Statistics question and answers for October 18, 2023
- Q TV sets According to the Nielsen Company the mean number of TV sets in a U S household in 2013 was 2 24 Assume the standard deviation is 1 4...
- Q Let s go to the movies A random sample of 41 Foreign Language movies made since the year 2000 had a mean length of 112 4 minutes with a standard...
- Q 1 3 4 5 6 7 8 9 10 11 There Choose one enough evidence to conclude that the mean number of days is Choose one 50 12 Business trips...
- Q Part 1 of 3 a The results of a recent statewide test suggested that the proportion is 0 62 Using this estimate what sample size is needed so that the...
- Q Question 13 of 18 1 point Question Attempt 1 of 3 SAT scores The College Board reports that in 2018 the mean score on the math SAT was 527 and...
- Q Part 0 4 Part 1 of 4 State the appropriate null and alternate hypotheses Ho H This hypothesis test is a Choose one test Height and age Are older men...
- Q Part 0 5 5 Part 1 of 5 6 7 8 9 10 11 12 TV sets According to the Nielsen Company the mean number of TV sets in a...
- Q 5 Part 0 5 6 Part 1 of 5 7 8 9 a State the null and alternate hypotheses 10 Ho H This hypothesis test is a Choose one test...
- Q Part 0 2 2 Part 1 of 2 3 4 5 The best conclusion is Choose one Which of the three conclusions is best if Ho is rejected 6 X...
- Q Part 0 5 Part 1 of 5 e Blood pressure High blood pressure has been identified as a risk factor for heart attacks and strokes The proportion of U S...
- Q QUESTION 3 1 POINT Lisa has collected data to find that the number of pages per book on a book shelf has a normal distribution What is the probability that...
- Q The FDA regulates that a fish that is consumed is allowed to contain at most 1 mg kg of mercury In Florida bass fish were collected in 51 different lakes...
- Q Labor statistics indicate that 77 of all U S cashiers and servers are women A random sample of cashiers and servers in a particular metropolitan area found that 112 of...
- Q suspect that 18 of all high school students smoke one pack of cigarettes per week At Wilson High School with an enrollment of 300 students a study found that 50...
- Q The Census Bureau reports the average commute time for citizens of Cleveland Ohio is 33 minutes To see if the commute time is different in the winter a random sample...
- Q A cat breeder suspects her kittens weigh more than the larger population of kittens A random sample of 31 of her kittens were weighed The sample weighed an average of...
- Q A doctor speculates that the red blood cell count of adults over the age of 70 is less than the larger adult population The red blood cell count from a...
- Q A local road was designed to handle a daily mean of 200 cars The local city council is concerned that the road it getting more traffic than it was designed...
- Q It is believed that 11 of all Americans are left handed A college needs to know how many left handed desks to place in the big lecture halls being constructed...
- Q Compute the P value Round the answer to at least four decimal places P value 0 0146 Part 4 of 5 Determine whether to reject Ho At the a 0...
- Q Compute the value of the test statistic Round the answer to at least two decimal places Z 2 33 Correct Answer z 2 18 Part 2 5 Part 3 of...
- Q Wire electrical discharge machining WEDM is a process used to manufacture conductive hard metal components It uses a continuously moving wire that serves as an electrode Coating on the wire...
- Q ermine the t critical value s that will capture the desired t curve area in each of the following cases Assume that central areas are centered at t 0 Round...
- Q At the a 0 05 level reject Part 4 5 Part 5 of 5 the null hypothesis Ho e State a conclusion At the a 0 01 level of significance...
- Q At the a 0 01 level do not reject the null hypothesis Ho Part 4 5 Part 5 of 5 State a conclusion At the a 0 01 level of...
- Q Determine the values of the following quantities Round your answers to two decimal places USE SALT a x 0 05 5 b x 0 05 35 2 X c X...
- Q Part 3 of 5 Compute the P value Round the answer to at least four decimal places P value 0 0384 Part 3 5 Part 4 of 5 Determine whether...
- Q sample of 13 joint specimens of a particular type gave a sample mean proportional limit stress of 8 41 MPa and a sample standard deviation of 0 73 MPa a...
- Q Assume that the helium porosity in percentage of coal samples taken from any particular seam is normally distributed with true standard deviation 0 73 a Compute a 95 CI for...
- Q An article reported that in a study of a particular wafer inspection process 356 dies were examined by an inspection probe and 202 of these passed the probe Assuming a...
- Q Part 2 of 5 b Compute the value of the test statistic Round the answer to at least two decimal places Z 2 16 Part 2 5 Part 3 of...
- Q Part 3 of 5 c Using the result from part b compute the P value Round the final answer to at least four decimal places P value 0 0036 Part...
- Q Part 2 of 5 b Compute the test statistic Do not round intermediate steps Round the answer to two decimal places 2 91 Part 2 5 Part 3 of 5...
- Q Kids with phones A marketing manager for a phone company claims that less than 59 of children aged 8 12 have phones In a survey of 822 children aged 8...
- Q Curing diabetes Vertical banded gastroplasty is a surgical procedure that reduces the volume of the stomach in order to produce weight loss In a recent study 82 patients with Type...
- Q Spam A researcher reported that 71 8 of all email sent in a recent month was spam A system manager at a large corporation believes that the percentage at his...
- Q Quit smoking In a survey of 444 HIV positive smokers 199 reported that they had used a nicotine patch to try to quit smoking Can you conclude that less than...
- Q Part 0 5 LA Game consoles A poll surveyed 341 video gamers and 81 of them said that they prefer playing games on a console rather than a computer or...
- Q Itranscript Calculate the monthly mortgage payment Round to the nearest cent Answer 2 Points 220 000 is financed for 15 years at 4 APR
- Q Find the standardized test statistic t for the hypothesis test defined by H 13 6 z 13 2 8 2 0 n 20 and a 0 05 Round your answer...
- Q Construct a 95 confidence intervall for the popallation mean Assume the population has a normal distribution A sample of 20 part time workers had mean annual earnings of 3120 with...
- Q Find the indicated probability Assume that the random variable Xs normally didt buted with mean p standard deviation 16 Compute the probability PX90 CO POSS
- Q At a particular point in time the stock marken ook big wings up and down A survey of 999 adult investors and how often thang bracked their portfolio The table...
- Q In a recent survey 67 of the community favored building a health center in the neighborhood If 14 citizens are chosen find the probability that exactly 9 of th favor...
- Q transcript Brianna is buying a house for 220 000 She plans to make a 18 down payment Closing costs include 700 for 6 months of homeowners insurance 600 for 6...
- Q the close of the stock markets on a day in 2017 there were 6100 companies listed with certain stock exchanges On this day the probabilities of advancing eclining and unchanged...
- Q Given the following five number summary find the NOR 07 13 2
- Q You wish to test the following claim H at a significance level of a 0 01 H 71 7 H 71 7 You believe the population is normally distributed but...
- Q The heights of ten femalle students in inches in a college math class are listed below Find the mean 65 66 67 66 67 70 67 70 71 68 700...
- Q The commuting times in minutes of an employee for ten consecutive below Find the median commute 71 67 67 72 76 72 73 68 72 72 73 minutes 67 minutes...
- Q summarized in the table S 1 15 lb 1 lb 1 1 lb 1 05 lb 19 Find the class width
- Q Provide an appropriate response Which branch of statistics deals with the organization and summarization of collected information Inferential statistics Computational statistics Descriptive statistics
- Q Which of the following is not true of statistics Statistics can be used to organize and analyze information Statistics is used to draw conclusions using data Statistics involves collecting and...
- Q A well known brokerage firm executive claimed that 20 of investors are currently confident of meeting their investment goals An XYZ Investor Optimism Survey conducted over a two week period...
- Q 34 Hy p They find that p value 00025 and use an a 001 level of significance Do the environmental engineers have enough evidence to say the level of lead...
- Q d Determine whether to reject Ho Reject Part 4 5 Part 5 of 5 the null hypothesis Ho e State a conclusion There Choose one enough evidence to conclude that...
- Q 2 3 4 5 6 7 What is the relationship between confidence intervals and hypothesis testing When testing Ho Ho versus H Ho if a 90 confidence interval does not...
- Q This hypothesis test is a two tailed Alternate Answer Ho 35 000 H 35 000 This hypothesis test is a two tailed test Part 1 5 Part 2 of 5...
- Q ne table below contains pulse rates after running for 1 minute collected from a random sample of females who drink alcohol Find a 99 confidence interval for the mean itse...
- Q Ticon one way commute time was 20 minutes with a standard deviation or 15 minutes A transportation engineer Ciams that the meort commote time is greater than 25 minutes Do...
- Q 1 2 3 4 5 6 Select the appropriate word or phrase to complete the sentence 7 If we decrease the value of the significance level a we Choose one...
- Q Only about 20 of people who try to quit smoking succeed Sellers of a motivational tape claim that listening to the recorded messages can help people quit Match the appropriate...
- Q 1 Part 0 5 3 Part 1 of 5 4 5 Commuting to work A community survey sampled 1923 people in Colorado and asked them how long it took them...
- Q The US Department of Energy reported that 45 of homes were heated by natural gas A random sample of 346 homes in Oregon found that 146 were heated by natural...
- Q Part 0 5 Part 1 of 5 2 3 Ho H 4 Is there a doctor in the house A market research firm reported the mean annual earnings of all...
- Q 4 College tuition The mean annual tuition and fees for a sample of 13 private colleges in California was 38 000 with a standard deviation of 7900 A dotplot shows...
- Q Select the appropriate word or phrase to complete the sentence The number of degrees of freedom for the Student s t test of a population mean is always 1 less...
- Q A 2011 Gallup survey based on telephone and face to face interviews with 4 220 adults in China aged 15 and older suggests that 30 smoke regularly or occasionally The...
- Q Part 2 3 Part 3 of 3 Determine whether to reject Ho b Since the test statistic z 2 31 c Since the test statistic z 2 31 Choose one...
- Q P value 0 2030 Correct Answer 0 2002 Part 2 4 Part 3 of 4 c Determine whether to reject Ho Use the a 0 01 level of significance Choose...
- Q You intend to estimate a population mean from the following sample 6 9 3 1 3 52 6 58 8 4 4 46 9 35 3 39 2 23 4...
- Q Find the sum of squares error E for the least squares line fit to the four points in the figure Q AY y 11x43 8 6 odu G E Type...
- Q The world s smallest mammal is the bumblebee bat also known as Kitti s hog nosed bat or Craseonycteris thonglongyai Such bats are roughly the size of a large bumblebee...
- Q 16 The equation that best models the linearized data for a particular data set is logy 0 02396x 48153 a What does the number 0 02396 tell you about the...
- Q CRO Suppose you are a researcher in a hospital You are experimenting with a new sedative You collect data from a random sample of 13 patients The period of effectiveness...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!