distribution shown in the preceding histogram is    .   Based on the shape of the distribution, which of the following is Variable X more likely to represent? Ages at death (in years) of residents in a US county   Annual salaries (in thousands of dollars) of working professionals in a US town

Q: Ita are used to compare currency exchange rates and the costs of goods in different countries. Fin…

A:

Q: Calculate the sample standard deviation of the data shown. Round to two decimal places. X 22 17 29…

A: The random variable X follows normal distribution. We have to find the sample standard deviation.

Q: ts or Female Students? Information on a sample of 362 college students is collected. The complete…

A: given: n=362 out of 193 males 27 smoke and out of 169 females 16 are smokers

Q: You hypothesize that drinking tea reduces stress levels so you design a study comparing stress…

A: Given: Non-tea drinkers: n1 = 21 X1 = 76 s1 = 25 Tea drinkers: n2 = 26 X2 = 62 s2 = 13 Formula Used:…

Q: meis is takeh fröm a data set and those values (mm Hg) are listed below. The values are matched so…

A: Given data, For systolic: 96,125,145,99,146,100,103,117,144,126   For diastolic:…

Q: Plot 2 Out-of-State Tuition 20000 15000 10000 5000 Plot 2: Distribution of Out-of-State Tuition…

A: The objective of the question is to identify the explanatory and response variables in a given plot.…

Q: Which of the following is least affected if an extreme high outlier is added to your data?…

A:

Q: QUESTION A3 Calculate the test statistic, Z for the population mean.

A: The test statistic is a z-score (z) defined by the following equation. z=(p−P)σ  ,  where P is the…

Q: QUESTION 8 A psychology professor is interested in collecting data on how many hours students study…

A: Since you have asked multiple question, we will solve the one question for you. If you want any…

Q: What is the sample size for this data set? N=

A:

Q: QUESTION 9 You hypothesize that drinking tea reduces stress levels so you design a study comparing…

A: given data do not drink tean1 = 21x¯1 = 76s1 = 25drink tea : n2 = 26x¯2 = 62s2 = 13

Q: Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest…

A: a. Suppose a random variable x defines the data speed of a particular smartphone at airport.

Q: Answer this following questions relate to an outbreak of diarrheal disease among nursing home…

A: Given the table containing characteristics of residents of Nursing home A during an outbreak of…

Q: Refer to Exhibit 13-12. The mean square between treatments (MSTR) equals

A: From given data we have ; SSTR=736 SSE=900 nt=18

Q: QUESTION 7 You hypothesize that drinking tea reduces stress levels so you design a study comparing…

A: given data do not drink tean1 = 21x¯1= 76s1 = 25drink tea : n2 = 26x¯2= 62s2 = 13

Q: In this problem, assume that the distribution of differences is approximately normal. Note: For…

A: The random variable cost of living follows normal distribution. There are two dependent samples…

Q: Assume the mean number of taste buds from the general population is 10,000 with a standard deviation…

A: Given: μ = 10,000 σ = 900 n = 15 X = 10,800 Formula Used: Confidence Interval = X ± Z*σn

Q: Consider the following data set. Round your answers to the nearest hundredth as needed. 84 70 42 61…

A: According to the given information, we have Data set: 84,70,42,61,52,84,84,70,76,55 Total  number of…

Q: Please all the 3 of these sub-questions. Make sure answer is rounded up to 4 decimals. use the…

A:

Q: dults with gum disease were asked the number of times per week they use Oses. The (incomplete)…

A: no. of times floss per week frequency 0 14 1 14 2 8 3 22 4 19 5 9 6 15 7

Q: The U.S. Central Intelligence Agency collects a variety of data pertaining to countries all over the…

A: Answer:----.                     Date:----8/10/2021

Q: What percentage of all possible observations of the variable lie between 1/4 and 5/8

A: Let us first assume that the total proportion is from 0 to 1. The proportion lying between 1/4 and…

Q: Sheet 2 As you look through these same data sheets, you come across a location that is an isolated…

A: The formula is: n= 200, μ = 25, σ2 = 3.4 Using z table: 5. P(μ-0.52σ< X < μ +0.52σ) =…

Q: The monthly expenditures on grocery shopping for all households in a town has a mean of $400 and a…

A:

Q: In this problem, assume that the distribution of differences is approximately normal. Note: For…

A: A B Difference= A-B 132 127 5 109 118 -9 126 139 -13 124 102 22 102 103 -1 96 107 -11…

Q: Calculate the requested statistics for the given test scores (round to 2 decimals if necessary).…

A: For the given data Find mean =? median =? mode =? Range =? Standard deviation =? variance =?

Q: Question 1 What is the median of variable​ x?   The median of variable x is   ​(Round to the nearest…

A: X lies between ( 45 to 55) Y lies between (10, 50)

Q: Question 2 Which of the following tools is used to assess the normality of a distribution? histogram…

A: Here we know that for normality of a distribution, A- we draw the points of observation in intervals…

Q: Do the data indicate that the U.S. population mean cost of living index for utilities is less than…

A: Here two data set are given named as A and B. Where ,  A represents the cost of living index for…

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 51 pounds,…

A: Let X denotes the weights of a certain dog breed. Given that X follows approximately Nμ=51, σ=6.1.…