How do you find variance with only the standard deviation and number of values?How do you find variance in general?

Q: Overproduction of uric acid in the body can be an indication of cell breakdown. This may be an advan...

A: The provided information are:

Q: 1.) The mean monthly utility bill for a sample of households in a city is $178.95 with a standard de...

A: Mean utility bill, µ= $178.95Standard  deviation, σ = $13.45

Q: (a) Write the claim mathematically and identify Upper H 0H0 and Upper H Subscript aHa. ​(b) Find the...

A: Hello there! given question has more than three sub-parts. According to our policies can answer only...

Q: Let x be the age of a licensed driver in years. Let y be the percentage of all fatal accidents (for ...

A: (c)Equation of the least squares regression line:The given data is represented in the following tabl...

Q: The number of unhealthy days based on the AQI ( Air Quality Index) for a random sample of metropolit...

A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is unknown is give...

Q: Age 18-23 24-29 30-35 36-41 42-47 48-53   Male 2 2 3 1 2 1 11 Female 5 3 4 3 1 3 19   7 5 7 4 ...

A: Given data of male and female people with in the mentioned age groups as shown below.The total numbe...

Q: A conservation biologist is working on increasing population sizes of the silver-leaf lupine (Lupinu...

A: Solution:a) Effects of ANOVA:It is given that three different treatments assigned to different seeds...

Q: Suppose you would like to estimate, with 97% confidence, the proportion of computers that need repai...

A: It is given that the level of confidence is 97% and desired margin of error E is 0.035.The formula f...

Q: Suppose that from the past experience a professor knows that the test score of a student taking his ...

A: If a random variable X has a distribution with mean µ and standard deviation σ, then the Z-score is ...