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Rom4ik [11]
3 years ago
14

Randi bought a wallet for $8.33. She paid with a $20 bill. Which of the following could be the change she received?

Mathematics
2 answers:
Travka [436]3 years ago
5 0
I’m pretty sure that the answer is S
Gre4nikov [31]3 years ago
3 0

Answer:

A.

Step-by-step explanation:

She would receive $11.67

A is the correct math

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A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c
In-s [12.5K]

(A.)test statistic for this test using Ha: p8くPN is Z = -2.164 (B.) p-value (3 decimal places) is 0.015. (C.) Based on this p-value, which of the following would you expect for a 95% is negative. (D.) the correct conclusion is The proportion of Boston drivers wearing seat was significantly lower than the proportion of new York drivers wearing seat belts.

A.)

According to given data find the test statistic for this test using Ha:

p1 = 0.581

p2 = 0.832

standard error = SE = 0.116

<h3>Test statistics :-</h3>

Z = \frac{p1 - p2}{SE}

Z = \frac{0.581 - 0.832}{0.116} = -2.164

Z = -2.164

B.)

According to given Determine the p-value (3 decimal places).

<h3>p - value</h3>

it is left tailed test.

p - value for left tailed test is,

p - value = P(Z < test statistics )

p - value = P(Z < -2.164)

P - value = 0.015

C.)

Based on this p-value, which of the following would you expect for a 95%

confidence level = 95% = 0.95

significance level = α = 0.05

P -value is less than 0.05

so, reject null hypothesis at α = 0.05

That is P_{B} < P_{NY}

so, based on P - value , All values in the 95% confidence interval

PB - PNY  is negative.

D.)

According to given data What is the correct conclusion?

Reject null hypothesis at α = 0.05

so, P_{B} < P_{NY}

Hence, The proportion of Boston drivers wearing seat was significantly lower than the proportion of new York drivers wearing seat belts.

know more about test statics visit this link

brainly.com/question/23332597

#SPJ4

3 0
1 year ago
ferdie plants carrots in 2 gardens. in each garden, he plants 3 rows of 7 carrots.what is the total number of carrots ferdie pla
julsineya [31]

Answer:

He planted a total of 42 carrots between the 2 gardens

Step-by-step explanation:

3 x 7 = 21

21 x 2 = 42

8 0
3 years ago
LMNP is a rectangle. Find the value of x and the length of each diagonal. LN =7x+9 and MP=9x-9
PilotLPTM [1.2K]

Answer:

see explanation

Step-by-step explanation:

The diagonals of a rectangle are congruent, thus

MP = LN , substitute values

9x - 9 = 7x + 9 ( subtract 7x from both sides )

2x - 9 = 9 ( add 9 to both sides )

2x = 18 ( divide both sides by 2 )

x = 9

LN = 7x + 9 = (7 × 9) + 9 = 63 + 9 = 72

MP = 9x - 9 = (9 × 9) - 9 = 81 - 9 = 72

7 0
3 years ago
Perform the following conversion.<br> 123 cm to m
lianna [129]

Answer:

1.23 meters

Step-by-step explanation:

divide it by 100..

123/ 100 = 1.23 m

7 0
3 years ago
Read 2 more answers
Write an expression that is equivalent to two over three(4x + 9).
svp [43]
2/3(4x + 9) = 8/3x + 6
8 0
3 years ago
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