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ryzh [129]
3 years ago
15

A phycologist is interested in testing the claim that the proportion of algae from a local rivulet that belonged to the particul

ar phylum cyanobacteria is at least half. A random sample of 50 alga was obtained and each alga was categorized as either being cyanobacteria or not. It was found that 38 were, in fact, cyanobacteria. The test statistic for this hypothesis test is...
Biology
1 answer:
Shkiper50 [21]3 years ago
4 0

Answer:

The test statistic for this hypothesis test is - 3.68.

Explanation:

A test statistic is a random variable that is calculated from sample data and used in a hypothesis test. You can use test statistics to determine whether to reject the null hypothesis. The test statistic compares your data with what is expected under the null hypothesis.

Sample proportion = 38/50

= 0.76

Hence,

Test statistic

= \frac{0.76-0.50}{\sqrt{0.50*0.50/50}}

= 3.68

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The major divisions of the peripheral nervous system are the ____.
Nesterboy [21]

Answer:

c. somatic and autonomic systems

Explanation:

The major divisions of the pheripheral nervous systems are the somatic and autonomic systems.

Nervous system is made up of series of nerves that coordinates all the actions of an organism using electrical signals.

It is made up of two parts;

  1. Central nervous systems
  2. Peripheral nervous systems

The central nervous systems is made up of the brain and the spinal chord.

The peripheral nervous systems are the nervous systems outside the central nervous systems.

It is generally divided into somatic and autonomic systems

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3 years ago
What is typhoid fever?
Fudgin [204]

Answer:   Typhoid fever is a life-threatening infection caused by the bacterium Salmonella Typhi. It is usually spread through contaminated food or water. Symptoms include prolonged fever, fatigue, headache, nausea, abdominal pain, and constipation or diarrhoea.

Explanation:

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3 years ago
Another name for exponential growth?
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Augmentation
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Which of the following describes the frequency, graphed as a valued of a population, which results as a bell-shaped curve?
Oliga [24]
That is called A. <span>Circular distribution.</span>
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Identify the suggested set of activities for the given
kotegsom [21]

The suggested set of activities for the corresponding principles regarding the Programs and teachers is explained below.

<h3>How to explain the information?</h3>

1. Programs and teachers engage families in ways that are truly reciprocal.

  • Programs and families can benefit from shared resources and information.
  • Teachers seek information about children’s lives, families, and communities.

2. Programs invite families to participate in program-level decisions and advocacy efforts.

  • Programs invite families to actively participate in making decisions about the program itself.
  • Programs also invite families to advocate for early childhood education in the wider community.

3. Programs invite families to participate in decision-making and goal-setting for their children.

  • Programs invite families to actively take part in making decisions concerning their children’s education.
  • Teachers and families jointly set goals for children’s education and learning both at home and at school.

4. Programs provide learning activities for the home and in the community.

  • Programs use learning activities at home and in the community to improve each child’s early learning.

5. Programs implement a comprehensive, program-level system of family engagement.

  • Programs institutionalize family engagement policies and practices and ensure that teachers, and other staff receive the supports they need to fully engage families

6. Teachers and programs engage families in two-way communication

  • Strategies allow for both school- and family-initiated communication that is timely and continuous.
  • Conversations focus on a child’s educational experience as well as the larger program.

Learn more about teachers on:

brainly.com/question/25658249

#SPJ1

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