x-bar = 45.5, s = 4.81, N = 50   1.) 17% thought of the class thought I was younger than what age? 17% thought I was older than what?

Q: (a) What percentage of people has an IQ score between 70 and 130? (b) What percentage of people has…

A:

Q: The table shows the results of a survey about favorite pizza toppings. Out of 280 people, how many…

A: 126

Q: (a) What percent of respondents feel that their body weight is about right? (b) What proportion of…

A:

Q: In a survey of 500 human resource professionals, 70% said that the appearance of a resume is very…

A: Use simple formula

Q: Given these stats how many students scored a 65 or lower?

A: given: mean =68.3          standard deviation = 21.1 let x be the score of the students to find…

Q: Students at Neilson Middle School are asked if they prefer watching television or listening to the…

A: Given that, The total number of students at Neilson Middle School is 150. The number of students,…

Q: The mean of a sample is 40. What will the mean become if a) 9 points are added to each score? b) 18…

A:

Q: 3. What is the measure of ZDEF? 47 What is the measure of ZDEG? ?? 30

A:

Q: (a) What percent of the scores are less than 19? (b) Out of 1500 randomly selected scores, about how…

A: mu = 19.9 s = 5.1

Q: A sample has SS= 20 and s? = 4. How many scores are in the sample?

A: Six scores are in the sample.

Q: In a class with 25 student there are 6 student very talentet in the subject of art. What percentage…

A:

Q: Out of 45 students, 29 go on a field trip. Which best represents the percent of the students who do…

A:

Q: 3. In a Gallup Pool, 52% of 1038 surveyed adults said that second hand smoke is "very harmful". What…

A: Following information is given:   Total number of people survey = 1038 Percentage of people who said…

Q: 1. A local news report claims that 40% of the vehicles on the freeways are vans or SUV's. You go to…

A:

Q: Tanberr muffins, which are said on the package label to weigh 116 g: x = 104.4 g, s= 4.1497 g,…

A: Given: Smallest weight=98.7 g Largest weight=108 g Average weight=104.4 g Variance of…

Q: In a business survey for the Best Purchase Company Joey found from collecting data on 100 households…

A: Solution

Q: The state transportation commission counted cars traveling east and west across a toll bridge. The…

A:

Q: What percentage of scores would be above 567?

A:

Q: Out of 300 people sampled, 153 said they prefer Coke over Pepsi. What is the point estimate for the…

A: Consider that p is population proportion of ALL people that prefer Coke over Pepsi.

Q: d. What percentage of students scored at least 66? e. How many students scored more than 98 on the…

A:

Q: (a) What percentage of people has an IQ score between 90 and 110? (b) What percentage of people has…

A: Given that  Mean = 100 and  SD = 10

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: A pollster wishes to estimate the proportion of United States voters who favor capital punishment.…

A:

Q: probability of observing at least 30 heads in 100 tosses? . Try computing the answer for a smaller…

A:

Q: When 410 college students were surveyed,150 said they own their car. Find a point estimate for p…

A: Given Data: The number of college student was surveyed is: n=410 The number of a student owning…

Q: Snoring After surveying 995 adults, 81.5% of whomwere over 30, the National Sleep Foundation…

A: a)

Q: For how many months is the median below 4 hours? O 2

A: From the above parallel boxplot show the average daily hours of bright sunshine in Liberia, West…

Q: 1) What is the high score on the test? 2) What percent of the class scored above a 72? 3)…

A:

Q: a. How many individuals are described in this table? b. How many females were among the respondents?…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Fifty students were surveyed and asked if they are taking a gym class and if they play an…

A: Total number of students is equal to 50

Q: In a recent survey of 180 people who drink coffee or tea, it was found that 137 drink coffee and 74…

A:

Q: A sample of 2100 people were asked if they felt "good" about answer yes' is: 0.53 < p< 0.65 Many…

A:

Q: Out of 1000 people surveyed, 850 said they like chocolate.  What proportion of people surveyed said…

A: Given: The total number of people surveyed is 1000 850 people said they like chocolate We have to…

Q: A survey of 1179 adults nationwide  asked what irks you most about The actions of other Motorist"The…

A: Given: Number of People surveyed=1179 People voted for tailgater=796 To find: Percentage(x).

Q: 64% of students entering four-year colleges receive a degree within six years. Is this percent…

A: We have find hypothesis..

Q: A survey of 1047 Americans found that 835 drive to work. a. What is n? b. What is x? c. Many…

A: Given information- We have given that in a survey of 1047 Americans found that 835 drive to work. a)…

Q: In the population, the mean SAT score is 1000. Would you be more likely (or equally likely) to get a…

A: Given that the population mean is 1,000 and the samples sizes selected are 10 and 30.

Q: B. The average exam score for 10 students in a statistics class was 85. One student dropped the…

A: Given When n=10, average exam score for 10 students in a statistics x̄=85  When one student dropped…

Q: If the proportion of Heads is .25 out of 200 flips, what is the p-value? Round to three places.

A: Given : The proportion of Heads is .25 out of 200 flips.

Q: A survey of 1104 adults nationwide asked, what irks you most about the actions of other motorists?…

A: Percentage is the ratio of people responded tailgators to the total people surved.

Q: (d) Would it be unusual if the sample mean were less than $7700? (e) Do you think it would be…

A: As asked by you I have answered the question (d) and (e). Please find the explanation below. Thank…

Q: Determining the class standing (1st, 2nd, and so on) for the graduating seniors at a high school…

A: Introduction: Scales of measurement: Nominal: When the possible observations are tags or categories…

Q: mple is rder to be 99% confident that the sample proportion will not differ from the true proportion…

A: Given : Margin of error: ME = 0.06 sample proportion: p̂ = 0.23

Q: b. In a Pew Research Center poll on driving, 58% of the 1182 respondents said that they like to…

A: Step 1. (b) Total number of respondents is study =1182.

Q: Given these stats how many students scored a 35 or lo

A: From the given histogram, The number of students corresponding with class [0, 4.7] is 3. The number…

Q: A survey of 1060 Americans found that 624 drive to work. a. What is n? b. What is x? c. Many…

A: The objective is to find the sample proportion.

Q: 2. In one town, 64% of adults have health insurance. W random from the town all have health…

A: Comment: As per the our company guidelines we are supposed to answer only one question. KIndly…

Q: What percentage of IQ's are: a Greater than 95? b. Less than 120? c. Between 90 and 110?

A: Let X be the random variable from Normal distribution with mean (μ) = 100 and standard deviation (σ)…

Q: Practice questions for a textbook are marked with difficulty levels of easy , intermediate , and…

A:

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.