b. What is the probability that a simple random sample of 55 unemployed individuals will provide a sample mean within 1 week of the population mean? (to 4 decimals) c. What is the probability that a simple random sample of 55 unemployed individuals will provide a sample mean within week of the population mean? (to 4 decimals) 4

Q: The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean…

A: Answer: Using the given data, Let X: The number of calls received by an office on morning between…

Q: tracked the ages of those injured and the kinds of skates worn during injury. In-line skates Roller…

A:

Q: The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean…

A: Answer: From the given data, Let X represent the number of calls received by an office on morning…

Q: Objective: Probability involving percentages Business Weekly conducted a survey of recent graduates…

A: (1) Obtain the probability that less than 90% of the 77 recent graduates have an annual salary…

Q: (d) The mean sample x, x, 7, 9, 11, 12, 3x, 18 is 10.25 with x constant. Find the value of x.

A:

Q: What is mean if n is 7 and p is 0.2

A: Given, n=7 p=0.2

Q: According to a Gallup Poll, the probablity that a Republican approves of the death penalty is 69%.…

A: The probability that Republicans approve of the death penalty is 69%.p=0.69wants to calculate…

Q: . Explain what the mean is

A:

Q: ccording to the pew research Center 42% of Americans so that they are spending less money than usual…

A: p =0.42 n = 1000

Q: What is the mean? 5 6 7 11 11 11 11 11 13 23 33 35

A:

Q: An unfair coin is tossed 14 times.  This coin is known to come up heads 60% of the time and tails…

A: Here, n = 14, p = 0.40, q = 0.60.

Q: Assume that a recent survey suggests that about 79​% of adults have heard of the brand.   n=

A: It is given that a recent survey suggests that about 79​% of adults have heard of the brand.

Q: 1. Samples of 3 cards are drawn without replacement from a population of five cards numbered from 4…

A: There are 5 cards numbered from 4 to 8. 3 cards are selected at random without replacement. So, the…

Q: Camila sets up a passcode on her smart phone, which allows only five-digit codes. She has heard that…

A: Given : The passcode consists of 5 digits  Out of 5 digits one digit appeared 2 times (because…

Q: The probability that the wait time in a doctors office is at most 20 minutes is 27% how many…

A:

Q: Find the median position for n=17 n=50

A: Median : The median of a data set is found by identifying the middle number in a sorted data set. If…

Q: 4- A statistics student made the following grades on 7 tests: 76, 82, 92, 95, 79, 86, and 92 What is…

A: Given: data 76,82,92,95,79,86,92 n =7 to find: mean

Q: does question say to bring the sample donw by 1/2 or the mean down by 1/2

A: Given the question want to reduce the margin of error from slightly more than half an hour to…

Q: Explain in 4 or more sentences, what effect moving a true population mean away from a hypothesized…

A: Given information: The investigator is specially interested in determining the effect moving a true…

Q: was the mean for the original sample? (SHOW YOUR WORK)

A:

Q: Assume the proportion of all students that are left handed is equal to 0.4. What is the probability…

A: Given data,p=0.4n=20P(X=5)=?

Q: When having random numbers what is used SURVEYS OR EXPERIMENTS?

A: Here's the explanation for this is as follows; Note that ,Experiment came from the Latin word…

Q: n a city with three high schools, all the ninth graders took a Standardized Test, with these…

A: Formula : x¯ =x¯1 n1+x¯2 n2 + x¯3 n3n1+n2+n3

Q: The mean score of 8 players in a basketball game was 14.5 points. If the highest individual score is…

A: Given; Mean score of 8 players is 14.5 and mean score of 7 players is 12.

Q: Heart failure is due to either natural occurrences (84%) or outside factors (16%). Outside factors…

A:

Q: Q. 20 What do you understand by progressive average?

A:

Q: If m is the average (arithmetic mean) of the first 10 positive multiples of 5 and if M is the median…

A: The objective of the question is to find the difference between the median and the mean of the first…

Q: What is the mean and symbol of the following sample of numbers? 1,1,39,2,2

A:

Q: Consider the sample data: 125, 100, 112, 127, 112, 105. What is the sample mean of the data?

A: Given data set: 125, 100, 112, 127, 112, 105

Q: a fast food center wants to estimate the proportion of people in its city that will purchase its…

A:

Q: n is 10 p is 0.2 Find mean.

A: According to the provided information. n = 10 p = 0.20

Q: According to Reader's Digest, 50% of primary care doctors think their patients receive unnecessary…

A: Given: 50% of primary care doctors think their parents receive unnecessary medical care. That is,…

Q: cw2 In a city with three high schools, all the ninth graders took a Standardized Test, with these…

A: Step 1:Step 2: Step 3: Step 4:

Q: y school, 21 % of children wear glasses. Suppose that a random hildren is selected. Find the mean…

A: The random variable  be the number of children who wear glasses.Sample size: , andProbability of a…

Q: 300 books were selected at random from a library. If the mean length of books in this sample was 150…

A: Given that total books, n= 300 Mean, X bar= 150 and  Variance, sigma= √100 = 10 We know that z…

Q: What is the probability that a card drawn randomly from a standard deck of 5252 cards is an ace?…

A: Obtain the probability that a card drawn randomly from a standard deck of 52 cards is an ace   The…

Q: 28. What is the sample mean of these 16 data points? 29. What is the probability that a randomly…

A:

Q: Robi has recently hired a batch of new employees. Of the new recruits, 72% were able to meet…

A: Given, Meet expectations = 0.72 Not meet expectations  = 0.28 Out of 72% of satisfactory recruits…

Q: There are 15 mobile phones in a package box, 8 of which are iphones. If a person takes 5 phones from…

A: Number of mobile phones=15 Number of iphones=8 Number of phones selected from the box=5 The…

Q: What is the probability that a card drawn randomly from a standard deck of 5252 cards is a six?…

A: we have yo find probability  for given data..