The following are the grades of 16 students in Life and Works of Manny Pacquiao subject: 86,89,75,70,92,82,84,88,92,90,79,81,88,90, 79,84. Find the average grade for the said subject.

Q: If between-groups variance is small, then we have not observed​      ​experimenter effects.…

A: Followings are the explanation of the question Explanation The ANOVA evaluates whether the group.…

Q: A. Assuming a normal distribution of waiting times, find the proportion of customers that will have…

A: It is given that Sample size n = 4 Number of samples k = 25 And X : waiting times follows Normal…

Q: Note: Confidence Interval depends on how much confidence you may have that the sample mean will…

A: Followings are the Explanation of the question Use the z test for the constructing the confidence…

Q: K Use the calculator to fnd the indicated critical value. 20.09 20.09 = (Round to two decimal places…

A: given data,we have to find out the critical value for the given Z score here Z0.09 =?here we use…

Q: hat is the probability that the sample mean lifetime is less than 1540 hours?

A: It is given that the mean is 1500 and the standard deviation is 70.

Q: ​If, in a sample of n=25 selected from a normal​ population, X=59 and S=10​,what is your statistical…

A: From the provided information, Sample size (n) = 25 Sample mean (x̄) = 59 Sample standard deviation…

Q: One epidemiologist raised the concern that people who enjoy physical activity might purposefully…

A: Given that an epidemiologist raised the concern that people who enjoy physical activity might…

Q: A survey was conducted that asked 1009 people how many books they had read in the past year. Results…

A: Givensample size(n)=1009Mean(x)=14.4standard deviation(s)=16.6confidence level=90%

Q: 9-1 In the fair-coin experiment, we define the process x(+) as follows: x(t) = sint if heads show,…

A:

Q: The accompanying data represent the miles per gallon of a random sample of cars with a…

A: Given data :…

Q: Test the claim that the proportion of people who own cats is smaller than 10% at the 0.025…

A: given data claim :p<0.10α=0.025we have to complete the hypothesis testing for the given data,

Q: 2. Pharmaceutical companies spend billions of dollars per year on research and development of new…

A: A type is indicated by the Greek letters alpha or α. When a statistic recommends dismissing a null…

Q: and 0.85? 6.5 The production employees at a garment factory have been surveyed several times to…

A: By Using the margin of error to calculate the required sample size

Q: find (a) the 95% and (b) the 99% confidence intervals. (c) What do the answers to parts a and b…

A: The sample size n is 144, the sample mean is 300 and the population standard deviation is 100.

Q: Find the mean, variance, and standard deviation of the binomial distribution with the given values…

A: given data, n=90p=0.9we have to find out the mean , variance and standard deviation  of the mean

Q: what does the provided table say.

A: From the given data, the table provides information about Economic prosperity.  "Not economically…

Q: Lake Martin and Lake Fields are two large local lakes inhabited by white sturgeon. A while back…

A:

Q: Let f(x) be the probability function of the geo(p) distribution. Prove that: a) f(x) is indeed a…

A: Given that fx be the probability function of the geop distribution.

Q: Find the t –value for n = 20 and  alfa = 0.5 % in one tail.

A: The degrees of freedom is, df=n-1    =20-1    =19

Q: K Male and female populations of elephants under 80 years old are represented by age in the table…

A:

Q: 4 Harris Interactive asked samples of adults (age 18 and over) in various countries, "How important…

A: Given information:   U.S. China India Britain France Germany Spain Italy Very important 4 19 23…

Q: An educational psychologist is examining response times to an on-screen stimulus.  The researcher…

A: The given data shows the response times in milliseconds.

Q: An Internet media and market research firm measured the amount of time an individual spends viewing…

A: Let us create frequency distribution for the given sample values, Minimum value=4 Maximum value=199…

Q: The events are not mutually exclusive, since there and is at least 1 presidential candidate who won…

A: Here, We have to check whether the given events are mutually exclusive or not, using given venn…

Q: The following data represent the pH of rain for a random sample of 12 rain dates in a particular…

A: Givensample size(n)=12standard deviation(s)=0.331confidence level=95%

Q: treatment category and that the mean recovery times and standard deviations for the two groups were…

A:

Q: A researcher is studying how much electricity (in kilowatt hours) people from two different cities…

A: Solution-: Given data: Kansas City Miami 837.6 836.5 841.5 844.4 845.2 839.5 844.3 830.9…

Q: The historical reports from two major networks showed that the mean number of commercials aired…

A: Method: if population standard deviations are unknown then we use t test .

Q: cenario: Does emotional intelligence vary based on the type of preschool a child attends? A…

A: Between-subjects design is nothing but every member of the sample experiences only one condition and…

Q: 5. A total of n balls are tossed into 10 bins as follows: each ball is tossed independently and has…

A:

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Given  n=sample size=15, mean μ=183000, standard deviations σ=36000 Note:: According to Bartleby…

Q: A medical researcher wants to construct a 99% confidence interval for the proportion of knee…

A:

Q: Construct a 99% confidence interval of the population proportion using the given information. x =…

A: given data n = 150x = 4599% ci for p = ?

Q: Problem 2) The random variable X has the following probability density function: fx(x) = {cx a) Find…

A: Method By using the probability density function to find the value of c . After that we use the…

Q: Given the information provided, if the trial were to be repeated with the aim of halving the width…

A: Let us construct the confidence interval for the difference in swim time between placebo and coffee:…

Q: Scenario: If 20 participants completed an attention task twice — once after consuming a sugar pill…

A: Given Sample size n=20

Q: About 20% of babies born with a certain ailment recover fully. A hospital is caring for seven babies…

A:

Q: A company will renew an advertisement if 20% or more people sampled can remember the product. 133…

A: given data  n = 600 x = 133 claim : p≥0.20 p value = ?

Q: g) What are your conclusions in the context of the problem? Relate your conclusions to the test…

A:

Q: Travel + Leisure magazine provides an annual list of the 500 best hotels in the world. The magazine…

A: Let X be a random variable denoting the hotel size that is, the number of rooms and Y denoting the…

Q: If one item is chosen at random, what is the probability that it is less than 5.6 inches long?

A: Let X denote the length of the items. Given that X follows N(mean = 5.5, SD = 1.3), then Z = (X -…

Q: A major automobile company is interest wait while having their car serviced with randomly each day…

A: Given, Note: “Since you have posted a question with multiple sub-parts, we will solve the first…

Q: What does the symbol​ ! represent? The five starting players of an NBA basketball team can stand in…

A: We have to explain about symbol !

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: given data μ=183000σ=34000n=65here sample size n≥30as per CLT we can say that distribution is…

Q: A lower limit estimate for the amount of material leaked after 4 hours is (Simplify your answer.)…

A: Given , Time (hr) 0 1 2 3 4 5 6 7 8 leakage (gal/hr) 30 60 150 240 290 410 550 660 720

Q: Alessandro constructed three confidence intervals, all from the same random sample. The confidence…

A: As the confidence level increases, the width of the confidence interval increases. The width of the…

Q: Listed below are the overhead widths (in cm) of seals measured from photographs and the weights (in…

A:

Q: K The following data represent the pulse rates (beats per minute) of nine students enrolled in a…

A: Population mean = sum(x)/n

Q: Describe three research questions that could be tested using an independent samples t-test.

A: The two-sample independent t-test is applied when The two samples are independent of one another…

Q: 4 5 What is the mean growth rate over these five periods (to 2 decimals)? Enter negative value as…

A: Given that the data in percentage -6.2, -8.2, -3.8, 1.8, 5.4.