Suppose we wanted to compare the average BMI of a sample of Charleston County residents to the average BMI of US adults u-26.5). Use the data in the table below to conduct the appropriate hypothesis test to see if the average BMI of our sample of Charleston County residents is significantly different than the US adult average. CHS Sample BMI 25.3 27.5 24.2 27.5 28.6 28.6 24.2 22 23.1 29.7 20.9 25.3 26.4 22 29.7 28.6 26.4 24.2 20.9 25.3 What is the value for the test statistic? (round to two decimal places)

Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1433 ...

A: Given: No. of calls challenged by men, n1 =1433 Among them no. of calls overturned, x1=413 No. of ca...

Q: A claim is made that the proportion of college students who have Netflix accounts is 0.92. Mateo bel...

A:

Q: Test the claim about the difference between two population means , and l2 at the level of significan...

A:

Q: With in a fault tree the probabilities of events are, respectively, P(Broken fuel pumps ) = 10-6, P(...

A:

Q: If random samples of size 75 are drawn from a population with mean 50 and standard deviation 22. fin...

A: We have given that,  Sample mean (x̄) = 50, sample size (n) = 75 standard deviation (σ) = 22 Then,  ...

Q: Prove the discrete case for Let X be a random variable with pdf f(x). If a and b are any two real nu...

A:  For discrete case we have to prove  E(aX + b) = aE(X) + b Where a and b are any two real numbers

Q: Home prices increased by 6.0% this year in the Southwest. A Pensacola realtor collects data on 30 ho...

A:

Q: Encr cine: and Determinarnts of Determin the Rank folliwing 11 e matn.cen! 2. B= 2.

A: Given that  Matrices A and B are as follows:          We have to find rank and determine of the ma...

Q: Using the data below, tind the: I. (a) mean (b) median () mode (d) QI (e) Q3 () D7 (g) PIO (h) varia...

A:   Class Frequency 1 - 10 3 11 - 20 6 21 - 30 8 31 - 40 10 41 - 50 12 51 - 60 10 61 ...

Q: The time between failures of our video streaming service follows an exponential distribution with a ...

A:

Q: In Geogebra: use the "Statistics" tab in the Probability Calculator. Click the drop-down menu near t...

A:

Q: For a left-tailed test, if the p-value we reject the null hypothesis O True O False

A: Fir a left tail test ,if p value <alpha ,we reject the null hypothesis

Q: The area to the right of z = 0 is The area to the left of z = 0 is The area to the left of z = −0....

A: Note: This probability value calculated from standard normal distribution table. According to Bartl...

Q: The Dean of a college wants to use the proportion of a population to determine the sample size neede...

A: The random variable X follows normal distribution. We have to find the sample size. This is z-test f...

Q: 3) Medical researchers are studying the relationship between metacarpal fractures and time spent pla...

A: We will find the probability from above table  

Q: It is a function that assigns a real number to each outcome in the sample space of a random experime...

A: We have given that an statement about to real number to each outcome in the sample space of a random...

Q: Find the minimum sample size n needed to estimate u for the given value of c=0.95, standard deviatio...

A: It is given that Standard deviation = 6.5 Margin of error E = 1 The critical value of Z at 0.95 conf...

Q: The tolerable level of a certain pollutant is 16mg/l. A researcher takes a sample of size n = 50, an...

A: Given information- Sample size (n) = 50 Mean x̅ = 18.5 mg/l Standard deviation (s) = 7 mg/l Signific...

Q: | How many 4-letters codes

A: Here Given  We have to choose 4 digit codes from total 9 (1,2,3,4,5,6,7,8,9)  

Q: ssume that adults have IQ scores that are normally distributed with a mean of u = 105 and a standard...

A:

Q: Suppose we want to know whether the mean of unemployment differs among the residents of two local co...

A: Assume that the variance of unemployment in Community A is σ12 and the variance of unemployment in C...

Q: (c) Compute the 99% confidence interval about u if the sample size, n, is 35. A 99% confidence inter...

A:

Q: a) Attendance at large exhibition shows in Denver averages about 8000 people per day, with standard ...

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will an...

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high ...

A: Given: p = 0.52 n = 750 x = 235 Sample proportion, p^ = x/n = 235/750 = 0.3133 α = 0.1  

Q: (a) Find a point estimate for the population proportion of those aged 65 and over who have sleep apn...

A: It is given that Sample size n = 432 Number of people who have sleep apnea, X = 108

Q: a) The table beloW shows the probability distribution Of the discrete random variable X. X 3 4 5 7 P...

A:

Q: Supposed you are getting COVID test based on mild symptoms. If your test result come back as negativ...

A: Null Hypothesis : It is denoted by H0. It is the statement about population parameter  It holds =,≥ ...

Q: Part 2 of 2 If the sample stze were n=47, would the confidence Interval be narrower or wider? The co...

A: Given that  x̄ = 57.6  , s = 9.5  ,  n = 47

Q: 13.) A professor would like to use a 95% confidence interval to estimate the mean amount of time IRS...

A: In question,  Given that A professor would like to use a 95% confidence interval to estimate the mea...

Q: Calculate the appropriate test statistic (rou Determine the appropriate critical value (ro Determine...

A: It is given that Sample size n = 25 Sample SD s = 3.5 Level of significance = 0.05

Q: Changing jobs: A sociologist sampled 204 people who work in computer-related jobs, and found that 40...

A:

Q: Find the expected value of the number of female players in the IUPL cricket team

A: It is given that Number of females,M = 19 Total N = 19+22 = 41 Sample size n = 11

Q: 4. How many datapoints were in the interval (35.2,46.8]? A)1 B) 6 C) 16 D) 3

A: Given that ; A histogram is given and by using the information from histogram we solve this problem....

Q: a. Draw a normal curve distribution showing the 2-Score b. How many applicants are below 20 years ol...

A: here mean = 28 year  standard deviation = 4 year n= 3000 x= age 

Q: The tinal grades for the students in two of Mr. Malaski's classes are shoW. 7h Poriod 18. 66, 72, 77...

A:

Q: For this study, we should use     The null and alternative hypotheses would be:       H0:H0:        ...

A: Given that  Sample size n =62 Sample mean =260 Standard deviation =30.3 NOTE:- According to bartleby...

Q: In 2000, the mean math SAT score for students at one school was 472. Five years later, in 2005, a te...

A:

Q: Helen wants to compare two machines in her factory to see if the wrapping was satisfactory. She want...

A: There are two independent samples which are machine A and machine B. We have to test whether there i...

Q: mammal or threatened foreign species)=

A:

Q: (i) what would be the growth of the plant if 4g of fertilizer and 7g of water was given to it daily ...

A: From the given output (i) what would be the growth of the plant if 4g of fertilizer and 7g of water ...

Q: If commuting times are normally distributed with mean 31.3 minutes and standard deviation 13.2 minut...

A: Mean(µ) = 31.3Standard deviations (σ) = 13.2X ~ N (µ, σ )= N (31.3, 13.2)

Q: 26 if -0 < I< 0 f(x; 0) = . otherwise, where 0< 0 is a parameter. Using the moment method find an es...

A:

Q: The Sweet Encounter is a touring international candy festival. The festival's most popular product i...

A:

Q: We take a random sample of houses currently for sale in Rexburg and we want to use the sqare footage...

A:

Q: Coach Elyson claims that 90% of her volleyball serves are good serves. The captain of the team think...

A: The p-value method is one of the two ways of conducting hypothesis testing in inferential statistics...

Q: Pas_t experie_nce sho_0w that 25% of custom_2ers entering Clothing Store wi_ll make  a pur_chase. Of...

A:

Q: Watch your cholesterol: A sample of 290 patients between the ages of 38 and 82 were given a combinat...

A: The random variable reduction in total cholesterol follows normal distribution. We have to test whet...

Q: erivation. ed trees were measured. Let Ν(μ. 16) . Find P( Y -μ.

A:

Q: 2b.) Draw a Venn diagram for: z

A: Given that ; X, Y and z variables are given  Make a venn diagram for z. 

Q: Suppose that X has a discrete uniform distribution (1/3, x = 1,2,3 |0, f(x) = otherwise A random sam...

A: