An airline company is interested in improving the customer satisfaction rate from the 74% currently claimed. The company sponsored a survey of 176 customers and found that 139 customers were satisfied. What is the test statistic z?  Ex: 2.22 What is the p-value? Ex: 0.123 Does sufficient evidence exist that the customer satisfaction rate is higher than the claim by the company at a significance level of a = 0.01? Ex: yes or no

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A: Givenp=0.50x=156n=283p^=xn=156283=0.5512α=0.05

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Q: An airline company is interested in improving customer satisfaction rate from the 55% currently…

A: Given data p=55% n=280 x=168

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A: Given that Sample size n =377 Favorable cases x =30

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

A: Given,   The sample proportion is,

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

A: The random variable is rate of inaccurate orders. It follows binomial distribution. We have to use…

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

A: Given information- Sample size, n = 312 Population proportion, p = 0.10 Significance level, α = 0.10…

Q: An airline company is interested in improving customer satisfaction rate from the 72% currently…

A: Given,   The sample proportion is,

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

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

A: We have given that  Sample size n=305 ,x=36 Sample proportion p^=x/n

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

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Q: Jump to level 1 A home improvement company is interested in improving customer satisfaction rate…

A: Given that  Sample size n =287 Favorable cases x =190 Sample proportion p^=x/n =190/287 =0.6620

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Q: A home improvement company is interested in improving customer satisfaction rate from the 80%…

A: Given data number of success , x= 138.0 sample size, n = 164 population…

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

A:

Q: In a study of the accuracy of fast food​ drive-through orders, one restaurant had 31 orders that…

A: given data,x=31n=392p^=xn=31392=00.791α=0.05p=0.10Hypothesis : H0:p=0.10, Ha:p≠0.10

Q: An airline company is interested in improving customer satisfaction rate from the 53% currently…

A: Consider that p is the true rate of customer satisfaction.

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

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Q: A home improvement company is interested in improving customer satisfaction rate from the 51%…

A: Given that,possible chances (x)=76sample size(n)=136success rate ( p )= x/n = 0.5588success…

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

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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

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

A: 1. Denote p as the true proportion of fast food drive-through order, that are not accurate.

Q: An airline company is interested in improving customer satisfaction rate from the 70% currently…

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Q: A home improvement company is interested in improving customer satisfaction rate from the 80%…

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Q: In a study of 811 randomly selected medical malpractice​ lawsuits, it was found that 496 of them…

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Q: Historically, the percentage of U.S. residents who support stricter gun control laws has been 55%. A…

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Q: A home improvement company is interested in improving customer satisfaction rate from the 80%…

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Q: A home improvement company is interested in improving customer satisfaction rate from the 56%…

A: From the given information, let X be the number of customers were satisfied. X = 126. Total number…

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

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