Question: A random sample of 90 observations produced a sample mean of 25.9 and a sample standard deviation of 2.7.Which one of the following best approximates

A random sample of 90 observations produced a sample mean of 25.9 and a sample standard deviation of 2.7.Which one of the following best approximates a 90% confidence interval for ?

Group of answer choices

25.9 5.4

(25.43 , 26.37)

(23.2 , 28.6)

25.9 0.56

cannot be determined from the data

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

A random sample of 90 observations produced a mean of x = 25.9 and a standard deviation of s = 2.7. Find an approximate 95% confidence interval for the population mean, . A. 29.8 .52 B. 25.1 .69 C....

A random sample of 16 individuals finds a sample mean value of 32 and sample standard deviation of 12. What is the 90% confidence interval for the population mean? A random sample of 16 individuals...

A random sample of 89 observations produced a mean x (x bar) = 25.8 and a standard deviation s= 2.4. - find a 95, 90, and 99% confidence interval for u. In a sample of 304,000 items mailed between...

A water company wanted to estimate its customers pay per month. A random sample of 25 customers produced a sample mean of $30 and a sample standard deviation of $5. Find a 90% confidence interval for...

A random sample of 90 observations produced a mean of Xbar = 25.9 and a standard deviation of s=2.7 find an appropriate 95% confidence interval for the population mean

95. (20 POINTS). A simple random sample of size 36 is drawn. The sample mean = 19.6, and the sample standard deviation S = 5.2. a) Construct a 96% confidence interval. b) Construct a 90% confidence...

Question 1 2 pts A random sample of 36 school lunches yielded a mean of 754 calories with a standard deviation of 105 calories. Construct a 95% confidence interval for the population mean number of...

A large state university is interested in estimating the average monthly earnings of its alumni who graduated with a graduate degree (e.g., MSC, MA, MFA, PhD, etc.) over the last decade. From a large...

Suppose you are a financial consultant trying to determine whether a group of 1,500 country club members represents a good source of potential clients for a real estate firm in New Jersey. To...

Please help me, I am stump A major video rental chain recently decided to allow customers to rent movies for three nights rather than one. The marketing team that made the decision reasoned that at...

Consider the field trip described in (1). For the problem you have defined, develop an analytical model, research question, and the appropriate hypotheses. Discuss these with the decision maker you...

Company A is preparing a deal to acquire company B. One analyst estimated that the merger would produce 175 million dollars of annual cost savings, from operations, general and administrative...

Which one of these loans meets the definition of an amortized loan?Multiple choice question.A loan requires monthly interest payments with the principal repaid at maturity.The annual payment for the...

Collegiate Rings produces class rings. Its best-selling model has a direct materials standard of 15 grams of a special alloy per ring. This special alloy has a standard cost of $64.20 per gram. In...