Which is the best estimate for the number who bought fewer than 20 items during their trip? Rel f 0.30- 0.25 0.20- 0.15- 0.10- 0.05- 0 O 0 106 54 204 28 10 20 30 40 Number of items 50 60 70

Q: Al gave correct answers to 47 of the 50 questions on the driving test . What percentage of the…

A: We can give the correct answer in the below st

Q: there are 8 girls and 5 boys on the math team . which ratio correctly describes the relationship…

A: There are 8 girls and 5 boys on the math team.  Ratio indicates how many times one number contains…

Q: What proportion of cars are driving between 75 and 85 miles per hour?

A: We have given that

Q: According to a food website, the mean consumption of popcorn annually by Americans is 62 quarts. The…

A: Given: The mean consumption of popcorn annually by Americans is 62 quarts.  The marketing division…

Q: The average amount of money held by each child in a group of 5 is $0.50.If one of the children loses…

A: Given that: Total number of child = 5Average money held by each child = $0.50

Q: what percent od 60 is 15

A:

Q: In a survey 500 adults were interviewed, 150 said they had early medical checkup. Find the 95% for…

A: Givensample size(n)=500No.of adults said they had early medical checkup(x)=150p^=xn=150500=0.30

Q: Customers at an ice-cream shop took a survey. The results showed that 144 customers rated the shop…

A: Answer

Q: Find the pooled estimate for 21 = 54, x2 = 51, n1 = 186 and n2 = 181. Round your answer to the…

A: Given; x1=54x2=51n1=186n2=181 Pooled estimate for proportion is given as- p¯=x1+x2n1+n2

Q: Four students drove from New York to Florida (1200 miles) at a speed of 40 mi/hr. Because they…

A:

Q: 104 concert-goers at the Glass House in Pomona, California were asked if they know how to play an…

A: Here it is given that- Number of concert goers  = 104 Number of concert goers who can play an…

Q: speech therapist gave a patient an assessment to test articulation. The patient pronounced 5 test…

A:

Q: The temperature for the last 5 days were: 75⁰F, 66⁰F, 80⁰F, 68⁰F and 73⁰F. What was the mean…

A:

Q: A researcher wants to find out the number of students he needs to urvey in a school provided that…

A: Given : total no pf students in a school  N=5000 with margin of error e=5%  To find sample size…

Q: Make a table showing the approximate values and the actual value, together with the percentage error

A: xy'=12x-3y..................1Let x=e2z=logxdzdx=1xdydx=dydz·dzdx ⇒dydz·1xxdydx=dydzNow equation (1)…

Q: find out he 78th percntile for given data  45,78,85,89,3,5,69,63,78

A:

Q: A high school has 40 players on the football team. The summary of the players' weights is given in…

A: Given, Boxplot  of the high school football team.   According to box plot Min value = 152 Max value…

Q: The average (mean) score on an exam was 76.375 in a class consisting of 21 Administration students…

A: From the provided information, The average score on an exam was 76.375 consisting 21 Administration…

Q: The mean weight of 32 math students is 42.6 kg. If the students could all stand on the scale…

A: Given that ; The mean weight of 32 math students is 42.6 kg. If the students could all stand on the…

Q: Report the proportion of the 370 students based on mobile phone brands as a percentage. Apple  269…

A: The percentage of a category can be calculated by dividing the frequency of the category by the…

Q: When 500 junior college students were surveyed,120 said that they have previously owned a…

A: When 500 junior college students were surveyed,120 said that they have previously owned a…

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

Q: 25% of pitchers are left-handed. a survey of 80 pitchers showed 27 are left-handed. find the point…

A: Solution:Point estimate: The population parameter which is estimated by using sample statistic is…

Q: b. μ or p  H0: =, , or ≠ H1:  =, , or ≠ c. z or t

A: (b) State the hypotheses.

Q: a survey found that 75,000 people own a car. This was 75% of the respondents in the survey. What was…

A: Given data: The given people that own a chair are C=75,000. The given percentage is p=75%.

Q: In a recent study, 46% of people enjoy country music.  If 200 people are surveyed about their…

A: Given : Proportion (prop.) of people enjoy country music p = 46% = 0.46 Sample size of people n =…

Q: When 445 junior college students were​ surveyed, 135 said that they have previously owned a…

A:

Q: If a coin is flipped 150 times and the number of Hs is 25. Compute the proportion of Hs. Round to…

A: We have given that,  Favorable cases (X) = 25 and sample size (n) = 150 Then,  We will find the…

Q: The New Yorker on March 29, 2010 James Surowicki wrote that the 25 million iPhones Apple sold in…

A:

Q: The mean of 14 numbers is 49. Removing one of the numbers causes the mean to decrease to 43. What…

A: given data:mean =49n=14 Removing one of the numbers causes the mean to decrease to 43new total…

Q: It is known that, in a small town, 0.22 percent people are allergic to pollen and 0.2 percent people…

A:

Q: A telecommunications company conducted a survey about cell phone companies. Of 1800 randomly and…

A: given  x = 1275 preferred AT&T to Sprint n =Of 1800 randomly and independently selected people…

Q: "Save today by switching to SOAR!" is the slogan for SOAR, a cell phone service provider. Logan…

A: Farmula used Standard error=σ/√n Given  n=75, x̄=sample mean=$19.03, standard deviations=σ=$4.71

Q: Forty percent of the 25 customer who came this morning are adults and the rest are teen. How many…

A: Given: 40% of 25 customers are adults.

Q: The mean of 12 numbers is 48. Removing one of the numbers causes the mean to decrease to 45. What…

A: Measures of Central Tendency: A measure of central tendency represents the central value or typical…

Q: When 450 junior college students were surveyed, 125 said that they have previously owned a…

A: sample size(n)=450 No. of students said that they have previously owned a motorcycle(x)=125