9th grade       10th grade        11th grade          12th grade  6                             10                       17                       15 9                              12                      8                         16 6                              11                      11                        12 7                              11                      14                        12 7                              14                      15                         12   find the critical value for F (F crit) with a standard deviation .05

Q: A random sample of 100 automobile owners in a region shows that an automobile is driven on average…

A: The random sample size of automobile owners, The mean distance automobile is driven,  kmsStandard…

Q: find attached

A: The objective of this question is to determine whether there is statistical evidence to support the…

Q: The mean score on a driving exam for a group of​ driver's education students is 60 ​points, with a…

A: Solution:From the given information, k value is 22, standard deviation of points is 4 and mean…

Q: Sodium čontent in one of its breakfast sandwiches is no more than 927 milligrams. A random sample of…

A: The claim is that the mean sodium content in one of its breakfast sandwiches is no more than 927…

Q: Assume X is normally distributed with a mean of 10 and a standard deviation of 2. Determine the…

A: given data μ=10σ=2normal distributionP(x<13)=?

Q: Workers at a certain soda drink factory collected data on the volumes (in ounces) of a simple random…

A: Population S.D = ? =0.16 Sample size = n = 18 Sample S.D = s = 0.12 H0 : ?  =0.16     H1 : ?…

Q: An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.7 minutes.…

A: From the provided information,Sample size (n) = 32Sample mean (x̄) = 12.2Sample standard deviation…

Q: how has the z score been calculated in this, please don't use z table

A: The objective of the question is to find out the warranty period in months that the manufacturer can…

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A: Given mean = 1503Standard deviation = 308The minimum score required for admission = 1626The Z score…

Q: Determine the value of k and b such that P(k < X < b) = 0.72

A: Let X denote the CBF in the brains of healthy people. Given that X follows N(mean = 300, SD = 20)…

Q: Arandom sample of 90 eighth grade students' scores on a national mathematics assessment test has a…

A: From the provided information, Sample mean (x̅) = 276 Sample size (n) = 90 Population standard…

Q: High Temperatures in January Daily weather observations for southwestern Pennsylvania for the first…

A: a) The null and alternate hypothesis are H0 ; σ2=8HA ; σ2&gt;8 This hypothesis test is one sided…

Q: Ultrasound was used to gather the accompanying corrosion data on the thickness of the floor plate of…

A:

Q: c. Find P(X>40).

A: Let X denote the automobile mileage ratings. Given that X follows N(mean = 37, SD = 1.4), then Z =…

Q: Find the value of the test statistic.   The value of the test statistic is ___ ( round to two…

A:

Q: A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is…

A: Solution

Q: nd the mean and standard deviation for each uniform viation" answers to 4 decimal places.) Mean…

A: Formulae : Let X follows Uniform distribution over interval ( a , b ) Mean :  μ= a + b 2 Standard…

Q: BlueBolt Bottlers has a bottle filling process with a mean value of 58 ounces and a standard…

A: Given Information: Mean μ=58 Standard deviation σ=11

Q: An oceanographer claims that the mean dive duration of a North Atlantic right whale is 11.6 minutes.…

A: Assume that μ is the population mean dive duration of North Atlantic right whale.

Q: the upper specification limit USL equ and the lower specification limit equa after taking a sample…

A: Given:- Upper specification limit is 60 minutes; USL=60 Lower specification limit is 10 minutes;…

Q: Calculate the standard deviation in minimum daily temperature in Dunedin during June 2023…

A: To calculate the standard deviation of the minimum daily temperatures in Dunedin for June 2023, we…

Q: Use z scores to compare the given values. In a recent awards ceremony, the age of the winner for…

A: Solution: Let X be the age of the best actor and Y be the mean age of the best actress. From the…

Q: The pregnancy length in days for a population of new mothers can be approximated by a normal…

A: Given : Pregnancy length in days for a population of new mothers can be approximated by a normal…

Q: The wait times at a local coffee shop are normally distributed with a mean of 3.2 minutes with a…

A: We have given that  X~N(mu, sigma^2) mu=3.2 , sigma =0.8 Z-socre =(x-mu)/sigma

Q: What is the minimum value of a standard deviation?   1 0 it has no minimum -1

A: Standard deviation is a measure that quantifies the amount of variation or dispersion of a data set…

Q: A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is…

A: Givensample mean(x)=15.3standard deviaiton(s)=2.11sample size(n)=23α=0.10

Q: SOLVE FOR THE CRITICAL VALUE (4 DECIMAL PLACES) Amstat News (December 2004) lists median salaries…

A:

Q: µ1 = mean time spent by children in the 100 m race µ2 = mean of the time that the girls do in the…

A:

Q: Water temperature (degrees C) Fish respiration rate (bpm) 14 76 18 92 21 100 Imagine that…

A: The data collected for the three fish is a sample. The formula for Sample Standard Deviation is:…

Q: 12, 17, 17, 37, 43, 46

A: Given data values 12,17,17,37,43,46 Number of data values (N)= 6 Given that  ∑(X-x¯)2 =1125.33334 =…

Q: A sociologist claims that children spent more time watching television in 1981 than children do…

A: Mean is the number of observations divided by the total number of observations:   1981 Recently…

Q: Español Cigarette Smoking A researcher found that a cigarette smoker smokes on average 30 cigarettes…

A: Given that  The average of a cigarette smoker smokes =30 Sample size (n)=9 Sample mean=32 Sample…

Q: A random sample of 100 automobile owners in a region shows that an automobile is driven on average…

A: A random sample of 0 automobile owners in a region shows that an automobile is driven on average…

Q: 1. Fill in the blanks to summarize what the descriptive statistics tell us about application entry…

A: Histogram : Histogram is used to represent data Graphically  how frequently observations occurred in…

Q: A credit card company claims that the mean credit card debt for individuals is greater than $5,000.…

A: Claim: The mean credit card debt for individuals is greater than $5,000. Null Hypothesis: H0:μ≤5000…

Q: ealth of a person's lungs is the amount of air a person can exhale under force n one second. This is…

A: Solution: Given information: n=58 Sample size  μ=2.1 Population mean σ=0.5 Population standard…

Q: Ultrasound was used to gather the accompanying corrosion data on the thickness of the floor plate of…

A:

Q: 1. Which investment give a higher expected profit? 2. If the businessman is willing to take a risk,…

A: here for investment A mean = 7200 variance = 14760000   for investment B mean = 7500 variance =…

Q: Score: 0 of 1 pt 17 of 25 (17 complete) ▼ HW Score: 64%, 16 of 25 6.2.6 Question Help ▼ A day trader…

A: To find: The standard deviation of the day traders option.

Q: # of days running Weight loss (kg) 1 1 2 5 6 7 9 3 7 4 4 5 Metric # of days mean # of days standard…

A: The given paired observations of "days of running" and the "weight loss amount (in kg)" are:# of…

Q: If the sample size is n=81, find the mean and standard deviation of the distribution of sample…

A: It is given that X = IQ scores ~ N(mean = 95, SD = 18)

Q: n a sample of 13 randomly selected high school​ seniors, the mean score on a standardized test was…

A: The objective of the question is to determine whether the t-value for the original sample falls…

Q: A random sample of 78 eighth grade students' scores on a national mathematics assessment test has a…

A:

Q: No. of workers No. of articles No. of workers No. of articles 17 13 18 23 19 7 24 20 11 25 8 21 14…

A:

Q: Ages of Gamblers The mean age of a random sample of 23 people who were playing the slot machines is…

A:

Q: IQ scores of people around the World are normally distributed, with a mean of 100 and a standard…

A: Given that: Mean μ=100 Standard deviation σ=15 A genius is someone with an IQ greater than or equal…