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nika2105 [10]
3 years ago
10

Latasha is a waitress at Seventh Heaven Hamburgers. She wants to estimate the mean amount each group at a table leaves for a tip

. A random sample of 42 tables had a mean of = $7.30. Based on long term experience, s ≈ $2.92. Find a 90% confidence interval for the average amount left by all groups..

Mathematics
1 answer:
elena55 [62]3 years ago
3 0
Forgive me if this is wrong. I haven't done stat in a year, but comment if you need clarification!

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Oceanside Bike Rental Shop charges 18 dollars plus 8 dollars an hour for renting a bike. Mary paid 74 dollars to rent a bike. Ho
sesenic [268]

Answer: 7 hours! you do 74-18 to get 56 then you divide 56 by 8 to get 7.

Step-by-step explanation:

hope this helps!!

7 0
3 years ago
(1) How many hours are in 34.5 year?
Alex787 [66]
1 year have <span>8760 hours。
So, 34.5 years have 8760x34.5=</span>302220 hours.
That's your answer.


5 0
3 years ago
Read 2 more answers
I leave my family's vacation cabin at 8 a.m. and start driving home at a nice, safe 45 mph. Two hours later, my husband, who alw
Murljashka [212]

Answer:

2:30 pm

Step-by-step explanation:

In two hours (from 10am), she is 45 * 2 = 90 miles from vacation cabin.

From then on her average is still 45 mph and her husband's is 65 mph. So, husband catches her 20 miles (65-45=20) in every hour.

<em>The husband has to catch up 90 miles. How long would it take if he is catching up at 20 miles an hour?</em>

<em>90/20 = 4.5 hours</em>

<em />

<em>So husband starts at 10am and 4.5 hours form that time is 2.30pm</em>

6 0
4 years ago
Calculate the average between 200 and 4100
yKpoI14uk [10]
<span>4300 / 2 = 2150

Just simply divide</span>
8 0
3 years ago
Read 2 more answers
Solve for x. SHOW YOUR WORK.
alukav5142 [94]

Answer:

1+1=2

Step-by-step explanation:

X is the answer to any math problem, and 1x2=2

3 0
2 years ago
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