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3 years ago

4. Select all the ways that describe the

Mathematics

1 answer:

postnew [5]3 years ago

4 0

Answer:

all

Step-by-step explanation:

have the awnserbbbnnnnnnnnnnnn

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Thoes are two separate questions number 10 and 11. Please help

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3 years ago

In a 3M Privacy Filters poll, 806 adults were asked to identify their favorite seat when they fly, and 492 of them chose a windo

Snowcat [4.5K]

Answer:

Step-by-step explanation:

If majority of adults prefer a window seat when they fly, it means that more than half or more than 0.5 of the population prefer a window seat when they fly.

We would set up the hypothesis test.

For the null hypothesis,

p = 0.45

For the alternative hypothesis,

p > 0.5

Considering the population proportion, probability of success, p = 0.5

q = probability of failure = 1 - p

q = 1 - 0.5 = 0.5

Considering the sample,

Sample proportion, P = x/n

Where

x = number of success = 492

n = number of samples = 806

P = 492/806 = 0.61

We would determine the test statistic which is the z score

z = (P - p)/√pq/n

z = (0.61 - 0.5)/√(0.5 × 0.5)/806 = 6.24

From the normal distribution table, the p value < 0.00001

Since alpha, 0.01 < than the p value, then we would reject the null hypothesis. Therefore, at a 1% significance level, we can conclude that the majority of adults prefer a window seat when they fly.

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3 years ago

Expressions are shown below

Dahasolnce [82]

Answer:

Step-by-step explanation:

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3 years ago

A lollipop weighs 1 ounce. Do 14 lollipops weigh more than 1 pound

makvit [3.9K]

Answer:

they weigh less than a pound

Step-by-step explanation:

because 1 pound is equal to 16 ounces

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3 years ago

Please help me in problem 8 I need help on it plzZ

stepladder [879]

Answer:

$a.\ -3\\b.\ 6\\c.\ -5\\d.\ 4$

Step-by-step explanation:

First, it is important to remember which are the Negative numbers and the Positive numbers.

The Positive numbers are defined as all those numbers that are greater than zero and the Negative numbers are defined as all those numbers that are less than zero.

Then:

a. "3 degrees below $0\°F$ " indicates that the temperature is actually $-3\°F$ , which is less than zero. Then, it is a negative number:

$-3$

b. Let be 0 represents the sea level, "6 feet above the see level" indicates that the number is positive:

$6$

c. "Lost 5 pounds" indicates that now the actual weight is 5 pounds less than the original, which indicates that it must be expressed as a negative number:

$-5$

d. "Found $\$4$ " means that now the actual amount of money is greater than it was before. Then, the number that represents this is a positive number:

$4$

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3 years ago