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Julli
3 days ago
11

A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random

sample of 14 cars shows an average speed of 24.0 mph, with a sample standard deviation of 2.2 mph. Assume that the speeds of cars are normally distributed. For a significance level of α = 0.05, do we reject the null hypothesis? Which of the following is an appropriate conclusion?
Mathematics
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g A modal class in a histogram is the class that includes a. the largest number of observations. b. the smallest observation in
Leona [12618]

Answer:

a. the class with the highest number of observations.

Step-by-step explanation:

The mode refers to the value within a dataset that appears most frequently. This indicates that it occurs with greater frequency than other values.

In a histogram, the modal class denotes the category that has the most observations, demonstrating that the variables in that category have a higher occurrence than those in others. Consequently, the answer sought is option a.

4 0
1 month ago
Use the scale and map measurements to find the actual distance from New Wilmington to Sharon through Mercer. What is the actual
Inessa [12570]
Your response is C!

I hope this is helpful!


~Cakes



8 0
1 month ago
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Joan draws a bar chart to show the temperatures at midday on March 1st in five cities. Joan has made four mistakes in her diagra
tester [12383]

Answer:

Step-by-step explanation:

Characteristics of a bar graph include:

1). There must be uniform spacing between the bars or columns.

2). Each bar or column should have a consistent width.

3). All bars must share the same baseline.

4). The height of each bar corresponds to the data value.

Based on these criteria,

- Spacing between London-Paris and Rome-Oslo isn’t uniform.

- Width of the Munich bar differs from the others.

8 0
3 months ago
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A manufacturer of a certain brand of appliance estimates that he can sell 5000 units a year at Php 900.00 each and that he can s
lawyer [12517]

To start, calculate the return for each price per unit

Return = quantity sold x price per unit

Return1 = 5000 units x Php 900

Return1 = Php 4,500,000

Next, figure out the return for the other price per unit

Return2 = quantity sold x price per unit

Return2 = (5000 + 1500 units) x ( Php 900 – 100)

Return2 = Php 5,200,000

Thus, a price of Php 800 per unit will result in a higher return.

8 0
2 months ago
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