Missy Walters Owns a Mail-Order Business Specializing in Baby Clothes

question 45

Essay

Missy Walters owns a mail-order business specializing in baby clothes. Missy is confident the dollar amounts of all her orders are normally distributed or nearly so. Assume she knows the mean and standard deviation are $249 and $46, respectively, for all orders she receives.
a. Describe the sampling distribution of , where is the mean dollar-amount of an order for a sample of 10 orders.
b. What is the probability that a simple random sample of 30 orders will provide an estimate of the population mean dollar-amount of an order that is within plus or minus $10 of the actual population mean?
c. What happens to the sampling distribution of when the sample size is increased from 30 to 90? With a sample size of 90, what is the probability that will be between $239 and $259?

Understand the concepts of self-esteem, self-concept, and self-understanding in relation to identity development.

Articulate how perspective taking influences self-understanding from infancy through adolescence.

Describe the process of achieving a bicultural identity.

Recognize the role of family, social networks, and societal acceptance in identity formation.

---

Definitions:

Active Exocytosis

Active exocytosis is a cellular process where substances are expelled from a cell, requiring energy for vesicles to fuse with the plasma membrane.

Chromatid

Each of the two strands of a replicated chromosome, which are joined at the centromere before cell division.

Centromere

The area on a chromosome where spindle microtubules connect through the kinetochore during the process of cell division.

Chromatin

The complex of DNA and protein found in the nucleus of eukaryotic cells, playing a role in gene regulation and expression.