Burger Hut sells 224 burgers on an average day, with a variance of 9 burgers. How many burgers should they have on hand so they will be sure to run out only 4% of the time? Assume a normal distribution.

Q: Imagine a soldier in a trench during an armed conflict. In the enemy camp, inside another trench, is…

A: P(sniper) = 0.001 P(regular) = 0.999 P(hit |sniper) = 0.87 P(hit | regular) = 0.18

Q: The average fruit fly will lay 400 eggs into rotting fruit. A biologist wants to see if the average…

A: From the provided information, Sample size (n) = 12 Level of significance (α) = 0.05

Q: se technology to calculate the P-value P-value = (Round to three decimal places as needed.)

A: Given that  Sample size n1=1120 , n2=1048 Sample proportion p1^=0.47 , p2^=0.46

Q: The average American gets a haircut every 39 days. Do college students get their hair cut less…

A: A hypothesis test is a statistical  method that uses sample data to evaluate a hypothesis  about a…

Q: Run an appropriate test to compare variance between x1 and x2. What is the name of the test you…

A:

Q: udents? The data below shows the results of a survey of 20 college students asking hem how many days…

A: Given Sample size = 20 Sample sum = 812 Sample mean = 40.6

Q: Once down to about 15, the world’s only wild flock of whooping cranes now numbers a record 237 birds…

A: Please note that as per our guidleines if multiple sub-parts are there in a question we can answer…

Q: The average fruit fly will lay 395 eggs into rotting fruit. A biologist wants to see if the average…

A: a) Here, the population standard deviation is unknown but the parent population from which the…

Q: he average fruit fly will lay 401 eggs into rotting fruit. A biologist wants to see if the average…

A:

Q: A statistics professor administered an exam to three different classes. The 8:00class had 20…

A: It is given that the, A statistics professor administered an exam to three different classes.  The…

Q: figure to the nght, hich shows the percentages of adults from several countries who favor building…

A: The survey included the random sample 1125 adults from country A, 1003 adults from country B, 1019…

Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A:

Q: Find the variance of X X: 73,51,73,182,45,90,111

A:

Q: 0.72. Suppose that we randomly pick 25 daytime statistics students. In words, define the

A: Given that,The variable X has an exponential distribution with a mean is 0.72.No. of students To…

Q: Let p, represent the population proportion for Country C and p2 represent the population proportion…

A: Given that Sample sizes  for country C and country D n1=1024 , n2= 1078 Level of significance =alpha…

Q: normal. 362, 395, 367, 389, 403, 374, 378, 404, 362, 399, 382, 383, 399, 406, 386, 390 What can be…

A: Answer Given,362,395,367,389,403,374,378,404,362,399,382,383,399,406,386,390The sample size[n] =16We…

Q: The "true" variance is also the population variance True False

A: # Relation between True varience and population varience ?

Q: does the range and standard deviation remain unchanged because the addition of 7 is a constant so…

A: given data  mean = 74 median = 76.5 range = 65 standard deviation = 11 add 7 points to each score…

Q: The last student surveyed was active for 25 minutes. What percent of students were more active than…

A: It is given that Min = 4, Median = 25 and maximum = 86

Q: The average fruit fly will lay 407 eggs into rotting fruit. A biologist wants to see if the average…

A: Answer  Given  417,435,426,414,435,414,405,439,414,424,419,429,405,433,391,406 sample size [n] = 16…

Q: The average fruit fly will lay 420 eggs into rotting fruit. A biologist wants to see if the average…

A: From the given data: x¯=∑xn=620015=413.33s=16.6548 n=15   a) For this study, we should use…

Q: in a frequency distribution the coefficient of skewed ness based on quartiles is 0.6. it the sum of…

A:

Q: The average fruit fly will lay 418 eggs into rotting fruit. A biologist wants to see if the average…

A: Note: If the post contains multiple sub parts in the question only allow to do first 3 sub parts as…

Q: The average fruit fly will lay 408 eggs into rotting fruit. A biologist wants to see if the average…

A: 1. In this case the population distribution is normal and the population standard deviation is not…

Q: The average fruit fly will lay 424 eggs into rotting fruit. A biologist wants to see if the average…

A:

Q: The average American gets a haircut every 44 days. Is the average smaller for college students? The…

A: Introduction: Denote μ as the true average number of days that college students get a haircut.

Q: Before the furniture store began its ad campaign, it averaged 213 customers per day. The manager is…

A: D.   Consider that μ defines the population mean number of customers.   Here, it is needed to check…

Q: A firm produces bolts whose length x is normally distributed with a Me = 78.3 mm and a SD = 1.4mm.…

A: Given information- Population mean, µ = 78.3 mm SD = 1.4 mm Let X be the length of the bolt produces…

Q: The variance is sometimes a negative number.

A:

Q: TKK Products manufactures electric light bulbs. Lab tests show that the distribution of lives (in…

A:

Q: Give three real-world example of an empirical distribution of data.

A: Empirical distribution :  It is related to observed frequency ( It is frequency distribution of…

Q: The average fruit fly will lay 375 eggs into rotting fruit. A biologist wants to see if the average…

A: Given,   Sample size = 15   The objective is to test the given claim.

Q: A civil engineering student has delivered a cylinder of concrete for the "concrete strength…

A: Let the random variable X denotes the strength of the student's concrete cylinder. Given that…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.