel time for spacecrafts from Earth to Vulcan and Earthe to Andoria. The United Federation of Planets would like to know if the mean travel time from Earth to the two independent planets are different, Vulcan and Andoria at the .05 significant level. They gathered the following sample data. use 5 step hypothesis testing for the answer. Mean Travel Standard deviation Planet Sample Size time in light years time in light years Vulcan 370 30 35 Andoria 380 26 40 What is the conclusion? Do not reject the Ho, mean travel time is NOT equal. Do not reject the Ho, mean travel time are equal Do not reject H1 mean travel time are not equal. Reject the H1, mean travel time is not equal. QUESTION 22 4 points Save Answer P-value in statistics is used only in a t-table hypothesis testing used rather than a hypothesis testing of a proportion supports your conclusion not acccurate QUESTION 23 4 points Save Answer The Null Hypothesis is a statement about population parameter critical values (CV) sample statistic proportions data QUESTION 24 4 points Save Answer Given: sample standard deviation =2.5 sample size is 15 U=45 .=.05What is df? 2.5 05 14 65 QUESTION 25 4 points Saved Given: Sample standard deviation = 5 sample size =15 population mean = 45 sample mean = 44.5 ONE TAIL 05 What is the t or Z CV= O t=1.8331 O Z=1.645 O Z=1.96 O t=1.7613