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storchak [24]
3 years ago
9

The waiting time for customers at MacBurger Restaurants follows a normal distribution with a population standard deviation of 1

minute. At the Warren Road MacBurger, the quality-assurance department sampled 50 customers and found that the mean waiting time was 2.75 minutes. At the 0.05 significance level, can we conclude that the mean waiting time is less than 3 minutes? State the null hypothesis and the alternate hypothesis. State whether the decision rule is true or false: Reject H0 if z < −1.645. True False Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.) What is your decision regarding H0? Reject H0 Do not reject H0 What is the p-value? (Round your answer to 4 decimal places.) Next Visit question mapQuestion 3 of 4 Total 3 of 4 Prev
Mathematics
1 answer:
mr Goodwill [35]3 years ago
5 0

Answer:

BLUEFACE BABY YEAH AIGHT I WANNA SEE YOU BUST DOWN THOTIANA.

Step-by-step explanation:

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Answer:

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-3 +3(n+8)= 2(1 + 6n) - 8
lilavasa [31]

Answer:

3 =n

Step-by-step explanation:

-3 +3(n+8)= 2(1 + 6n) - 8

Distribute

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Combine like terms

21+3n = 12n -6

Subtract 3n from each side

21+3n-3n = 12n-3n -6

21 = 9n -6

Add 6 to each side

21+6 = 9n-6+6

27 = 9n

Divide each side by 9

27/9 = 9n/9

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3 years ago
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For 12 days, Keisha keeps track of how much water she drinks per day. her results are shown below
mezya [45]

The total amount of water that Kiesha drinks in 12 days is 20 quarts

The average amount of water she drinks per day is 1 2/3 quarts

The number of days that Keshia drinks at least the average amount of water is 6 days

If she drinks 1 quart of day 13, the average reduces.

<h3>What is the average ?</h3>

The total amount of water drank in the 12 days can be determined by adding the quarts for each day together. When they are added together, the number is 20 quarts.

Average = total amount drank / number of days 1 2/3 quarts

New average = 20 + 1 / 13 = 21 / 13 = 1 7/13 quarts

The average reduces because the quart drank on the 13th day is less than the amount of water drank on the other days.

To learn more about the division of fractions, please check: brainly.com/question/25779356

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2 years ago
Which of the following is not a congruence theorem or postulate?
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Answer:

C.) AA

Step-by-step explanation:

AA is a similarity theorem

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Answer:

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Step-by-step explanation:

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