A specific exam is designed to determine a person's satisfaction with his or her relationship. Assume the test results are quite regular, with a mean of 60 and a standard deviation of 10. Individuals with a score of 45 or less in their relationship are considered miserable. What proportion of people in relationships are dissatisfied with this criterion? You should round your answer to at least four decimal places.

Q: set of data has a histogram that is extremely skewed, what does this tell you about the data and how…

A: A set of data has a histogram that is extremely skewed, we have to estimate the distribution of the…

Q: Americans spend an average of 5 hours per day online. If the standard deviation is 33 minutes, find…

A: Given,Mean, μ = 5 hours = 5×60 = 300 minutes.Standard deviation, σ = 33 minutes.We need to find the…

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: Suppose your statistics professor graded your test with a Z Score.  You earned a 3.25 on a test with…

A: Answer:- Given, Mean, µ = 71  Standard deviation, σ = 8  And Z-score = 3.25  We need to find the…

Q: n a set of score, the coefficient of variation (in percentage terms) = 50% and standard deviation =…

A: The coefficient of variation is the ratio of the standard deviation to the mean. It is a measure of…

Q: If the you were given a set of measurements 9.5 g, 8.5 g,9,1 g, 9.3 g, and 9.1 g, What is the mean…

A:

Q: You are curious about how the mean age of cars compares for students and faculty. You take a random…

A: We have given that a random sample of 25 students and a random sample of 25 faculty members.

Q: A large chemistry exam course took their final exam. The mean was 75 with a standard deviation of 8.…

A: Obtain the Z-score of the random variable X equals 60. The Z-score of the random variable X equals…

Q: Anna Grace took the ACT and got a score of 31 on the math portion of the exam.  The scores are…

A: Proportion of students Anna Grace scored lower than is 0.0047 (0.47%).

Q: The average daily points for my fantasy baseball team are {4.1, 5.7, 3.8, 4.7, 4.7, 5.5, 4.1, 2.7,…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: When dating someone, what matters more to you: looks or personality? This question was the focus of…

A: P value=0.0  Hypothesis. H0: μ1 − μ2 = 0 Ha: μ1 − μ2 ≠ 0 (claim)

Q: on or 2.5. a. Fill out the following curves for each distribution. Be sure to label your set of…

A: It is given that • For SAT verbal testMean = 460Standard deviation = 110• For ACT English test:Mean…

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: What is a common way to measure the center of a distribution of data?   a. scatter plot…

A: The objective of the question is to identify a common statistical measure that is used to determine…

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

A:

Q: Provide a set of 20 data points that has a mean of 20, a median of 25, an IQR of 10, and a sample…

A: Data should have mean of 20, a median of 25, an IQR of 10, and a sample standard deviation between 9…

Q: What does “statistically significant” mean in this context? (More than one answer is correct. Select…

A: Hypothesis Testing is a type of inferential procedure is statistics.

Q: Scores for a civil service exam are normally distributed, with a standard deviation of 8. To be…

A:

Q: The prices of all college textbooks follow a bell-shaped distribution with a mean of $180 and…

A:

Q: The GMAC Insurance company reported that the mean score on the National Drivers Test was 67.5 with a…

A:

Q: you know 10% of the people in Amsterdam describe themselves as hipsters. you ask 400 respondents if…

A: Solution: Given data : p = 10% = 0.10 Sample size (n) = 400 To find: standard deviation of the…

Q: Joey took examinations in Algebra, Physics, Chemistry and English and scored 84, 79, 88 and 93…

A:

Q: You are curious about how the mean age of cars compared for students and faculty. You take a random…

A:

Q: the household rather than the male in the household. A coupon book was sent at random to either the…

A: Solution: Given information: n= 50 Sample size  xd= 1.5  Diffrence of sample mean sd=4.75 Difference…

Q: We have provided simple data sets for you to practice the basics of finding a a. population mean. b.…

A: The given data is 2, 5, 0 and –1.

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: What raw score does he need to get the certificate

A: Given that Mean = 83 And SD = 3.2

Q: One of the following measures may take more than one value: Select one: a. Median. b. Mode. c. Mean.…

A: Median, mean and standard deviations take only one value.

Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

A:

Q: Which of the following probabilities indicates a relationship that is not statisti­cally…

A: By statistically insignificant, we means that there is less difference between the measure of null…

Q: Compare the mean and the median of a data set that has a symmetrical distribution

A: Mean: The arithmetic mean (also called the mean) is the most commonly used measure of central…

Q: Find the mean, median, and mode of the data, if possible. If any of these measures cannot be found…

A:

Q: Omar is trying out to be a firefighter.  On the written exam, the mean of everyone who takes the…

A:

Q: A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. What…

A: Let us define the random variable , X. Let X represent the final exam scores. Here X follows Normal…

Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: aking the Graduate Management Aptitude Test averaged 812 with a standard deviation of 145. Only…

A: Given: Meanμ=812Standard deviationσ=145 Consider, X be the random variable that shows the average…

Q: The weekly mean income of a group of executives is $1,000 and the standard deviation of this group…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…

A: