What is the DESCRIPTIVE OF THE RESULTS , you may discuss one by one from rsnk 1 to 4 or disccuss the 1st and last

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

A:

Q: The moment-generating function of a random variable X is given by M(t) = 0.2 +0.4e5t +0.1e20t…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: Ages Number of students 15-18 3 19-22 7 23-26 10 27-30 5 31-34 5 35-38 5 Based on the frequency…

A: Ages Number of students 15-18 3 19-22 7 23-26 10 27-30 5 31-34 5 35-38 5

Q: Consider a sample with a mean of 30 and a standard deviation of 5. Use Chebyshev's theorem to…

A:

Q: 11. Determine if the following statements are true or false. If false, explain why. a. A correlation…

A: Here, we have -0.90 and 0.50 two correlation coefficients.

Q: 7. For each of the six plots, identify the strength of the relationship (e.g. weak, moderate, or…

A: Here, there are six correlation coefficient figures. We will explain each figure with its…

Q: Find P(-1.85 < z < 2.91) Using the Normal table and give answer using 4 decimal places.

A: P(-1.85 &lt; z &lt; 2.91)

Q: If X and Y are independent events with P(X) = 0.1 and P(Y) = 0.4, then P(X n Y) is:…

A: X and Y are independent eventsP(X)=0.1P(Y)=0.4

Q: What is the approximate percentage of buyers who paid between $1560 and $1800? 196 What is the…

A: The population mean is $1800 and standard deviation is $80. It is also given that the graph…

Q: You want to obtain a sample to estimate a population mean. based on previous evidence, you believe…

A: 99% ci for μ.E = 1.1σ = 18.2n = ?

Q: In the first quarter of 2017, a group of mutual funds had a mean return of 6.7% and a standard…

A: X~N( μ , ?)   μ=6.7 , ?=2.3   Z-score =( x - μ )/?   NOTE:- According to bartleby guidelines expert…

Q: The following data represents the age of 30 lottery winners.   21 30 31 32 35 35 36 37 37 40 40 43…

A: given data the age of 30 lottery winners 21 30 31 32 35 35 36 37 37 40 40 43 43 45 46 46 47 49 60 61…

Q: Which of the following are true about regression with one predictor variable (often called "simple…

A: Which of the following are true about regression with one predictor variable (often called "simple…

Q: the number of thunderstorms in indiana in a calendar month is normally distributed with a mean of…

A: Given,sample size(n)=10mean(μ)=75standard deviation(σ)=20

Q: d) Typically five-bedroom houses sell for much more than two-bedroom house consistent with your…

A: (d) Yes, the regression model shows that the coefficient of BDR (number of bedrooms) is positive and…

Q: how many different ways  are there to schedule the speeches

A: Here  Total No of students =6  Now 1st speech is fixed

Q: a. What is the probability that Sammy, a two-year-old boy, will be at least 3 ft tall? Stain? b.…

A: Here AS PER GUIDELINES I HAVE CALCULATED FIRST MAIN QUESTION ONLY AS ALL ARE DIFFERENT.  According…

Q: Absorption and Vigour have a significant effect on each other p<.001 and with the dependent…

A: The correlation and regression outputs are given.

Q: Adsorption. Six identical column adsorption units were fed identical influent for 20 weeks, with the…

A: Adsorption is the process of attraction of atoms, ions of molecules onto the surface. When…

Q: a. Calculate the proportion of sampled airline flights that landed within 15 minutes of scheduled…

A: The data is given on the no. of minutes after the scheduled arrival time that the aircraft arrived.…

Q: 12. Eduardo and Rosie are both collecting data on number of rainy days in a year and the total…

A: Here, both are collecting the data of rainy days and total rainfall in a year.

Q: Test the hypothesis that the true average hours worked per week is not equal to 55. What is the…

A: The data is given on the Student_Data_BUS. Sample size (n) = 28 Let μ be the population mean hours…

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: normal distribution μ = 145σ = 27.5n = 39P(140&lt;X¯&lt;191) = ?

Q: Suppose that a diagnostic test has been shown to be 80% effective in detecting a genetic abnormality…

A: a. Suppose p is the true detection rate of abnormality.

Q: n to 5 o per of .02 .72 le A

A: Given data Two random samples, A and B, were selected from the same population to estimate the…

Q: O CONFIDENCE INTERVALS AND HYPOTHESIS TESTING Confidence interval for the population mean: Use of…

A: sample size (n) = 17sample mean ( x¯ ) = 71sample standard deviation (s) =1.599% ci for population…

Q: Mean=8, median =11, standard deviation = 5 Find the coefficient of skewness (round to two decimals)

A: Answer: From the given data, mean = 8 , median = 11  and standard deviation = 5

Q: For a particular regression analysis, SST= 126.99 and SSR= 110.19 (round to four decimal places as…

A: Answer: From the given data, SST = 126.99    and     SSR = 110.19

Q: Find a 95% confidence interval for the proportion two ways, using Statkey or other technology and…

A: Sample size n=120 Sample proportion p^=0.583 Confidence level is 95% i.e., 0.95 Significance level…

Q: Comparing Normal and Bootstrap Confidence Intervals Find a 95% confidence interval for the mean two…

A: Sample size n=25 Sample mean x¯=15.98 Sample standard deviation s=11.11

Q: What parameter would we put into our hypotheses if we are working with the Age variable? α μ P σ

A: Hypothesis is the statement that explain the claim of the research using the population parameter.…

Q: Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi…

A: normal distribution μ = 4.8σ = 1.3

Q: There have been numerous attempts that relate happiness with income. In a recent survey, 290…

A: The contingency table is, State                                                            Income…

Q: Let the variable Z stand for a standard normally-distributed variable. Find these probabilities  a.…

A: standard normal distributionZ~N(0,1)

Q: We can use a confidence interval to determine this.

A: here We want to determine if the true proportion of students who consume caffeine is not equal to…

Q: there is no work shown how to get standard deviation or Variance  if I could have my questions back…

A: Answer:- Given, 28%  of U.S. employees who are late for work blame oversleeping. That is,…

Q: Consider two events, A and B, such that P(A) = 0.60, P(B) = 0.35, and P(A and B) = 0.25. Are events…

A: Consider the two events A and B. PA=0.60 PB=0.35 PA∩B=0.25

Q: A survey of attendance records shows that high school seniors average 10.5 sick days per school year…

A: Let, x denotes sick days per school year of high school seniors. It is given that- x~N10.5,5.25

Q: The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 42…

A: From the provided information, Mean (µ) = 42 Standard deviation (σ) = 18 X~N (42, 18)

Q: A graduate student believes that people consider faces with more contrast between lip color and skin…

A: Believe : People consider faces with more contrast between lip colour and skin tone as more famine :…

Q: The following table provides the joint probability distribution for the 98th Congress by political…

A: C1 C2 Total P1 0.5 0.084 0.584 P2 0.313 0.103 0.416 Total 0.813 0.187 1

Q: The following question parts are unrelated. a) If X and Y are independent events with P(X) = 0.2 and…

A: According to the given information, we have Given that X and Y are two independent events such that,…

Q: Let X₁ ~ Bin(n₁,p) and X₂ ~ Bin(n2, p). Find the distribution function of Y = X₁ + X₂. Assume X₁ L…

A: X1~Binn1,p, X2~Binn2,p, Y=X1+X2

Q: Chris is a student at Mathville High School. He is conducting a survey at his school to learn how…

A: Sampling is the procedure used to take samples from a larger population. They are broadly divided…

Q: What is the size of the sample:  What is the size of the population:

A: A political scientist surveys 30 of the current 129 representatives in a state's legislature.

Q: Suppose the following data are product weights for the same items produced on two different…

A: a) Null hypothesis: H0: The two populations of product weights are identical. Alternate hypothesis:…

Q: Consider the following time series:   Quarter Year 1 Year 2 Year 3 1 66 63 57 2 48 40 50 3 59 61…

A: Quarter Year 1 Year 2 Year 3 1 66 63 57 2 48 40 50 3 59 61 54 4 73 76 67

Q: Mr. Guo selects a random sample of size n = 16 from a populatio that is normally distributed. The…

A: n=16x¯=78σ2=4

Q: accuracy of fast food drive-through orders, one restaurant had 40 orders that were not accurate…

A: Sample size n =335 Favorable cases x =40 Sample proportion p^=x/n  =40/335 =0.1194

Q: About 7% of the population has a particular genetic mutation, A group of 100 people is randomly…

A: Answer: From the given data, n = 100 p = 7% =0.07 X~Binomial distribution(n,p)