A random sample of 25 kids were asked about their favorite animated movie and here are their answers: Boss Baby Shrek Cars |Cars |Toy Story Frozen Frozen Cars Toy Story Boss Baby Frozen Cars |Up Shrek |Toy Story Frozen Shrek |Toy Story Cars Frozen Cars Frozen Frozen Сосо Frozen

Q: Newborn babies in public hospitals in a certain city weighs on average 3.5 kg with a standard deviat...

A: Given,mean(μ)=3.5standard deviation(σ)=0.75

Q: 2. Jane, Paul and Peter can finish painting the fence in 2 hours. If Jane does the job alone she can...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: 1. State whether the scatter diagram shows strong positive correlation, weak positive correlation, s...

A: Since we know that Positive correlation :- Both variable move in a same direction in other words as ...

Q: Calculate the SEMean Construct a 98% confidence interval for the population scores of Mrs. Paul’s s...

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Q: Below is a probability distribution for the number of math failures of BC students. 1 2 3 4. P(X) .4...

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Q: The time it takes a person to make a simple cash withdrawal in an ATM machine is said to normally di...

A: We have given that.   X~N( μ , ?^2 )   μ=60 , ?=8   Z-score =( x - μ )/?  

Q: Given that the test statistic obtained from a large sample for a two-tailed test is 1.82, what is th...

A: Given that  Test statistic (z) = 1.82 Two tailed test  P value = ??    We know that  P value will be...

Q: Days Sick Monday 330 Tuesday 280 Wednesday 330 Thursday 300 Friday 290 Saturday 295 The...

A: It is needed to test, whether the daily sick leave usage is consistent (equal).

Q: A dishwasher has a mean life of 12 years with an estimated standard deviation of 1.25 years ("Applia...

A: Given,mean(μ)=12standard deviation(σ)=1.25

Q: : Calculate the coefficient of skewness for the follow- ing distribution : Central value : 1 2 3 4 6...

A: Given data is  Central value 1 2 3 4 5 6 7 8 9 10 Frequency 2 9 11 14 20 24 20 16 5 5

Q: 1 By how many times does the sample size have to be increased to decrease the margin of error by a f...

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Q: You may need to use the appropriate appendix table or technology to answer this question. A simple r...

A: Givenn=54Mean(x)=29.5standard deviation(s)=4.4

Q: Air travel on Mountain Airlines for the past 18 weeks was: Passengees Week 321 328 333 341 337 352 3...

A: When we want to predict the value of one variable, say y, from the given value of another variable, ...

Q: A researcher wished to find out whether the perceptions of a persons height depends on that person’s...

A: The objective of the researcher was to find whether the perception of a person's height by the army ...

Q: Use the Hypergeometric formula:  A high school graduation committee  is to be formed by choosing ran...

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Q: "The water bills for residents in Davao City have a mean of Php3406 and a standard deviation of Php2...

A: We have given that,  Mean = 3406, population standard deviation (σ)= 236 and sample size (n) = 109  ...

Q: Show complete solution In how many ways can 5 boys and 5 girls be seated in row of 10 chairs a) with...

A: "Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you. T...

Q: "An electrical firm manufactures light bulbs that have a length of life that is approximately normal...

A: Mean(µ) = 858 Standard deviations (σ) = 54 Sample size (n) = 50 X ~ N (µ, σ )= N ( 858, 54) x̅~ N (µ...

Q: You are interested in finding a 95% confidence interval for the average number of days of class that...

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Q: In testing Ho: H = 100 versus Ha: µ= 100 versus using a sample size of 325, the value of the test st...

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Q: ALPHA = 0.05             Shift       1 2 3   Machine A 10 7 9   B 10 7 6   C...

A: Introduction: It is of interest to test whether the machines and shifts are operating consistently, ...

Q: Show complete solution A) How many four-digit numbers can be formed from the digit 0, 1, 2, 3, 4,5, ...

A: Given: Available digits are:  0, 1, 2, 3, 4,5, 6, 7, 8 ,9 Each digit can be used only once.  

Q: 2. Refer to the chart below for the following questions. Adult unemployment in the Nordic countries ...

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Q: The response time in milliseconds was determined for three different types of circuits that could be...

A: One way ANOVA : The one-way analysis of variance (ANOVA) is performed to see if there are any statis...

Q: The reading speed of second grade students in a large city is approximately​ normal, with a mean of ...

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Q: A psychologist is interested in constructing a 99% confidence interval for the proportion of people ...

A: Givenx=73n=831p^=xn=73831=0.0878confidence level = 99%

Q: The average household size in a certain region several years ago was 4.3 people. A census worker wis...

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Q: elp im so confused. With venn diagram pls. thanks A group of 65 students was surveyed, and it was f...

A: Disclaimer : “Since you have posted a question with multiple sub-parts, we will solve first three su...

Q: The following is a list of 14 measurements. - 13, -6, -45, 53, –3, 83, –23, 79, – 17, –96, – 18, 91,...

A: Given: A list of 14 measurements. -13,-6,-45,53,-3,83,-23,79,-17,-96,-18,91,53,-13

Q: 3.108 Find the numerical values of 6. а. b. Р P с. d.

A: Here we need to find out the permutation and combination. Permutation formula: P(n,r) = n!/(n-r)! Co...

Q: A statement is made about correlation. State whether the correlation is positive or negative and whe...

A: Let X and Y are two variables. The correlation measures the degree of relationship between that two ...

Q: What is the area of the shaded region shown in the given figure? -1.96 1.96

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Q: lim + 2x – 15 Evaluate x → 3 x - 9 2. 2.

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Q: S iS weignt of Potassium bromide which will dissolve 100 gm of water at T°C. Fit an equation of the ...

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Q: It is found that the probability that a person has brown eyes is 61.66%. Considering a group of 412,...

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Q: 5. Suppose the random variable X represents the time it takes to complete orders at The Thoughtful C...

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Q: In the country of United States of Heightlandia, the height measurements of ten-year-old children ar...

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Q: Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval...

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Q: Suppose a research paper states that the distribution of the daily sea-ice advance/retreat from each...

A: Solution

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support...

A: We have given that,  Margin of error (E) = 5% = 0.05 and confidence level (C.I) = 95% = 0.95  Then, ...

Q: 13. A population has a u = 55 and o = 18. A random sample of n = 81 is selected. Calcu the standard ...

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Q: Given that X is a normal variable whose distribution has a mean 10 and a standard deviation of 2.5, ...

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Q: Two dice, a 8-sided one and a  10-sided one are shaken in a cup then "rolled" onto a table.  How man...

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Q: In a random sample of 8 ​people, the mean commute time to work was 34.5 minutes and the standard d...

A: Givensample size(n)=8Mean(x)=34.5for standard deviation(σ)=7.4 the 98% confidence interval is (26.7 ...

Q: "An electrical firm manufactures light bulbs that have a length of life that is approximately normal...

A: Solution: option b)0.2177 is right Explanation:  

Q: Calculate the coefficient of skewness for the following distribution of daily wages in a manufacturi...

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Q: Illustration 15.6. On the basis of figures recorded below for "supply" and "price" for nine years, b...

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Q: Suppose that the speed at which cars go on the freeway is normally distributed with mean 80 mph and ...

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Q: Construct a 95% confidence interval of the population proportion using the given information. x= 75,...

A: We have given that,  Favorable cases (X) = 75 and sample size (n) = 250  Then,  We will find the 95%...

Q: Interpret the results. Select the correct choice below and fill in the answer box to complete your c...

A: We have given that the sample mean 22.1 miles and sample standard deviation 5.1 miles of sample size...