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zaharov [31]
3 years ago
5

HELP IF YOU SOLVE THIS 100 PTS

Mathematics
2 answers:
postnew [5]3 years ago
8 0
68% is the answer or 68.333% for an exact answer
Hope this helps(:
mariarad [96]3 years ago
3 0
Calculater I'm pretty sure
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Elliot read a report from a previous year saying that 6%, percent of adults in his city biked to work. He wants to test whether
melomori [17]

Answer:

The appropriate set of hypothesis for his significance test is null hypothesis H_0: p = 0.06 and alternate hypothesis H_1: p \neq 0.06

Step-by-step explanation:

Elliot read a report from a previous year saying that 6%, percent of adults in his city biked to work. He wants to test whether this proportion has changed.

At the null hypothesis we test if the proportion is still the same, that is, of 6%. So

H_0: p = 0.06

At the alternate hypothesis, we test if the proportion has changed, that is, it is different of 6%. So

H_1: p \neq 0.06

What is an appropriate set of hypotheses for his significance test?

The appropriate set of hypothesis for his significance test is null hypothesis H_0: p = 0.06 and alternate hypothesis H_1: p \neq 0.06

8 0
3 years ago
Please help asap with this question I'm really finding it tricky
Rina8888 [55]

Answer:

0.7

Step-by-step explanation:

this is the answer because the zero means less in this equation.

7 0
3 years ago
Brand name producers of aspirin claim that one advantage of their aspirin over generic aspirin is that brand name aspirin is muc
11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

The claim here is that the brand name aspirin is more consistent in the amount of active ingredient used than the generic aspirin.

This is a test of 2 independent groups. The population standard deviations are not known. Let μ1 be the mean amount of active ingredients in brand name aspirin and μ2 be the mean amount of active ingredients in generic name aspirin

The random variable is μ1 - μ2 = difference in the mean amount of active ingredients between the brand name and generic aspirin

We would set up the hypothesis.

The null hypothesis is

H0 : μ1 ≥ μ2 H0 : μ1 - μ2 ≥ 0

The alternative hypothesis is

H1 : μ1 < μ2 H1 : μ1 - μ2 < 0

This is a left tailed test

Since sample standard deviation is known, we would determine the test statistic by using the t test. The formula is

(x1 - x2)/√(s1²/n1 + s2²/n2)

From the information given,

x1 = 325.01

x2 = 323.47

s1 = 10.12

s2 = 11.43

n1 = 200

n2 = 180

t = (325.01 - 323.47)/√(10.12²/200 + 11.43²/180)

t = 1.24

1.237877

The formula for determining the degree of freedom is

df = [s1²/n1 + s2²/n2]²/(1/n1 - 1)(s1²/n1)² + (1/n2 - 1)(s2²/n2)²

df = [10.12²/200 + 11.43²/180]²/[(1/200 - 1)(10.12²/200)² + (1/180 - 1)(11.43²/180)²] = 1.53233946713/0.00537245359

df = 285

We would determine the probability value from the t test calculator. It becomes

p value = 0.108

Since alpha, 0.025 < than the p value, 0.108, then we would fail to reject the null hypothesis. Therefore, at 2.5% level of significance, these data support the brand name producers claim

5 0
3 years ago
BRAINLIEST WILL BE MARKED
zubka84 [21]

Answer:

B. input

Step-by-step explanation:

8 0
3 years ago
Two angles of a quadrilateral measure 130 and 10. The other two angles are in a ratio 2.9. What are the measures of those two a
andrey2020 [161]

Answer:

check: 50+160+130+20 = 360

50:160 = 5 : 16

Step-by-step explanation:et the smaller of the unknown angles be 5x and the larger of the two be 16x

so 130+20+5x+16x = 360

21x = 210

x = 10

so the two missing angles are 50° and 160°

check: 50+160+130+20 = 360

50:160 = 5 : 16

8 0
2 years ago
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