The mean work week for engineers in a start-up company is believed to be about 62 hours. A newly hired engineer hopes that it's shorter. She asks 8 engineering friends in start-ups for the lengths of their mean work weeks. Their responses are 50,51,45,51,56,64,66,63 n = . s = || 18

Q: Julia started exercising on August 1 because she wanted to prepare for volleyball season. For 7…

A: Range=(last data)-(first data)

Q: As a realtor you want to determine if house style and house location are related. At the .05 level…

A: Given Data  :   Urban Rural Total Split-Level 63 49 112 Ranch 15 33 48 Total 78 82 160…

Q: What is the range of the following: 15, 67, 60, 27, 19, 10

A: Given data,   15, 67, 60, 27, 19, 10   The objective is to find the range for the given data.

Q: On a survey, 8 students reported how many minutes it takes them to travel to school. Here are their…

A:

Q: Suppose the profit the Honda dealership makes on the next 5 Accords it sells are: 443, 1,058, 766,…

A:

Q: find out the mode, median and mean  74,78,45,7,9,65,7,2,35,68,45,78,98,99

A:

Q: 3. A student asks her friends how much they make per hour. The values are $15.00, $15.00, $18.00,…

A: The data set for the values that students asks her friends how much they make per hour is given as…

Q: Solve. a pollster wishes to estimate the true proportion of U.S. voters that oppose capital…

A:

Q: What is the range of the following: 48, 65, 12, 66, 26, 23

A: Given data, 48, 65, 12, 66, 26, 23 Range=?

Q: A total of 14,105 new cancer cases were reported in Nevada in 2017. The total NV population on July…

A: prevalence is a proportion of the population who have a specific characteristic in a given time. In…

Q: Find the median 12 ,19,65,58, 9,12

A: It is a single value within the range of data which represents a group of individuals values in a…

Q: What is the range of the following: 54, 25, 71, 36, 12, 55

A: given that data points: 54, 25, 71, 36, 12, 55 then

Q: The average (mean) score on an exam was 76.375 in a class consisting of 21 Administration students…

A: From the provided information, The average score on an exam was 76.375 consisting 21 Administration…

Q: d) Find the cut-off for the top 30% of electricity usage in a 4 person household. e) What is the…

A: Given a Uniform distribution : Lower limit = a = 857 Upper limit = b = 945   d) We need to find x…

Q: 25% of pitchers are left-handed. a survey of 80 pitchers showed 27 are left-handed. find the point…

A: Solution:Point estimate: The population parameter which is estimated by using sample statistic is…

Q: Keiko asked 15 students how many courses they have taken so far at her college. Here is the list of…

A:

Q: The mean score of a girl in 3 tests is 68. What should her mean score in 2 remaining tests be in…

A:

Q: Zaphod Beeblebrox has recently purchased a second-hand ballpoint pen business. In the first month,…

A: Relative frequency:It represents the fraction of times a category occurs. The formula for relative…

Q: * Baseball pitchers try to prevent hitters from reaching base. One way to measure the effectiveness…

A: Given data, Whip Age 1.533 23 1.673 24 1.443 25 1.151 26 1.257 27 1.169 28 1.157 29…

Q: The Institute of Education Sciences measures the high school dropout rate as the percentage of…

A: Given:n =  1000Population Proportion, p = 8.1% = 0.081Significance level, α = 5% = 0.05

Q: Respond to parts B and C below. Part B: Calculate the mean (average) of the given list. Show your…

A: Part A.To find the quartiles, median, and mean of the given data set, we first need to arrange the…

Q: Find the median. 17, 26, 36, 57, 68, 71, 80 O A. 57 O B. 68 O C. 51 O D. 36

A: Median

Q: x1: New England Crime Rate 3.3, 3.7, 4.0, 4.1, 3.3, 4.1, 1.8, 4.8, 1.9, 3.1 x2: Rocky Mountain…

A: To find: 1.Value of test statistics 2. 98% confidence interval As here population standard deviation…

Q: The numbers below show salmon population’s decrease since 1960. salmon = {{0, 10.02}, {5, 10.00},…

A: The fitting of a regression line can be done using Excel. First enter the data in spread sheet.…

Q: (d) What is the nonresponse rate? (e) Suggest some methods that could be used in a future survey to…

A: The purpose of a survey is to examine the opinions, behaviors, or experiences of individuals or…

Q: Describe about THREE F TESTS.

A: The F tests  involves three basic steps, namely 1) F test of the equality of two variances. 2)…

Q: Oxnard College reports your GPA on a 4.0 scale. The "4" in the 4.0 GPA scale is equivalent to an A,…

A: given data  grade score A 4 B 3 C 2 D 1 F 0   scores in course: A in a 4 units Math…

Q: The scatter diagram shows the record times for races of different lengths at a junior high school…

A: In the scatter diagram, the horizonal axis ( x axis) represent the length of race( in meters) and…

Q: Q2. A bag contains 10 discs with one of the digits 1, 2, 3 written on each disc. What is the lowest…

A: bag contains 10 discs with one of the digit 1,2,3 written in each disc. we have to find lowest and…

Q: Jeanne is currently taking college economics. The instructor often gives quizzes. On the past five…

A: Given data is 5,20,4,14,10

Q: Find the SLG Percentage for Mr Hodo with 52 doubles, 31 singles, 2 triples, 61 homeruns, and 335 at…

A: Given, Singles(S)=31 Doubles(D)=52 Triples(T)=2 Homeruns(HR)=61 At bats(AB)=335

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.