In a study of the accuracy of fast food​ drive-through orders, one restaurant had 38 orders that were not accurate among 327 orders observed. Use a 0.05 significance level to test the claim that the rate of inaccurate orders is equal to​ 10%. Does the accuracy rate appear to be​ acceptable?

Q: A study was performed to determine the percentage of people who wear life vests while out on the…

A: Answer  Given  Sample proportion [p1] =0.886 Sample proportion [p2] =0.935 sample size [n1] =500…

Q: A 2016 Pew Research poll found that 18% of cell phone owners use their phone for conducting…

A: It is given that the total number of cell phone uses are 18%, thus the population proportion is…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 315 tested​…

A:

Q: A television executive claims that the percent of households that watch the Macy's parade on…

A: The null and alternative hypothesis is given by,H0:P=0.65Ha:P<0.65 Given: n=171, x=households…

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A: The objective of this question is to test the claim that the proportion of homes in Oregon that are…

Q: onsider a drug testing company that provides a test for marijuana usage. Among 344 tested​…

A: The provided information is  n=344x=26α=0.01p^=xn=26344=0.075 a. The null and alternative hypothesis…

Q: A graduate student believes that people consider faces with more contrast between eye color and skin…

A: Explanation for the first part: Given a null hypothesis H0, we either conclude that there is not…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 40 orders that were…

A: The null and the alternative hypotheses are, H0: p=0.10 HA: p≠0.10 The proportion of inaccurate…

Q: A recent survey showed that from a sample of 500 packages delivered by a Postal Service, 480 were…

A: Given: p0=0.98α=0.01n=500x=480

Q: ner together seven nights a week has decreased? Use the a = 0.05 significance level. cause npo (1-…

A: We have given that  Sample size n = 1126 Favorable cases x = 305 Sample proportion p^=x/n

Q: Consider a drug testing company that provides a test for marijuana usage. Among 253 tested​…

A: The appropriate Null and Alternative Hypotheses are given below:   From the given information, the…

Q: A recent survey showed that from a sample of 500 packages delivered by a Postal Service,480 were…

A: Given that :  A recent survey showed that a sample of 500 packages delivered by a postal service,…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 36 orders that were…

A:

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 37 orders that were…

A:

Q: a study was conducted to determine the proportion of people who dream in black and white instead of…

A: The objective of this question is to test the claim that the proportion of people over 55 who dream…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 39 orders that were…

A: Given Information: Sample size n=328 No. of orders that were not accurate is x=39 Significance level…

Q: In a study of store checkout-scanners, 1234 items were checked for pricing accuracy; 20 checked…

A: It has been given that, Total items that were checked (n) = 1234 Number of items that are…

Q: A Pew poll found that in a sample of 1002 adults, 621 had a social media account. The study was…

A: given, x1 = 621                              x2 = 631 n1 = 1002                            n1 = 971…

Q: The US Department of Energy reported that 47% of homes were heated by natural gas. A random sample…

A: The sample size, i.e., the sampled number of homes, n=320.The number of sampled houses, that are…

Q: Mickey D’s In a study of the accuracy of fast food drive-through orders, McDonald’s had 33 orders…

A: Given Data

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A: In a survey in New York and California, 37 out of 197 knew the product in New York 99 out of 305…

Q: he US Department of Energy reported that 52% of homes were heated by natural gas. A random sample of…

A: Given that:The proportion of homes that were heated by natural gas is .Sample size, The number of…

Q: a study was conducted to determine the proportion of people who dream in black and white instead of…

A: The objective of this question is to conduct a hypothesis test to determine if the proportion of…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 324 tested​…

A: Given that  Sample size=324 Number of subjects wrong (X)=26 Population proportion=0.10 Significance…

Q: A professor wants to determine if the time of day that a class is held has any impact on exam…

A: We know that, significance level shows the probability that test will produce significant result.…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 34 orders that were…

A: given data claim : p =0.10n = 373x = 34α = 0.05p^ = xn = 34373 = 0.0912

Q: The US Department of Energy reported that 51% of homes were heated by natural gas. A random sample…

A: The random variable heated by natural gas follows normal distribution. The sample size is 312. The…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 39 orders that were…

A: From the provided information, level of significance (α) = 0.05 Sample size (n) = 349 Number of…

Q: In a random sample of 315 people 90 of them were smokers. Based on the above sample test whether the…

A:

Q: Consider a drug testing company that provides a test for marijuana usage. Among 292 tested​…

A:

Q: A service station owner believes that equal numbers of customers prefer to buy gasoline on every day…

A: It is needed to test the whether the number of customers who prefers to buy gasoline on each day of…

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 32 orders that were…

A: From the provided information, The hypotheses can be constructed as: H0: p = 0.10 H1: p ≠ 0.10 The…

Q: onsider a drug testing company that provides a test for marijuana usage. Among 316 tested​ subjects,…

A: Given that, x=29,n=316 The sample proportion is,

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 33 orders that were…

A: Answer:-

Q: Use the stat crunch data and determine if the mean quiz score is higher for those to take the quiz…

A: It is given that, the sample size n is 10.

Q: Consider a drug testing company that provides a test for marijuana usage. Among 349 tested​…

A: Given that,  x=26,n=349 The sample proportion is,

Q: In a study of the accuracy of fast food​ drive-through orders, one restaurant had 37 orders that…

A: From the provided information, level of significance (α) = 0.05 Sample size (n) = 338 Number of…

Q: In a study of the accuracy of fast food drive through orders, one restaurant had 37 orders that were…

A: Given information Total inaccurate orders (x) = 37 Total orders n = 301 Proportion of inaccurate…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 253 tested subjects,…

A:

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 36 orders that were…

A:

Q: er the age of 18 who eat dinner toget than the level of significance. Theref an the level of…

A: Given data number of success , x= 515.0 sample size, n = 1172 population…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.