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4 years ago

Select Parameter or Statistic to classify each statement.

Mathematics

1 answer:

REY [17]4 years ago

6 0

Answer:

Step-by-step explanation:

A parameter describes a population, and a statistic describes a sample.

The first one is a statistic. A sample was surveyed.

The second one is a parameter. It describes the entire soccer team.

The third one is a statistic. A sample was surveyed.

The fourth one is a parameter. It describes the entire golf team.

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Put these numbers in order from greatest to least. 9, 9/10, -18/36, 28/40 Please help me

mojhsa [17]

Answer:

9>0.9>0.7>-18/36

Step-by-step explanation:

the smallest would be -18/36.

now we have 9,9/10,28/40

simplify 9/10: 0.9

simplify 28/40: divide 28 and 40 by 4. you will have 7/10 which is equal to 0.7.

now the greatest number is 9,then 0.9 and then 0.7

if anything is unclear, ask freely.

4 0

3 years ago

Dayshon begins with five pennies in his bank on Day 1. Pennies are added to his bank every day, resulting in the following geome

lukranit [14]

Answer:

5465 pennies

The explanation is a lot to type and I'm in class just trying to help

5 0

3 years ago

KAKAKAKA REMAVADE YAYAYA HELP

goldenfox [79]

Answer:

Its b

Step-by-step explanation:

you line them up then multiply the denominator of 3/4 to match 1/8. So if 4x2=8 then you do 3/4x2=6/8. so then the answer would be B and 7/8

Hope that helped and it wasnt confusing haha. (to simplify the answer if B and 7/8)

7 0

4 years ago

In 1943, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you on occasion consume, alc

Fynjy0 [20]

Answer:

We conclude that the proportion of adults who totally abstain from alcohol has changed.

Step-by-step explanation:

We are given that in 1943, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you on occasion consume, alcoholic beverages?"

Of the 1100 adults surveyed, 429 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 352 in

Let p = proportion of adults who totally abstain from alcohol.

where, p = $\frac{429}{1100}$ = 0.39

So, Null Hypothesis, $H_0$ : p = 39% {means that the proportion of adults who totally abstain from alcohol has not changed}

Alternate Hypothesis, $H_A$ : p $\neq$ 39% {means that the proportion of adults who totally abstain from alcohol has changed}

The test statistics that would be used here One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of adults who totally abstain from alcohol = $\frac{352}{1100}$ = 0.32

n = sample of adults surveyed = 1100

So, test statistics = $\frac{0.32-0.39}{\sqrt{\frac{0.32(1-0.32)}{1100} } }$

= -4.976

The value of z test statistics is -4.976.

Now, at 0.10 significance level the z table gives critical values of -1.645 and 1.645 for two-tailed test.

Since our test statistics doesn't lie within the range of critical values of z, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that the proportion of adults who totally abstain from alcohol has changed.

4 0

3 years ago

Alex is thingking of a doubles fact. The sum is greater than the sum of 7 + 7 but less than the sum of 8 + 9. What fact is alex

Natali [406]

7+7=14
8+9=17
The closest With a double is 8+8=16

5 0

4 years ago