6th grade math look at the pictures

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

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3 0

1 year ago

A circular labyrinth has a circumference of 75 feet what is the distance from the outside edge of the labyrinth in to it center

Bas_tet [7]

The distance from the outside edge of a circle to its centre is given by its radius. The circumference of a circle is given by 2πr, thus if we know that this is equal to 75 feet and using π = 3.14, we get:

75 = 2*3.14*r
r = 11.942
Thus r = 12 ft (to the nearest foot)

6 0

3 years ago

The recipe for a fruit salad calls for 5 bananas, 3 peaches, 2 apples, 1 pear, 8 strawberries, 1 cantaloupe, and 2 oranges. What

NARA [144]

Answer:

3:22

Step-by-step explanation:

there are three peaches, so the peach value of the peaches in the will be three

adding all the other fruits gives you 22, so the value of the total in the ratio is 22

therefore the ratio is 3 peaches to 22 fruits

which is expressed as

3:22

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3 years ago

Enrico install the drain pipe that runs a horizontal distance of 172 inches and drops 6 inches from the horizontal is the slope

insens350 [35]

Water will run down the drain at even the slightest slope.

7 0

3 years ago

A child finds a cone-shaped pile of wet sand at the beach. She uses a bucket to move the sand pile to a different spot. The buck

Anika [276]

Answer:

Girl- Where's the radius and the heights of the cone tho-

Step-by-step explanation:

8 0

3 years ago