1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
S_A_V [24]
2 years ago
9

A teacher instituted a new reading program at school. after 10 weeks in the​ program, it was found that the mean reading speed o

f a random sample of 21 second grade students was 94.8 wpm. what might you conclude based on this​ result? select the correct choice below and fill in the answer boxes within your choice
Business
2 answers:
Bess [88]2 years ago
5 0

Answer:

0.0139

Explanation:

Given that:

The number of sample (n) = 21

The sample distribution has mean (μ) and a standard deviation of σ/√n

The z score is given as (x - mean)/ standard deviation

x = 94.8 wpm, let us assume that σ = 10 and μ = 90

Therefore: z = (x - μ) / (σ/√n) = (94.8 - 90) / (10/√21) = 2.2

To calculate the probability using Z table:

P(X>94.8) = P(Z>94.8) = 1 - P(Z<94.8) = 1 - 0.9861 = 0.0139

The probability is low that is less than 0.05, the program is more effective than the old one.

ira [324]2 years ago
3 0

Additional information:

This question is part of a much longer question, and this would be part D which refers to a new reading program. The difference with the old data collected is that before only 10 students were tested. Now the question asks why would there be a large variation in the sample mean, from 88 words per minute to 94.8 wpm.

The first data collected had a mean of 88 wpm and a standard deviation of 10 wpm.

Answer:

The program is effective since the probability of obtaining 94.8 wpm from a larger sample doesn't fall within the normal distribution and 95% confidence interval.

Explanation:

we are given the mean = 94.8

we must calculate z = (94.8 - 88) / (10 / √21) = 6 / 2.182 = 2.7495

now we find the probability that X is between the confidence interval using a normal distribution:

P(X > 94.8) = P(z > 2.7495) = 1 - P(z < 2.7495)*

= 1 - 0.997016 = 0.002984

Since the probability of z < 2.7495 at P <0.05 is very small (only 0.002984), then we can conclude that the new method was a success.

*I used a P-value calculator using z = 2.7495 and 5% significance.

You might be interested in
Based on Jacobs (1954). The Carter Caterer Company must have the following number of clean napkins available at the beginning of
belka [17]
Do you still need help with this question?
8 0
2 years ago
Unipeg Corporation has uniform high sales targets for its employees all across the globe, regardless of the environmental constr
FinnZ [79.3K]

Answer: 4. unrealistic performance goals.

Explanation:

Unipeg Corporation has a standardized performance target across the globe which is high enough on its own without having to account for environmental constraints.

This is very unrealistic because different environments have different constraints that can either increase or decrease sales.

Say for instance Unipeg is engaged in the sale of trendy women clothing including mini skirts, sleeveless tops, crop tops etc but has a presence in Iran or Saudi Arabia. The sales there cannot be expected to match up to sales in Japan or Brazil for instance and to expect such is unrealistic.

Penalizing the Employees for these shortfalls has led to them falsifying data and that is down to the unrealistic nature of Unipeg's designs.

5 0
3 years ago
The consumer's level of involvement can lead to two types of buying decisions: __________ or
Olenka [21]

Answer:

The consumer's level of involvement can lead to two types of buying decisions: limited problem solving or extended problem solving

Explanation:

limited problem solving:

It is a problem solving process in which customer is only willing to put very little effort to make a purchase decision in order to fulfill his want or need. Purchaser uses simple decision rules for reaching a a purchase decision with minimal research done. He is not much concerned about the best solution and has limited resources and time for searching information and assessing each alternative thoroughly.

For example: you need a new pair of joggers for gym.  You are already have an idea about joggers and know about new available materials and attributes. So you might do a bit research online and come to a decision comparatively quickly. You might consider your favorite outlet instead of searching for the joggers at every outlet. So you take buying decision limiting involvement in this process.

extended problem solving

In this process the costumer attempts to collect as much information as possible, and thoroughly assess and evaluate product alternatives. So in this situation buyer don't have much idea about the product brands, attributes and characteristics to access the product. Purchaser will research, differentiate and put a lot of effort for taking best buying decision that will fulfill his needs. prior to purchasing the product, he might visit various outlets, research online, search for reviews and suggestions, take information from outlet staff. about the product Marketer should provide with such information to customer.

For example high value items like car, a house etc. Such items are not purchased often so the consumer will invest a lot of time in research and comparison in order  to take the best decision.

6 0
3 years ago
Utica Company has offered to supply Kingston's entire annual requirements of the part for $53 each. If Kingston buys the part fr
miss Akunina [59]

Answer:

$480,000

Explanation:

Calculation to determine what total relevant costs to make the part internally are

First step is to calculate Relevant cost per unit:

Relevant cost per unit:

Direct materials $6

Direct labor $24

Variable manufacturing overhead $12

Fixed manufacturing overhead ($15 × 0.40) $6

Relevant manufacturing cost $48

Now let determine the Total relevant costs to make the part internally

Total relevant costs to take the part internally=($48 × 10,000)

Total relevant costs to make the part internally = $480,000

Therefore total relevant costs to make the part internally are $480,000

5 0
3 years ago
Suppose the current market price of corn is $3.75 per bushel. Your firm has a technology that can convert 1 bushel of corn to 3
Aleks04 [339]

Answer:

At 1.783 or more, the conversion yield better gain than sales the corn

Explanation:

The ethanol conversion become attractive if the cost for doing the conversion are lower than the sale revenue for the product.

<u>total cost: raw materials + conversion cost</u>

corn price:           $  3.75

conversion cost:  $  1.60

Total cost:            $  5.35

<u>output: gallon of ethanol per bushel</u>

3 gallons of ethanol per bushel

total cost / output = 5.35/3 = 1.783 cost per gallon

5 0
3 years ago
Other questions:
  • John Smith owns a bookstore that is covered under an unendorsed Commercial General Liability (CGL) Coverage Form. A customer fal
    13·1 answer
  • With the ___________ inventory control system, producers hold only the amount of materials and parts that they need for a short
    13·1 answer
  • Which two things do benefits tell you about a product
    13·1 answer
  • chase lives in oregon but works for a company that is located in florida. what business trend is this an example of ?
    15·1 answer
  • Extreme caution should be exercised when using electric tools in damp locations
    15·2 answers
  • While goods are ________, services are ________. analytic; leveraged. produced; performed. analytic; produced. produced; leverag
    12·2 answers
  • At the beginning of the year, the balance in Allowance for Doubtful Accounts is a credit of $760. During the year, previously wr
    13·1 answer
  • Adding Erik Olin Wright’s concept of contradictory class locations to the Marxist concept of capitalists versus the proletariat,
    14·1 answer
  • What are items such as health insurance, life insurance, sick days, vacation time, and retirement savings called when provided b
    14·1 answer
  • ____1. The process of coordinating and overseeing the work performance of individuals working together in organizations, so that
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!