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3 years ago

Dr. Tishell studies asks questions about how humans are able to focus on particular stimuli. She is studying _____.

1 answer:

8 0

Based on the scenario above, Dr. Tishell is likely studying selective attention. Selective attention is being defined as a cognitive and behavioral process in which it ignores perceivable information and concentrates on discrete information whether it is objective or even if it is subjective.

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Electric vehicles make up a very small proportion of the overall car market, but by how much has that proportion increased? Inde

Minchanka [31]

Given Information:

The proportion of electric cars sold in 2012 = p₁ = 0.1%

The proportion of electric cars sold in 2016 = p₂ = 0.5%

Sample size of electric cars in 2012 = n₁ = 10,000

Sample size of electric cars in 2016 = n₂ = 20,000

Confidence level = 95%

Required Information:

Change in the proportion of electric cars sold from 2012 to 2016 = ?

Answer:

Change in the proportion of electric cars sold from 2012 to 2016 = (0.284%, 0.516%)

Step-by-step explanation:

The change in the mean is given by

$\mu = p_2 - p_1\\\\\mu = 0.005 -0.001\\\\\mu = 0.004\\\\$

The change in standard error is given by

$SE = z\cdot\sqrt{\frac{p_1(1 - p_1)}{n_1} + \frac{p_2(1 - p_2)}{n_2} }$

Where z is the value of z-score corresponding to 95% confidence level.

$z_{\alpha/2} = 1 - 0.95 = 0.05/2 = 0.025\\\\z_{0.025} = 1.96\\\\$

$SE = 1.96\cdot\sqrt{\frac{0.001(1 - 0.001)}{10,000} + \frac{0.005(1 - 0.005)}{20,000} } \\\\SE = 1.96\cdot 0.00059\\\\SE = 0.00116\\\\$

The change in the proportion of electric cars is

$\mu \pm SE \\\\0.004\pm 0.00116 \\\\(0.004-0.00116) \: and \: (0.004-0.00116)\\\\(0.00284, \: 0.00516)\\\\(0.284\%, \: 0.516\%)$

Therefore, we are 95% confident that the change in the proportion of electric cars sold from 2012 to 2016 is between (0.284%, 0.516%)

5 0

3 years ago

Whats important about the Mayflower?

DedPeter [7]

The pilgrims came over on it so, it's important because it brought people over.

3 0

3 years ago

Read 2 more answers

The company A produces products a, and the company B produces products b. It is known that 3 percent of companies that produce p

slava [35]

Answer:

probability = 0.183 %

Explanation:

given data

produce products = 3 %

probability for producing products b = 6.1

solution

Both companies produce different products and the likelihood of bankruptcy varies depending on the product produced. So, the bankruptcy potential of A and B companies is independent.

we will multiply the probability of each company's bankruptcy and that will be

probability = P(A=bankrupt) × P(B=bankrupt)

probability = 3% × 6.1%

probability = 0.183 %

4 0

3 years ago

Question 8 (4 points)

kogti [31]

Answer:

Meztizo

Explanation:

Meztizo is a ethnic group in Spain. I think it is the answer.

4 0

3 years ago

A theory of how consumers decide what to buy

Andrei [34K]

1)The lifestyle of a consumer will influence on his behavior and purchasing decisions. For example, a consumer with a healthy and balanced lifestyle will prefer to eat organic products and go to specific grocery stores, will do some jogging regularly (and therefore will buy shoes, clothes and specific products),

2)Cultural trends or “Bandwagon effect” are defined as trends widely followed by people and which are amplified by their mere popularity and by conformity or compliance with social pressure. The more people follow a trend, the more others will want to follow it.

3)The membership groups of an individual are social groups to which he belongs and which will influence him. The membership groups are usually related to its social origin, age, place of residence, work, hobbies, leisure, etc..

6 0

3 years ago