The average salary of bank managers in a certain city is $85,600 pesos per hour with a standard deviation of $22,400 pesos. What is the probability that a randomly selected bank manager has a salary that does not exceed $71,500 pesos per hour?   a. 0.7354774 b.114306.8 c. 0.2645226 d.neither option is correct

Q: About normal distribution A quality control inspector has drawn a sample of 14 light bulbs from a re...

A:

Q: 2. A distribution of test scores is represented on a box-and-whisker plot and the resulting shape is...

A: Given information: A distribution of test scores is represented on a box-and-whisker plot and the re...

Q: The average salary of bank managers in a certain city is $85,600 pesos per hour with a standard devi...

A: Let X be the random variable from normal distribution with average or mean (μ) =$ 85600 and standard...

Q: Suppose that you receive 10000 laptops, but 20% are defective. You pick two laptops at random, one a...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: Suppose that you have several hypotheses to test, as follow: H1: Costumer focus has a significant po...

A: Let the level of significance be 0.05 The p-value for customer focus is 0.373. p-value>0.05. So w...

Q: Find class boundaries, midpoint, and width for the class.  59-65

A: Given class: 59-65

Q: 2) A large industrial explosion occurred near a densely populated region in a major city. The result...

A: Given data >60: High Exposure 40-59: Medium Exposure 20-39: Low Exposure <20: No exposure    2...

Q: Botanists at the Arizona State University in Tempe, Arizona have been collecting cactus growth data ...

A: The mean is 7.48 and the standard deviation is 1.6.

Q: Area I Area lI Age Group (in years) Population |No. of Deaths No. of Deaths Population 0-10 3000 55 ...

A: Given: Age Group                         Area I                     Area II   Population No of ...

Q: Which of the following is not a property of the mean? A Easily affected by extreme values. B Can be ...

A:

Q: Éxample 2-39. For a random variable x moments of all order exist. Denoting by µ;, the itil central m...

A:

Q: Problem: A system consists of five identical components connected in parallel. What should be the re...

A:

Q: The compressive strength of concrete is being studied, and four different mixing techniques are bein...

A:

Q: An oil company estimates that only 1 well in 17 will yield commercial quantities of oil. Assume that...

A:

Q: Test Score Frequency 3 3 4 5 5 5 6 1 7 2 8 2 9 1 10 2 The mean score on this test is:  The median...

A:

Q: An agricultural experiment considered the effects of K2O (potash) on the breaking strength of cotton...

A: Given:

Q: 5 27 5 1 14 a. List the five-number summary. b. Construct a box-and-whisker plot and describe the sh...

A:

Q: Fishbein and Ajzen (1975) developed TRA (Theory of Reason Action) model. They considered four types ...

A: Anova is a parametric test. It is the extension of two independent sample t test. It is make interpr...

Q: At a popular vacation spot in Arizona, the Arizona Tourism Board took a survey of 100 people to dete...

A: Complete the two way table and Find P ( who are from Arizona or who used a car ) = ? %

Q: Statistically significant findings in ANOVA are found when the observed D-ratio does not exceed the ...

A: The ANOVA related to F- test, and it uses to find the statistically significant difference between t...

Q: Find the standard deviation, s, of sample data summarized in the frequency distribution table below ...

A: Given data : classes Frequency 30-39 1 40-49 3 50-59 8 60-69 3 70-79 15 80-89...

Q: Class intervals Frequency D 0-under 10 10-under 20 20-under 30 Given the following frequency distrib...

A:

Q: Using the data in the scatter plot, what can you tell about the slope of a good model? 115 110 105 1...

A: The given plot shows the scatterplot for the data.

Q: Question 10 The amount of time that people spend at Grover Hot Springs is normally distributed with ...

A: We have given that.   X~N( μ , ?^2 )   μ =68 , ? =15   Z-score =( x - μ )/?   NOTE:- According to ba...

Q: Let x be a random variable that represents the level of glucose in the blood (milligrams per decilit...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: Dave's wardrobe contains 12 T-shirts, of which 10 are gray. Dave selects a T-shirt at random. What i...

A: dave's wardrobe contains 12 T shirts, of which 10 are gray.Dave selects a T shirt at random.

Q: What five things did he do wrong?

A:

Q: Apartment renting is one of the most affected business due to Covid Pandemic. It shows a reasonable ...

A:

Q: SIMPLE convenience store is arranging a promotion plan for the next season. The marketing team wants...

A:

Q: The student council is hosting a drawing to raise money for scholarships. They are selling tickets f...

A:

Q: Read and answer the following problems on hypothesis testing concerning proportions. (See the attach...

A: Solution: Given information: n= 100 Sample size of faculty members x =42 faculty members  presented ...

Q: Use the spinner below. 12 1 11 10 3 4 5 7 6 P(3 or 8) = %3D %3D 00

A:

Q: Are any of the leaf measurements from the table the same as the mean? How many of the leaves were sh...

A: Given Sample size, n=20 Oak-Leaf Lengths: 78,69,62,74,69,51,45,40,9,64,65,64,61,69,52,60,66,71,72,27...

Q: In a class-test in which 135 candidates were examined for proficiency in English and Economics, it w...

A:

Q: The mean height of women in a country (ages 20 – 29) is 64.3 inches. A random sample of 70 women in ...

A: 1) mean =  = 64.3 standard deviation =  = 2.62 n = 70  =  = 64.3 and  =  /  n = 2.62 / 70 = 0.3132 ...

Q: Claim: The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample...

A: GivenClaim: The standard deviation of pulse rates of adult males is less than12 bpmsmple size(n)=164...

Q: An article in Nature Genetics studied gene expression as a function of treatments for leukemia. One ...

A: In this case, the given 4 box plots for the various groups (i.e., the High dose, and control groups ...

Q: Detemine whether the graph shown could represent a variable with a nomal distribution. Explain your ...

A:

Q: The mean life of a tire is 30,000 km. The standard deviation is 2000km. About 99.7% of all tires hav...

A:

Q: The average salary of bank managers in a certain city is $85,600 pesos per hour with a standard devi...

A:

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank ...

A: For the given data Find 95 % Confidence interval at Bank A 95 % Confidence interval at Bank B Interp...

Q: Classify the histogram as skewed to the left, skewed to the right, or approximately symmetric.

A: A histogram is a graphical representation of data which indicates the spread, shape and distribution...

Q: Suppose babies bom aher a gestation period of 32 to 35 weeks have a mean weight of 3000 grams and a ...

A:

Q: Leichtman Research Group survey of 1050 TV households, 75.1% of them had at least one Internet-conne...

A: We have given that  Sample proportion p^=75.1%=0.751 Population proportion =78%=0.78 Sample size n =...

Q: 3. The following model is a simplified version of the multiple regression model used by BEST Econome...

A: Disclaimer : “Since you have posted a question with multiple sub-parts, we will solve first three su...

Q: The following time series shows the sales of supermarket chain over the last six months.  Month Sa...

A: Given the sales of supermarket chain over the last six months as Month Sales ($ 000) Augus...

Q: 26, 28, 31, 28, 37, 33, 46, 39, 29, 43, 49, 30, 40, 38, 39 Using StatKey or other technology, find t...

A:

Q: In an experiment, people have to respond with indexes of their left and right hand whether a stimulu...

A: 64 is the answer.

Q: Large χ2 values are sometimes obtained in situations where the null hypothesis is true.  Explain why...

A: Please find the explanation below. Thank you

Q: A store manager gathers some demographic information from the store's customers. The following chart...

A: