Small, energy-efficient, Internet-centric, new computers are increasingly gaining popularity (The New York Times, July 20, 2008). Some of the biggest companies are wary of the new breed of computers because their low price could threaten PC makers' already thin profit margins. An analyst comments that the larger companies have a cause for concern since the mean price of these small computers has fallen below $350. She examines six popular brands of these small computers and records their retail prices as: (You may find it useful to reference the appropriate table: z table or t table). $322 $269 $373 $412 $299 $389 a. What assumption regarding the distribution of the price of small computers is necessary to test the analyst's claim? Assume that the price of small computers is distributed.

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Che
b. Select the appropriate null and alternative hypotheses to test the analyst's claim.
O HO: H2 350; HA u<350
O Ho: H = 350; HAN# 350
O Ho: US 350; HÆ> 350
c-1. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round intermediate calculations to
at least 4 decimal places and final enswer to 2 decimel pleces.)
Test statistic
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Transcribed Image Text:Che b. Select the appropriate null and alternative hypotheses to test the analyst's claim. O HO: H2 350; HA u<350 O Ho: H = 350; HAN# 350 O Ho: US 350; HÆ> 350 c-1. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final enswer to 2 decimel pleces.) Test statistic < Prev 9 of 12 Next > search S18 PM 3/21/2021 B& 4+ prt sc delete end %24 4 & 6 L. 9 %3D backspace num lock T P. home F J K enter 4. pause shift end alt ctri
Exercise 9-43 Static
Small, energy-efficient, Internet-centric, new computers are increasingly gaining popularity (The New York Times, July 20, 2008). Some
of the biggest companies are wary of the new breed of computers because their low price could threaten PC makers' already thin
profit margins. An analyst comments that the larger companies have a cause for concern since the mean price of these small
computers has fallen below $350. She examines six popular brands of these small computers and records their retail prices as: (You
may find it useful to reference the appropriate table: z table or ttable).
$322
$269
$373
$412
$299
$389
a. What assumption regarding the distribution of the price of small computers is necessary to test the analyst's claim?
Assume that the price of small computers is
distributed.
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backspace
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Transcribed Image Text:Exercise 9-43 Static Small, energy-efficient, Internet-centric, new computers are increasingly gaining popularity (The New York Times, July 20, 2008). Some of the biggest companies are wary of the new breed of computers because their low price could threaten PC makers' already thin profit margins. An analyst comments that the larger companies have a cause for concern since the mean price of these small computers has fallen below $350. She examines six popular brands of these small computers and records their retail prices as: (You may find it useful to reference the appropriate table: z table or ttable). $322 $269 $373 $412 $299 $389 a. What assumption regarding the distribution of the price of small computers is necessary to test the analyst's claim? Assume that the price of small computers is distributed. Prev. 9 of 12 ! Next > earch 00 S:18 PM 3/21/202 BE 144 to Tra wwort sc delete home end & L. 6 8 %3D Tum lock backspace Y P home F K L 4 enter pause t shift alt ctrl Σ ト
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