A population consists of numbers with mean 205 and standard deviation 25.   Match the following: Group of answer choices z-score associated within a value of 210                                                                                                                                                                                      value whose z-score is -1.6                                                                                                                                                                                      If the population values are approximately bell-shaped, then the value __________ represents the approximate 16th percentile of the numbers

Q: cases median is more useful than mean ( only give answers n0 need to explain) Pulse rate. Miles…

A: The median is the middle value of the ordered data set.  Individual wealth can have some extreme…

Q: Water Temperature If the variance of the water temperature in a lake is  25°, how many days should…

A: From the standard Normal table, the value of z for 95% level is 1.96.

Q: Water Temperature If the variance of the water temperature in a lake is 30°, how many days should…

A: According to the given information, we have Variance = 30 Margin of error = 4 Confidence level = 95%

Q: The indicated IQ score, x, is

A: Let X represents the distribution of IQ scores. Given that X~N(mean= 100, SD= 15), then Z = (X -…

Q: Select the Market Research data set, a sample size of 143, and click Sample Now. Request a Relative…

A: We have given a histogram chart for Ratecurr and five classes are made of Ratecurr and sample size n…

Q: %23 4. %24 76 Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and…

A: The area to the right is 0.3949, which is equal to the area to the left of 0.6051 (=1–0.3949).

Q: Eye color of a female Student ID number ody temperature of patients

A: The variables measured on the quantitative (or numerical) scale are called quantitative variables.…

Q: Use the normal distribution of IQ scores, which has a mean of 105 and a standard deviation of 13,…

A: Given dataMean = 105Standard deviation = 13

Q: How often do users of a certain social media post on the​ site? The accompanying table represents…

A:

Q: Water Temperature If the variance of the water temperature in a lake is 25°, how many days should…

A:

Q: If the variance of the water temperature in a lake is 29°, how many days should the researcher…

A: Solution: From the given information, confidence level is 0.95, σ2=29 and E=4.

Q: Consider a hypothesis test about two proportions, Ho: pi = P2 versus Ha: P1 + P2. If the alternative…

A:

Q: The Interquartile range IQR is a useful measure of data spread utilizing relative position. the…

A: Given data; First Quartile, Q1 =  8 Third Quartile, Q3 = 11.5

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Solution: Let X be the IQ score. From the given information, X follows normal distribution with mean…

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Given information Mean = 100 Standard deviation = 15 P(X > x) = 0.65 P(X < x) = 1 – 0.65 =…

Q: Find the area of the shaded region. The graph to the right depicts 10 scores of aduts, and those…

A: mean = 100 standard deviation = 15

Q: Overweight Men For a random sample of 55 overweight men, the mean of the number of pounds that they…

A: The sample size n is 55.

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Given data,μ=100σ=15P(X<x)=0.99x=?

Q: A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back…

A: Null hypothesis(Ho): there is no significant difference Alternative hypothesis(Ha): there is a…

Q: ______________ was the first person to use the word “Statistics”. In a Box Plot the 75th Percentile…

A:

Q: For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 39 beats…

A: The lowest pulse rate is  beats per minute.i.e. The mean:  beats per minute. and Standard deviation:…

Q: A group of students estimated the length of one minute without reference to a watch or clock, and…

A: From the provided information, Sample size (n) = 15

Q: Find the mean the median and the mode(s) if any for the given data. Round noninteger means to the…

A: The observations are 3, 28, 51, 4, 18, 23, 53, 12 Number of observations are 8.

Q: 2.35 For the grouped data of Table 2.29, find (a) the first quartile, (b) the second quartile…

A: Note: According to Bartleby guidelines expert solve only one question and maximum 3 subpart of the…

Q: Use the data below to answer the questions that follow. Score X-X 15 -3 17 -1 19 1 21 3 12. The…

A:

Q: drawn to scale. 50% of the data has values below 12 and 50% have values above 12. the 25th…

A:

Q: If a distribution of test scores is normal, with a mean of 78 and a standard deviation of 11, what…

A: If a distribution of test scores is normal, Mean = 78 Standard deviation = 11

Q: The following refer to the following data set: 91 83 94 36 63 35 57 54 63 99 What is the mean (a) of…

A: We have given that,  The data set is,  91,83,94,36,63,35,57,54,63,99 Then,  We will find the mean,…

Q: miles Suppose that the speeds of cars travelling on California freeways are normally distributed…

A: Given: µ=58 PX>75=0.02 To find out: standard deviation(σ )

Q: Save 15 of 15 (2 complete) ▼ A company manufactures light bulbs. The company wants the bulbs to have…

A:

Q: miles Suppose that the speeds of cars travelling on California freeways are normally distributed…

A:

Q: The mean mark on a state-administered mathematics exam by a 10th grade class in Smalltown,…

A: Population parameter The characteristics of the distribution which is related to the population .…

Q: Which of the following is a measure of dispersion? Standard Deviation Mean Median Correlation Count

A: To find which of the following is a measure of dispersion :-

Q: Tablet computers In October 2011, cnet.com listed thebattery life (in hours) and luminous intensity…

A: Note: Hey, since multiple subparts are posted, we will answer first three subparts according to our…

Q: Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost…

A: Margin of error(E)=0.16Standard deviation()=0.48

Q: Heights for group of people normally distributed with mean = 63 inches and standard deviation 2.9…

A: The objective of this question is to find the height that corresponds to the 20th percentile of a…

Q: percentile rank of the measurement 57

A: The problem is pertaining to the data set of 80 measurements represented by the following stem and…

Q: The dean of a university estimates that the mean number of classroom hours per week for full-time…

A: Given data: Significance level  = 0.10 Given claim: The dean of a university estimates that the mean…

Q: ederal Government Employee E-mail Use It has been reported that 74% of federal government employees…

A: Given that n = 220 ,p =0.74

Q: Find and interpret the z-score for the data value given. The value 259 in a dataset with mean 188…

A: It is given that the, mean is 188 and the standard deviation is 22. Since, in a dataset, the value…

Q: The tensile strength of silicone rubber is thought to be a function of curing temperature. A study…

A: The formula of the sample standard deviation is,where,xi denotes the observations,n denotes the…

Q: probability correlation coefficient interquartile range z-score standard deviation

A: Given choices are: Probability Correlation coefficient  Interquartile range z-score standard…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.