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Ierofanga [76]
2 years ago
6

A newspaper report claims that 30% of all tea-drinkers prefer green tea to black tea. Leo is the office manager at a company wit

h thousands of employees. He wonders if the newspaper’s claim holds true at his company. To find out, Leo asks a simple random sample of 125 tea-drinking employees which they prefer: green tea or black tea.
Here's Leo's null hypothesis:The proportion of all tea-drinkers at the company that prefer green tea to black tea is...
Mathematics
1 answer:
kobusy [5.1K]2 years ago
3 0

Answer:

He wants to see if the proportion of the 125 tea-drinking employes is, as the newspaper report claims, 30%.

Then the null hypothesis says that this is false and that there is no relation between the events.

Then the null hypothesis is:

The proportion of all tea-drinkers at the company that prefer green tea to black the is not the 30%

Which is the negation of the thing that Leo wants to check.

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what do i write for this " Write a problem that requires adding 1 to the quotient when interpreting the remainder."
Mariana [72]
You should write a ( real world situation ) question that can only have whole numbers as a solution because you would divide and then you can not have a fraction left over so instead you add one. For instance there are 132 students going on a field trip. 20 students can fit on each bus. how many buses are needed? 7 because when you divide 132 by 20 you get 6 remainder 12. You can not just make 12 students walk to the location so you would add an extra bus.
6 0
2 years ago
PLEASE HELP I HAVE NO IDEA
Agata [3.3K]
Part 1:

The table showing the decreasing debt is shown as follows:

\begin{tabular}
{|c|c|c|c|}
Starting Balance&Interest Accrued&Payment&Closing Balance\\[1ex]
\$1,853.42&\$22.39&\$400&\$1,475.81\\\$1,475.81&\$17.83&\$400&\$1,093.64\\\$1,093.64&\$13.21&\$200&\$906.85\\\$906.85&\$10.96&\$200&\$717.81\\\$717.81&\$8.67&\$200&\$526.48\\\$526.48&\$6.36&\$200&\$332.84\\\$332.84&\$4.02&\$200&\$136.86\\\$136.86&\$1.65&\$138.51&-
\end{tabular}

The column for interest accrued is obtained by the folmular

I=P(1+0.155)^{\frac{1}{12}}

where P is the month's starting balance.



Part 2:

From the table, the last payment is $138.51



Part 3:

The total amount paid by the time the credit card is payed of is the summation of the "payment" column of the table.

Thus, the total amount is given by:

Payment\ total=2(400)+5(200)+138.51=\$1,938.51



Part 4:

The debt ratio is given by

Debt\ ratio= \frac{debt}{limit} = \frac{1,853.42}{3,000} \approx0.62
4 0
2 years ago
Read 2 more answers
Find the sum of the first 30 terms of the sequence below an=3n+2
Solnce55 [7]
First off, let's find the 1st term's value, and the 30th term's value,

\bf a1=3(1)+2\implies a1=5\qquad \qquad \quad   a30=3(30)+2\implies a30=92\\\\
-------------------------------\\\\
~~~~~~~\textit{ Sum of an arithmetic sequence}\\\\
S_n=\cfrac{n(a1+an)}{2}~ 
\begin{cases}
n=n^{th}\ term\\
a1=\textit{first term's value}\\
----------\\
a1=5\\
a30=92\\
n=30
\end{cases} \implies S_{30}=\cfrac{30(5+92)}{2}
\\\\\\
S_{30}=15(97)
6 0
2 years ago
Read 2 more answers
Cary claimed that the expression − 5 + m − 5 + m is negative. Determine whether Cary's claim is always true, sometimes true, or
atroni [7]

Answer:

The given Expression is sometimes true.

Step-by-step explanation:

from the question,

The given expression by Cary is   -5 + m -5+ m.

So, solving the expression we get

     ⇒            -10+2m

                     Let m is an integer.

Whenever,  

                   (a)    m < 5                             { m = 4,3,2,1,0,-1,-2.......................}

                  The given Expression always gives negative value.

                  (b)     m\geq 5                             {m = 5,6,7,8,9.......................}

                  The given Expression always gives positive value.

Here, we get that the given Expression is not providing the Negative value always, that's why it is not always true and can't be never true.

Hence,

According to Cary's claimantion the given Expression is sometimes true.

5 0
2 years ago
A gardener brought 5 rabbits, after 2 months rabbits became 10, and after 4 months they became 20. If the growth continues on th
Bogdan [553]

Answer:

60

Showing-MY-Work:

4 months is 1/3 of a year. (12 months = 1 year)


Since know that they became 20, after 4 years, then we just times 20 by 3.

Because 3 times 4 = 12

20 times 3 = answer you're looking for

8 0
2 years ago
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