Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants Construct a 95% confidence interval estimate of the mean drive-through sermce time for Restaurant X at dinner, then do the same for Restaurant Y. Compare the jesults. EB Click the icon to view the data on drive-through service times Construct a 95% confidence interval of the mean drive-through servce times at dinner for Restaurant X O sec su «Osec (Round to one decimal place as needed) Restaurant Drive-Through Service Times - X Semvice Times (seconds) Restaurant X 82 123 125 123 266 150 210 160 164 105 132 136 125 145 147 Restaurant Y 120 150 105 126 229 139 140 115 129 216 176 182 335 152 152 202 184 155 177 130 294 139 139 304 116 93 205 232 167 235 182 93 244 122 60 175 352 200 158 235 149 141 175 114 137 136 252 106 166 134 199 212 230 193 242 165 80 147 239 235 175 304 199 183 160 135 187 83 58 107 151 179 126 166 314 145 136 162 169 141 101 124 185 144 129 Print

Q: A sample of size n = 10 is drawn from an approximately normal population whose standard deviation is…

A: Givensample Mean(x)=50.9standard deviation(σ)=12.5sample size(n)=10Confidence interval = 99%

Q: The number of hours 10 students spent studying for a test and their scores on that te: significant…

A: Formula : Test statistic

Q: The number of orders received daily by an online vendor of used CDs is normally distributed with…

A: Let X be the random variable from normal distribution with mean (μ) = 210  and standard deviation…

Q: Shift the trend origin from 1996 to 1998 in the following trend equation : Yc = 20 (1.5)X Given that…

A:

Q: Given the trend equation, Yc Y unit = 240-1.8X, where X unit = 6 months and annual production.…

A:

Q: In a test of the effectiveness of garic for lowering cholesterol, 49 subjects were treated with raw…

A:

Q: A sample of 60 Grade 9 students’ ages was obtained to estimate the mean age of all Grade 9 students.…

A:

Q: c) The probability that a score is greater than 200 is (Round to four decimal places as needed.) d)…

A:

Q: At the beginning of the school year a class of students are asked what foreign languages they have…

A: probability= possible case/total case

Q: A researcher wishes to test the claim that the average cost of tuition and fees at a four year…

A: From the provided information, Sample size (n) = 36 Sample mean (x̄) = 5950 Population standard…

Q: Illustration 10,39. Suppose that a prospective buyer tests bursting pressure of samples of polythene…

A:

Q: A sales manager wants to forecast monthly sales for the company's products using the following…

A: A company manager intended to forecast the monthly sales and six months sales are given as below:…

Q: 4.) Use the Independent Samples T-Test on the variable String . State Ho and Ha.The grouping var is…

A: Given the results of independent samples t test.  We have to check does hcpatron influence String.…

Q: 4. The table shows data on the number of visitors to the Malaysia in a month, v (1000s), and the…

A: Given Chart of number of visitors and amount of money spent Find Part a,b and c

Q: Part 1 of 2 Identify the five-number summary. Round your answers to one decimal place as needed. De,…

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

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

A: µ =    23                           µo =    20…

Q: is there enough evidence to reject the claim? STEP 4. Conclusion. A.Reject the null hypothesis,…

A: We have given that  Hypothetical mean = 8 Sample mean = 8.2 Standard deviation = 0.6 Sample size =…

Q: 34. The Edwards's Theater chain has studied its movie customers to determine how much money they…

A:

Q: r answer). 4) One corollary of the Central Limit Theorem is that for a sufficiently large sample…

A: We have given that the statement about to the Central limit theorem is that for a sufficiently large…

Q: Suppose that E and F are two events and that P(E and F) = 0.2 and P(E) = 0.5. What is P(FJE)? P(FJE)…

A: Given: P(E and F) = 0.2 P(E) = 0.5

Q: The trend equation for a time series is fitted as Y. Shift the trend origin from 1998 to 1993, given…

A:

Q: Suppose that the temperatures of healthy humans are approximately normally distributed with a mean…

A: From the provided information, Mean (µ) = 98.6 degrees Standard deviation (σ) = 0.8 degrees X~N…

Q: or two colors, you classify your 250 respondents into four categories: male child, female child,…

A: Given,  chi-square test of independence : 8.81 Cramer's V value interpretation:

Q: 1.4+ 140 Max Weight (kg) 140 220 Max Weight (kg) 220 (b) Calculate the sample correlation…

A: Given  Correlation r=-0.956

Q: A legislative committee consists of 6 Democrats and 5 Republicans. A delegation of 4 is to be…

A:

Q: what is the sample size if the standard deviation is 8 and margin error is 3 at 99%

A: We have given that,  Standard deviation (σ) =8, margin of error (E)= 3 and confidence level (C.I) =…

Q: A machine that fills beverage cans is supposed to put 16 ounces of beverage in each can. Following…

A: Given  Population mean μ=16

Q: pair of (red & blue dice) fair 6-sided dice are thrown simultaneously. Now find the probabilty an…

A: Given that  A pair of (red & blue dice) fair 6-sided dice are thrown simultaneously. S={ (1,1)…

Q: A random sample of size 144 is drawn from a population whose distribution, mean, and standard…

A: Given  Sample statistic=x̄=58.2, n=144, population standard deviations σ=2.6  Find 90% CI for…

Q: What is the area within 1 standard deviation from the mean of a normal curve? a. 95.44% b. 62.86% c.…

A: here given,  use standard normal distribution  area under the curve represented by probability

Q: The number of housing permits (in thousands) issued by a county between 2003 and 2009 is shown in…

A: Here we have to identify for which year the number of permits is greatest

Q: parts (a) through (c) below. O C. Not normal because ns0.05N and np(1-p)< 10. D. Approximately…

A: Given that  Population size N=25000 Population proportion p=0.8

Q: Activity 1.1 Null Vs Alternative Directions: State the null and the alternative hypotheses of the…

A: As per our guidelines we are supposed to answer only 3 subpart of any one question so i am solving…

Q: QUESTION 12 Which of the following suggests a strong correlation between x and y? Or-0 Or-0.2 r--0.9…

A: Here we have to choose the value of r  that represent strong correlation

Q: Hours Spent Jogging A researcher wishes to determine whether the number of hours a person jogs per…

A: Given that  X Y 60 1.5 36 2.5 26 8 55 6.5 40 4.5

Q: You are conducting a hypothesis test where the alternative (research) hypothesis is that population…

A: From the provided information, Sample size (n) = 50 Sample mean (x̄) = 101 Standard error (se) = 2

Q: The test statistics is

A: We have given that  Sample mean = 7.1 Sample standard deviation s = 2.3 Sample size n = 18 α = 0.01…

Q: Describe the sampling distribution of p. Assume the size of the population is 30,000. n= 1200, p=…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: (d) Would it be unusual for a car to spend more than 3 minutes in the restaurant's drive-through?…

A: Given: Mean,μ=158.5sd, s=34

Q: If you're estimating the bias of a coin that came up heads 10 times and tails 20 times, what is the…

A: Hello thank you for the question. According to our honor code can answer one question at a time.…

Q: Research shows that 51% of US citizens are female.  Suppose we are constructing a sampling…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: The mean of the population is 50. The standard deviation is 10. If a person row score is 47. (a)…

A: Given that   μ=50 , ? = 10 , raw score = X = 47

Q: Determine the degree of freedom, right tailed area, t value Percentile - 99.5th n - (13) df - 23…

A: Given that  Percentile=99.5% df=23 Find  n  , Right-tailed area , tcrit

Q: A company manufactures panes of glass. The probability that a pane of glass has bubbles is 0.01. If…

A:

Q: Which is true about the standard normal curve?

A: here use basic of normal curve

Q: The accompanying table shows the maximum weights (in kilograms) for which one repetition of a…

A:

Q: 684&cmid=3615294&page=D3 A hypothesis test is performed on Ho: H = 218 H;: µ # 218 where the null…

A:

Q: A national chain of department stores ranks its 900,000 salespeople by the monetary value of their…

A:

Q: From the following series of irregular fluctuations find the 5- yrly, 7-yrly and 9-yrly moving…

A: