The resistance of a resistor is measured 10 times, and the values determined are 100.0, 100.9, 99.3, 99.9, 100.1, 100.2, 99.9, 100.1, 100.0, and 100.5. Calculate the uncertainty in the resistance. Please show all steps to help my understanding. Thanks.
What are the standard deviations of the returns for stocks A and B? Suppose you want to use this history as a guide to making an investment decision for the long run. Based on this history, and assuming that standard deviation of return is the appropriate measure of risk, does it make any differ
1. How could you use descriptive statistics at work? 2. How could you use descriptive statistics in your personal life? 3. The median home price in your area has increased in the last 10 years, how does this differ from the mean home price in your area? 4.When might coefficient of variation be a better measure of dis
The Rocky Mountain district sales manager of JCM, Inc., a college book publishing company, claims that each of his sales representatives makes 40 calls on professors per week. Several reps said that this estimate is too low. To research the claim, a random sample of 28 reps revealed that the mean number of calls made last week
A business operates with 9 locations. Each year, each location is allotted an overtime budget based on the previous years' activity. The total overtime budget for all 9 locations is $10 million. Each activity is also weighted more in the overtime budget. ( ex: production numbers a weighted more than sales because production mos
It is not clear what data is being measured here and I do not understand the missing variable information. I need to prepare a brief summary outline with any important trends. I am not clear on this case study, I am very confused. When Germany was reunited after the Berlin wall fell, two dramatically different social, econo
Each day, workers at the Gotham City Police Department work two 6-hour shifts chosen from midnight to 6AM, 6AM to noon, noon to 6PM and 6PM to midnight. The following numbers of workers are needed during each shift: 1. 15 from midnight to 6AM 2. 5 from 6AM to noon 3. 12 from noon to 6PM 4. 6 from 6PM to midnight W
The density curve of a uniform distribution is a horizontal line, why is this?
Consider two normally distributed random variables, X and Y, such that Mean x= 2 and standard dev. x = 5 Mean y= 2 and standard dev. y = 1 In other words, both variables have the same mean but different standard deviations. Draw rough sketches of the two normal curves on the same graph. BE SURE TO LABEL YOUR CURVES. P
1.Those methods involving the collection, presentation, and characterization of a set of data in order to properly describe the various features of that set of data are called a. statistical inference. b. the scientific method. c. sampling. d. descriptive statistics. 2. Which of the following is most likely a parameter a
An example of a manipulated independent variable might be ___________ a) The amount of sensory deprivation given a participant, b) A participant's religious affiliation, c) A student participant's hallucinations in response to severe sensory deprivation, d) A retarded child's behavior after a session of relaxation t
6.4.6 Let X1,X2,....,Xn be a random sample from N(mu, sigma^2). (a) If the constant b is defined by the equation Pr(X<=b)= 0.90 find the mle of b. Answer from back of the book: Xbar + 1.282 sqrt[(n-1)/n] S
A financial analyst is interested in estimating the average amount of a foreign loan by U.S. banks. The analyst believes that the amount of a loan may be different depending on the bank, or, more precisely, on the extent of the bank's involvement in foreign loans. The analyst obtains the following data on the percentage of pro
I am in a peer/mentor group. We are meeting to discuss statistical methods. I need to discuss the goals of two statistical methods. The statistical methods are to be selected by you. What are some statistical methods? What does each method attempt to accomplish? I only need to address two.
I am having difficulty creating a question with this data. I am to create a presentation that is an hour and a half long. So I am thinking of formulating one broad question with three sub questions. Can someone help me? Thank you.
ABC Corporation of California publishes a variety of statistics, including the number of individuals who got a new job during the past 12 months and the mean length of time the individuals have been on the job. The Statistical Analysis Department of ABC Corporation reported that the mean length of time of newly employed individu
Suppose you were interested in studying sexism. You tell half of your participants that an essay was written by "John" and the other half of your participants that the essay was written by "Joan". Participants then grade the essay. Broadly speaking, your approach to manipulating your independent variable involves a. Prese
This is a generic question. If I were summarizing data, would I use statistics ___________. If I wanted to know whether or not my results were occurred by chance, I would use __________ statistics. a. Descriptive; inferential b. Inferential;descriptive c. Qualitative;quantitative d. Quantitative;qualitative I be
A neuropsychologist compare the auditory abilities of blind versus normally sighted rats. He predicted that the visually impaired rats would have better auditory development than normally sighted rats. He raises two groups of rats for a year (one normally sighted, one blind) and assessed auditory development by examining the n
A developmental psychologist is studying memory development in children. He is interested in determining the exact age at which children began to recall long-term episodic memories. He compares the frequency and accuracy of long-term memories between groups of children aged 2.5, 3, 3.5, 4, 4.5 and 5 years old Identify the fol
A personality psychologist conducts a study to examine the relationship between extraversion and the number of siblings in a household. She selects male and female participants who had no siblings who had no siblings, one sibling, two siblings, and three siblings in the household while growing up and gives participants a survey
Table 8-35 gives the stopping distance d(feet) of an automobile traveling at speed v (miles per fou) at the instant danger is sighted. (a) Graph d against v. (b) Fit a least-squares parabola of the form d = a + bv + cv^2 to the data. (c) Estimate d when v = 45 miles per hour and 80 miles per hour. (See attachment for table and o
Michigan Motors Corporation (MMC) has just introduced a new luxury touring sedan. As part of its promotional campaign, the marketing department has decided to send personalized invitations to test drive the new sedan to two target groups: 1) Current owners of an MMC Luxury car and 2) owners of luxury cars manufactured by one of
Michigan Motors Corporation (MMC) has just introduced a new luxury touring sedan. As part of its promotional campaign, the marketing department has decided to send personalized invitations to test drive the new sedan to two target groups: 1) Current owners of an MMC Luxury car and 2) owners of luxury cars manufactured by one of
The joint density of X and Y is given by f(x,y)= {xe to the power -(z+y) x>0, y>0 0 otherwise. Are X and Y independent? What if f(x,y) were given by f(x,y)= {2 0<x<y, 0<y<1 0 otherwise.
Given the attached equation, mathematically prove the second equation ...
Problem # 1 The following is the current mathematical model for the production of Standard and Deluxe Bags by Par Manufacturing. Max 10s + 9d s.t. 7/10s +1d is < or equal to 630 1/2s + 5/6 d < or equal to 600 1s + 2/3 d < or equal to 708 1/10s + 1/4d < or equal to 135 S, D, > or equal to 0 Optimal Solution =
Only for above list Blood groups and Rh types of 100 randomly selected persons. If 1 of the 100 persons is randomly selected, find P(Group A or Rh+) and type a decimal Group A: 28Rh+ 7Rh- GroupB: 13+Rh 5Rh- GroupAB: 3Rh+ 4Rh- Group O: 34Rh+ 6Rh- Please show math involved.
I have attached a sample test completed answer sheet, as well as a completed test, Module 4a - Form E. Please review Module 4a Form E, taking into consideration the sample test answers. I am not sure about the null hypothesis in #2 & #3. I don't know the alpha value for #3.
Problem: P that temperature is between -1.36 and 3.56 with a mean of 0 and a standard deviation of 1.