Find xổ.05 for x² distribution with 40 degrees of freedom. -0.05

Q: Find t0.95t0.95 for TT distribution with 2020 degrees of freedom. t0.95=t0.95= (Round the answer to…

A: The given degrees of freedom is 20 and area is 0.95.

Q: distribution with a mean of 6.3 and a staridard deviation of 0.4. Find the percent of data within…

A: As per Bartleby guideline if more than three subparts are asked only first three to be answered…

Q: Q29. Explain about equal and unequal distributions.

A: Answer: For the given question,

Q: The average retirement age in America is 65 years old. Do small business owners retire at an older…

A: c For the given sample values, x¯=68.0625, from the excel function, =AVERAGE(F1:F16)s=5.9830, from…

Q: A distribution of values is normal with a mean of 79.5 and a standard deviation of 7.4. Find the…

A: A distribution of values is normal Mean = 79.5 Standard deviation = 7.4

Q: Find the z-scores for which 95% of the distribution's area lies between -z and z. O-0.96 0.95 O…

A: The area between two boundaries is 95%. In, the remaining percentage 5% (=100%–95%) area, 2.5% area…

Q: The average American gets a haircut every 39 days. Do college students get their hair cut less…

A: A hypothesis test is a statistical  method that uses sample data to evaluate a hypothesis  about a…

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

A: X follows a Normal distribution with mean = 100 and S.D = 15 Then z=(x-mean)/SD = (x-100)/15…

Q: The heights of women aged 20 to 29 follow approximately the (64, 2.7) distribution. Men of the same…

A:

Q: The English statistician Karl Pearson (1857-1936) introduced a formula for the skewness of a…

A: Solution is given below:-

Q: Find the​ z-scores for which 50​% of the​ distribution's area lies between −z and z.

A:

Q: Find the margin of error for the given values of c, s, and n. c = 0.98, s = 2.3, n = 18 Click the…

A: Confidence level(c)=0.98standard deviation(s)=2.3sample size(n)=18

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A:

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Given that,The bone density scores are normally distributed with a mean of 0 and a standard…

Q: Help understanding Find the z-score for which 80% of the distribution's area lies between -z and

A: Find the z-score for which 80% of the distribution's area lies between -z and z.

Q: 5. Losses X follow a paralogistic distribution with 0 =5000 and a = 3. An insurance coverage for X…

A: Given : θ = 5000α = 3

Q: what is the symbol for the first parameter of the distribution and whats the value?

A: Answer: - Actually we have p=0.40  and sample size n=100  , This is the binomial Distribution

Q: Use a table of cumulative areas under the normal curve to find the z-score that corresponds to the…

A: It is given that The cumulative area is 0.051

Q: The population of a country follows a normal distribution with mean height 180 cm and standard…

A:

Q: find the area of the shaded region. the graph to the right depicts IQ scores of adults and those…

A:

Q: For a t distribution with n =11, what is the tvalue such that: 10% of the area under the t…

A: The sample size is, n = 11 The degree of freedom is, df=n-1   =11-1   =10

Q: Solve for the mean, variance and standard deviation

A: here given discrete probability distribution of x

Q: Find the z-score that has 48.4% of the distribution's area to its left. The Z-score is (Round to two…

A: The formula of the Z-score is,Where,X denotes the raw data point,µ denotes the population mean,σ…

Q: A distribution of values is normal with a mean of 199.9 and a standard deviation of 82 Find the…

A: Here, µ = 199.9, σ = 82.

Q: A pregnancy that continues for longer than 42 weeks is called a post-term pregnancy. What's the…

A: It is given that data is normally distributed with mean=266 days and standard deviation =16 days We…

Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…

A: Given that.   X~N( μ , ?^2 )   μ=242     , ?=60 , n=49   Z-score =( x - μ )/?

Q: Find the margin of error for the given values of c, s, and n. c = 0.99, s 5, n=9 E Click the icon to…

A: we have given that  c= 0.99 ,s=5 ,n=9

Q: Explain the relationship between the Poisson and exponential distribution.

A: It is an application of probability distribution. It is widely used in statistics.

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A: Given that  Z follows standard normal distribution with mean zero and standard deviation one  Z ~…

Q: Find the z-score that has 3.851% of the distribution's area to its left. The Z-score is (Round to…

A: The formula of the Z-score is,Where,X denotes the raw data point, µ denotes the population mean,σ…

Q: d. find-t50,.01. Draw the distribution and locate the t-value (-t50,.01) in the distribution. e.…

A:

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: According to the given information, we have Z score = -1.54 (Right tailed)

Q: Once a week, Bill rows his boat from the island where he lives to the mainland. The journey time, X…

A: Given that the mean μ and the standard deviation σ Given that  P(X<20)=0.63P(X<30)=0.95…

Q: Use a table of cumulative areas under the normal curve to find the z-score that corresponds to the…

A:

Q: Suppose that the distance of fly balls hit to the outfield is normally distributed with a mean of…

A: We  have to find given probability..

Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

A:

Q: Find the z-score for which 80% of the distribution's area lies to its right.

A:

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A:

Q: Use a table of cumulative areas under the normal curve to find the z-score that corresponds to the…

A: from given data we have : z-score = 0.051

Q: nd the area of the shaded region. The graph depicts the standard normal deviation with mean 0 and…

A: Given, Mean=0 Standard deviation =1