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GrogVix [38]
2 years ago
9

A television sports commentator wants to estimate the proportion of Americans who follow professional football. What sample size

should be obtained if he wants to be within 3 percentage points with 95% confidence if
(a) he uses a 2010 estimate of 53% obtained from a Harris poll?
(b) he does not use any prior estimates?
(c) Why are the results from parts (a) and (b) so close?
Mathematics
1 answer:
Lesechka [4]2 years ago
8 0

Answer:

A.1,063

B.1.067

C.Since 0.2491 is close 0.25 this means that the results from parts (a) and (b) are close.

Step-by-step explanation:

A. If he uses a 2010 estimate of 53% obtained from a Harris poll

Since E is 0.03

The next stel is to find Z using this formula

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A person owes $1000 on a credit card that charges an interest rate of 2% per month
adelina 88 [10]

Credit card balance each month:

First month: 1020 .00

Second month: 1040.4 0

Third month: 1061,208

Fourth month: 1082.43

Here we have to calculate the interest and add it to capital.

That is, 2% of 1000

First month:

    Interest = 1000 (2/100)

    Odds1 = 1020

Second month

Capital 1020

    Interest = 1020 x 0.02 = 20.4

    Odds2 = 1040.4

Third month

Capital = 1040.4

    Interest = 1040.4 x 0.02 = 20.808

    Odds3 = 1061,208

Fourth month

Capital = 1061,208

   Interest = 1061.208 x 0.02 = 21.22

   Odds = 1082.43

Therefore the credit card balance each month:

First month: 1020 .00

Second month: 1040.4 0

Third month: 1061,208

Fourth month: 1082.43

Learn more about credit card balance here: brainly.com/question/17604713

#SPJ4

The question is incomplete. Completed question is given below:

A person owes $1000 on a credit card that charges an interest rate of 2% per month. Complete this table showing the credit card balance each month if they do not make any payments. Month total bill in dollars11,00021,02031,040.40

3 0
1 year ago
The price of a television before tax is $1625.00. The total price with tax is $1,803.75. What is the rate of the sales tax?
Oksanka [162]

Answer:

11%

Step-by-step explanation:

A sales tax is placed on goods and services once the buyer and seller  agree on what the exchange of currency is.

In this case you take the tax on the 1625 and not the 1803.75.

The buyer agreed to buy the item for 1625 and the seller agreed to sell it for that amount. So the tax goes on 1625.

Tax amount = total price - selling price

Tax amount = 1803.75 - 1625

Tax amount = 178.75

That's not what you want. You want the % of the tax.

% Tax = (Tax Amount / Selling Price) * 100

% Tax = (178.75 / 1625) * 100

% Tax = 0.11 * 100

% Tax = 11%                        Answer

8 0
3 years ago
PLEASE HELP ME!!
Step2247 [10]

Answer:

A = $10,441.68

A = P + I where

P (principal) = $10,400.00

I (interest) = $41.68

Step-by-step explanation:

First, convert R as a percent to r as a decimal

r = R/100

r = 0.02/100

r = 0.0002 rate per year,

Then solve the equation for A

A = P(1 + r/n)nt

A = 10,400.00(1 + 0.0002/2)(2)(20)

A = 10,400.00(1 + 0.0001)(40)

A = $10,441.68

Summary:

The total amount accrued, principal plus interest, with compound interest on a principal of $10,400.00 at a rate of 0.02% per year compounded 2 times per year over 20 years is $10,441.68.

8 0
2 years ago
A population of deer in an area is 2000 and is decreasing at a rate of 15% per year. At this rate what will the deer population
Pepsi [2]
2000 × 15% = 300
300 × 5 = 1500
2000 - 1500 = 500 population after 5 years
4 0
2 years ago
Help me! I need to finish these questions quickly!!!!
goldfiish [28.3K]

Answer:

18

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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