what confidence level was used for this poll. The population is 602 while the marginal error is 4%

Q: What dot plot has a median of 5, a range of 10, and a mean of 5?

A: Explanation: Consider the data set is: 0, 5, 10 n = 3 Mean = 0+5+103= 153= 5 Median = n+12thterm=…

Q: After 8 points are added to each score in a sample, the mean is found to be M = 40. What was the…

A: Let us have n number of scores in a sample. After adding 8 to each score sample mean will be M = 40…

Q: A college counselor wants to determine if the number of hours spent studying for a test can be used…

A: An explanatory variable is the one which can be changed independently or what you manipulate or…

Q: In a large data set, the 49th percentile is 523 and the 71st percentile is 675.  About what…

A:

Q: Two different surveys will be conducted to estimate the mean salary of employees who have taken a…

A: The confidence interval inversely depends on the sample size. The formula for the confidence…

Q: Karen wants to estimate the mean number of siblings for each student in her school. She records the…

A: Given, Karen records the number of siblings for each of 200 randomly selected students in the…

Q: A random sample of 2000 driver's license applications found that 17% reported their eye color as…

A:

Q: Angela wants to estimate the mean number of siblings for each student in her school. She records the…

A: Explanation:Here, estimate the mean number of siblings for each student in Angela school. Moreover,…

Q: According to a study done in 2010, the mean number of sexual partners was 7.6. However, a…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: One sample of n=10 scores has a mean of 8 and a second sample of n= 5 scores has a mean of 2. if the…

A:

Q: A sample mean has a z= -4.0 on the sampling distribution created from the population of psychology…

A:

Q: After 5 points are added to each score in a sample, the mean is found to be M=45 . What was the…

A: Given data: c = 5 points are added to each score in a sample. New mean, M = 45 Let the original mean…

Q: Find a sample size for which the median will always equal one of the values in the sample.

A: Median: The median is the middle-most observation in an ordered (in an ascending or descending…

Q: On five exams, Rachel has a mean score of 80 points. Her lowest score was 50.  If this score is…

A:

Q: After six biology tests, Ruben has a mean score of 76. What score does Ruben need on the next test…

A: After 6 biology tests :  Mean = 76  After next test : ( biology test will be 7 now )  Mean =78…

Q: Is the sample mean always equal to one of the values in the sample? If so, explain why. If not, give…

A: FALSE Lets take sample set S={10,15,20,25,30,35} The mean of above sample S is =…

Q: A cardiologist wants to determine whether there is a change in blood pressure when her patients are…

A: Given : n=45 , x(sample mean of the differences ) = -2 mmHg ,  s(sample standard deviation) = 0.4…

Q: Mary scored a 25 when the mean is 23 with a SD of 1.5 Sarah scored a 7 when the mean is 6 with a SD…

A: Given Information: Mary's score is 25 Mean μ=23 Standard deviation σ=1.5   Sarah's score is 7 Mean…

Q: The mean earning of men in Florida differs significantly from the mean earning of men in Texas. If…

A: Sample sizesn1 is 123 and n2 is 88.

Q: A data set has five values. The 45th and the 55th percentile are both 25. The largest value is 125,…

A: We have to given that,   data set has 5 values i.e. n=5 and 45th percentile = 55th percentile = 25…

Q: ect the correct answer. e dot plots represent the number of students who enrolled each year st 24…

A:

Q: The test scores for five students were 59, 60, 63, 76, and 87. How many points greater than the…

A: The mean is the average of all the values, or it is the sum of all the values divided by the number…

Q: A class of 5 students averaged 70% on a given test. A class of 9 students averaged 80% on the same…

A: Introduction: Suppose there are k groups numbered 1, 2, 3, …, k – 1, and k.

Q: A data set is described as consisting of n = 15 scores. Based on the notation being used, the data…

A: We have the following statement .

Q: Intages of to college football quarterbacks for their freshman and sophomore seasons are shown in…

A: Given that :n= 10 sample size Claim: The pass completion percentage has changed.

Q: If you increase the sample size to 50 from 30, will the standard error of the mean be smaller or…

A: When increasing the sample size to 50 from 30, the standard error of the mean would be smaller…

Q: The sample mean or sample proportion is unbiased estimator to the population proportion in case of…

A: The sample mean or sample proportion is unbiased estimator to the population proportion in case of…

Q: For the Facebook data provided, find the mean, median, and midrange for hours online/week and number…

A: Given:

Q: Use your favorite search engine to find 10 daytime high temperatures from where you live. After…

A:

Q: anying data table contains chest deceleration measurements (in g, where g is the force of gravity)…

A:

Q: A sample of 60 students at De Anza College was taken to estimate the average number of sodas…

A: Given A sample of 60 students at De Anza College was taken to estimate the average number of sodas…

Q: If a person’s z score equals 2.08, what is their percentile?

A: Given info: The person’s z score equals 2.08.

Q: A sample consists of n = 16 scores. How many of the scores are used to calculate the range?

A:

Q: Which student has a larger

A: We have given the data of Sarah and. Elaine

Q: f someone scored a 17 when the mean is 19 with a SD of 5, what would their score be if the mean were…

A: given data if some one scored 17   x1=17μ1=19σ1=5 we have to find the score =X2 be if the mean =μ2…

Q: Hurricane Damage Find the percentile rank for each value in the data set. The data represent the…

A: Given data  2.3,3.3,6.2,7.9,9.6,11.3 N =6

Q: If the mean of a data set is 22 and the SD is 5, what % of the values fall between 12 and 27? Give a…

A: given that  mean of a data set is 22

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: A study showed a set of data with a mean of 48. The margin of error was ±6. What does this indicate?…

A: Given that, A study showed a set of data with a mean of 48. The margin of error was ±6.

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: Suppose we measure GPA for people in our class, we find the mean is 2.8 and the median is 3.2. What…

A: Given: Mean = 2.8 Median = 3.2

Q: I finished first in the high jump and third in the pole vault. determine whether the data described…

A: Nominal Data- Take more than 2 values but these values are not ordered –there is no natural ordering…

Q: A poll of 1200 people is taken. Find the margin of error assuming a 95% level of confidence

A: To find the margin of error: