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2 years ago

Write 0.0406 in scientific notation.

Mathematics

2 answers:

SVETLANKA909090 [29]2 years ago

7 0

Answer:

4.06×10^-2

hope that helps uh..☺

Tanzania [10]2 years ago

3 0

Answer:

Ans; 0.0406 = 4.06 ×10–²

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The sum of two polynomials is –yz2 - 322 – 4y + 4. If one of the polynomials is y - 4yz2 - 3, what is the other polynomial? 0 -2

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Answer:

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Read 2 more answers

In 2011, 51% of cell phone owners in a country reported that their cell phone was a smartphone. The following year, the research

Dovator [93]

Answer:

The calculated value Z = 1.5950 < 1.96 at 0.05 level of significance

The null hypothesis is accepted at a 0.05 level of significance

The proportion of cell phone owners in that country who have a smartphone has not increased over time

Step-by-step explanation:

Step(i):-

Given that the random sample size 'n' = 934

Given that the population proportion P = 0.51

Q= 1-P

Q = 1- 0.51 = 0.49

The sample proportion

$p = \frac{x}{n} = \frac{501}{934} = 0.5364$

Level of significance = 0.05

Critical value Z₀.₀₅ = 1.96

Step(ii):-

Null hypothesis: P < 0.51

Alternative Hypothesis : P > 0.51

Test statistic

$Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }$

$Z = \frac{0.536-0.51}{\sqrt{\frac{0.51 x 0.49}{934} } }$

Z = 1.5950

Final answer:-

Given that P-value 0. 0532

P-value > 0.05

Rejected Alternative Hypothesis and accepted null hypothesis

( OR)

The calculated value Z = 1.5950 < 1.96 at 0.05 level of significance

The null hypothesis is accepted at a 0.05 level of significance

The proportion of cell phone owners in that country who have a smartphone has not increased over time

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2 years ago