How long it takes paint to dry can have an impact on the production capacity of a business. An auto body & paint business invested in a paint-drying robot to speed up its process. An interesting question is, "Do all paint-drying robots have the same drying time?" To test this, suppose we sample five drying times for each of different brands of paint-drying robots. The time in minutes until the paint was dry enough for a second coat to be applied was recorded. Suppose the following data were obtained. Robot 1 Robot 2 Robot 3 Robot 4 127 145 134 149 137 133 144 141 135 143 137 136 125 146 137 141 141 128 128 153     Find the value of the test statistic. (Round your answer to two decimal places.)   Find the p-value. (Round your answer to four decimal places.) p-value =

Q: Health Canada wishes to estimate the mean amount of mercury μ. in parts per million (ppm), in…

A: We have given the data of Health Canada wishes to estimate the mean amount of mercury µ in ppm, in…

Q: A fitness center is interested in finding a 90% confidence interval for the mean number of days per…

A: sample size(n)=273 mean(x)=3.5 standard deviation(s)=1.9 confidence level=90%

Q: Using the linear correlation coefficient of r = 0.89, the coefficient of determination (R²) is…

A: r=0.89

Q: What is the point estimate of the proportion of women who trust recommendations made on this…

A: A magazine reports that women trust recommendations from a particular social networking site more…

Q: What is the p value if, in a left tail hypothesis test, Z-test statistic = -1.98 P value (round to…

A: Answer: From the given data, Test statistic(Z) = -1.98 It is a left tailed hypothesis test,

Q: A sample of 28 observations is taken from a normal distribution with unknown mean, the sample mean…

A: n= 28x¯ = 10.6σ = 2.899% ci for μ = ?

Q: A report statesb that 49% of home owners had a vegetable garden, how large a sample is needed to…

A: Answer: From the given data, Population proportion (p) = 49% = 0.49 Margin of error (ME) = 8% = 0.08…

Q: -0.60 0.40 -0.50 0.50 0.40 and reliability coefficients abov cond factors is respectively for this…

A: Sr. No. factor-I Factor-II 1 0.70 -0.60 2 0.60 0.40 3 0.70 -0.50 4 0.60 0.50 5 0.50 0.40

Q: An advertising firm wishes to demonstrate to its clients the effectiveness of the advertising…

A: The random variable X is the campaign cost The random variable Y is the increase in sales The given…

Q: raph shows the results of a survey of a college class. Find the mean, median, and mode of the data.…

A: Data from circle graph.  18 19 20 21 22 23 24 28 36 68

Q: i need this, the t statistic, and p value

A: x 11 11 7 9 14 -2 -1 5 24 -4 -3 12 12 9 2 7 11

Q: Example problem Degrees of freedom is n-1. Can you please explain to me why we use df=35 instead?…

A: Hypothesis is an assumption that is being tested.

Q: Suppose the returns below are normally distributed. Based on these values, what is the approximate…

A: For the distribution (specified to be distributed normally) of the return (in %), it is given that:…

Q: The paper “Linkage Studies of the Tomato” (Transactions of the Canadian Institute, 1931) reported…

A: H0: The proposed 9:3:3:1 genetic model is correct. Ha: The proposed 9:3:3:1 genetic model is not…

Q: Here is a bivariate data set. x y 44.5 37.1 33 19.5 40.1 33.9 26 122.3 32.3 44.5 38.6 21.8 44 -36.9…

A: x y 44.5 37.1 33 19.5 40.1 33.9 26 122.3 32.3 44.5 38.6 21.8 44 -36.9 42.5 -16.4…

Q: A quality control expert at a drink bottling factory took a random sample of 9 bottles from a…

A: The sample size: n=9 The sample mean: x¯=505 mL The sample standard deviation: s=6 mL Confidence…

Q: A nurse at a local hospital is interested in estimating the birth weight of infants. How large a…

A: The confidence level is 0.98 The margin of error  ME=2 The population standard deviation σ=8 The…

Q: 20. Find the mean and standard deviation of the following data:

A: Class Frequency 1 - 5 2 6 - 10 5 11 - 15 2 16 - 20 1

Q: The better-selling candies are often high in calories. Assume that the following data show the…

A: The data for samples of three types of chocolates are given as- M&M's Kit Kat Milky Way II…

Q: Find the mode for the following data 18,17,73,73,51,37,17,38,41,17

A: Answer: From the given data, Given data is, 18,17,73,73,51,37,17,38,41,17 Sample size (n) = 10

Q: If n=13, x(x-bar)=48, and s=7, find the margin error at a 99% confidence level. Give your answer to…

A: From the provided information, Sample size (n) = 13 Sample mean (x̄) = 48 Sample standard deviation…

Q: Using standard normal table or Excel function find the given probability is, P(Z>0.24)

A: standard normal distribution Z~N(0,1) P(z>0.24) = ?

Q: A data set with r = 0.9 has a stronger fit than a data set with r = –0.9. True or false?

A: The correlation of a data set is 0.9 and the correlation of another data set is –0.9.

Q: Occupation Farmers, foresters, and fishermen Miners and quaarrymen Gas, coke, and chemical makers…

A: The given data is Smoke Index Lung Cancer Index 77 84 137 116 117 123 94 128 116 155…

Q: Given r = -0.35, MX = 10.32, Sx = 2.66, MY = 6.04, and SY = 1.39, what is the regression equation?

A: The given values are r=-0.35,MX=10.32,SX=2.66,MY=6.04,SY=1.39.

Q: Find the area of the shaded region. The graph depicts the standard normal distribution of bone…

A:

Q: K For a large supermarket chain in a particular state, a women's group claimed that female employees…

A: From the sampled 55 employees (i.e., the sample size, n=55), the no. of employees, who are women,…

Q: A line waiting for tickets to an event has a normal distribution and the mean time is 23 minutes.…

A: Population mean, μ=23 Population sd, σ=4

Q: You may need to use the appropriate technology to answer this question. Consider the following…

A: H0: μ1 − μ2 = 0 Ha: μ1 − μ2 ≠ 0 sample 1 n1=35 x1=13.6 s1=5.6 sample 2 n2=40 x2=10.1 s2=8.1

Q: Find the variance for the given data, 15,3,6,18,17

A: Answer: From the given data, 15,3,6,18,17 Sample size(n) = 5

Q: Suppose that X is a normally distributed with mean 45 and standard deviation 12 Find the P(X>28)

A: Answer: From the given data, mean (μ) = 45 standard deviation(σ) = 12 X follows normal distribution,

Q: Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of…

A: Hypothesis to be tested: H0​: μd = 0 H1​: μd ≠ 0 Here, difference d is defined as the measurement…

Q: Casinos are required to verify that their games operate as advertised. American roulette wheels have…

A: The given expected counts are: Color Red Black Green Expected counts 94.74 94.74 10.53

Q: A confidence interval for a population mean has length 22 1) Determine the margin of error 2)…

A: Answer: From the given data, A confidence interval for a population mean has  length 22 Sample…

Q: Ex: how do you test 1) two-sample exponential distributions without censoring? 2) two-sample…

A: two - sample exponential distributions without censoring: To test the equality of two exponential…

Q: the proportion of chosen individuals that s = (x) 6 2 00 8 9

A: To calculate the proportion of correct decisions, we need to add up the number of individuals who…

Q: A bus company advertised a mean time of 150 minutes for a trip between two cities. A consumer group…

A: A bus company advertised a mean time of 150 minutes for a trip between two cities. A consumer group…

Q: Use the contingency table below for the recoded AGE variable and the TRUST variable in the GSS 2002.…

A: The contingency table for AGE and TRUST variables is given.

Q: For a standard normal distribution, find: P(z < c) = 0.9811 Find c rounded to two decimals

A: Answer: For a standard normal distribution, We have P(Z &lt; c) = 0.9811

Q: Find the mean and standard deviation of the binomial distribution,  P=0.54 and n=32

A: From the provided information, p = 0.54 and n = 32

Q: 7. Describe the shape of the distribution given by the frequency distribution table below: Score 10…

A: The given data is as follows, Score Frequency 10 177 20 2308 30 5698 40 12549 50 29786

Q: 2. Suppose you have a list of all of the TAMUT students with birthdays in April. How many names…

A: First, we note that there are 30 days in the month of April. Suppose, we select N students randomly…

Q: 9. The cumulative frequency of the 4th bin in a frequency distribution table represents: a) the…

A: The cumulative frequency of the 4th bin in a frequency distribution table

Q: A new industrial oven has just been installed at Piatt Bakery. To develop experience regarding the…

A: The six sample readings of the 4 different places are given as:

Q: Please use the data on AGE in the student survey to run a hypothesis test comparing your individual…

A: Individual Age: 20 Data Points for Age in Student Survey: 22, 21, 24, 19, 26, 19, 22, 20, 23, 21,…

Q: what so is the probability that a college will have to wait on someone to get free? Assume the needs…

A: Here Given  Probability that college needing technical support person = p= 0.2  Sample Size= n= 10

Q: If the sample size stays the same and the confidence interval is changed from 90 to 99 percent,…

A: If the sample size stays the same and the confidence interval is changed from 90 to 99 percent

Q: Benson Manufacturing is considering ordering electronic components from three different suppliers.…

A: The chi-square test is used to measure the independence between the categorical variables. The…

Q: A data set includes 107 body temperatures of healthy adult humans having a mean of 98.7°F and a…

A: given data sample size (n) =107sample mean ( x¯ ) = 98.7sample standard deviation (s) =0.7299% ci…

Q: Kellogg's Froot Loops cereal comes in six colors: orange, yellow, purple, red, blue, and green.…

A: The count for each color is given and n=120 and k=6.